www.siemens.com/drives
Low-voltage motor
SIMOTICS FD
Type 1MH1
Operating Instructions
Installation Instructions
Edition 02/2019
For employment in zone 2 (IEC/EN 60079-10-1)
II 3G Ex ec IIC T3 Gc
05.02.2019 15:55
V11.01
Low-voltage motor
SIMOTICS FD
Type 1MH1
Operating Instructions
Installation Instructions
For employment in zone 2 (IEC/EN 60079-10-1)
II 3G Ex ec IIC T3 Gc
Edition 02/2019
Introduction 1
Safety information 2
Description 3
Preparations for use 4
Assembly 5
Electrical connection 6
Start-up 7
Operation 8
Maintenance 9
Spare parts 10
Disposal 11
Service and Support A
Technical data and drawings B
Quality documents C
Legal information
Warning notice system
This manual contains notices you have to observe in order to ensure your personal safety, as well as to prevent
damage to property. The notices referring to your personal safety are highlighted in the manual by a safety alert
symbol, notices referring only to property damage have no safety alert symbol. These notices shown below are
graded according to the degree of danger.
DANGER
indicates that death or severe personal injury will result if proper precautions are not taken.
WARNING
indicates that death or severe personal injury may result if proper precautions are not taken.
CAUTION
indicates that minor personal injury can result if proper precautions are not taken.
NOTICE
indicates that property damage can result if proper precautions are not taken.
If more than one degree of danger is present, the warning notice representing the highest degree of danger will be
used. A notice warning of injury to persons with a safety alert symbol may also include a warning relating to property
damage.
Qualified Personnel
The product/system described in this documentation may be operated only by personnel qualified for the specific
task in accordance with the relevant documentation, in particular its warning notices and safety instructions. Qualified
personnel are those who, based on their training and experience, are capable of identifying risks and avoiding
potential hazards when working with these products/systems.
Proper use of Siemens products
Note the following:
WARNING
Siemens products may only be used for the applications described in the catalog and in the relevant technical
documentation. If products and components from other manufacturers are used, these must be recommended or
approved by Siemens. Proper transport, storage, installation, assembly, commissioning, operation and
maintenance are required to ensure that the products operate safely and without any problems. The permissible
ambient conditions must be complied with. The information in the relevant documentation must be observed.
Trademarks
All names identified by ® are registered trademarks of Siemens AG. The remaining trademarks in this publication
may be trademarks whose use by third parties for their own purposes could violate the rights of the owner.
Disclaimer of Liability
We have reviewed the contents of this publication to ensure consistency with the hardware and software described.
Since variance cannot be precluded entirely, we cannot guarantee full consistency. However, the information in this
publication is reviewed regularly and any necessary corrections are included in subsequent editions.
Siemens AG
Process Industries and Drives
Postfach 48 48
90026 NÜRNBERG
GERMANY
Document order number: A5E32582260
Ⓟ 02/2019 Subject to change
Copyright © Siemens AG 2018.
All rights reserved
Table of contents
1 Introduction.................................................................................................................................................13
1.1 About these instructions.........................................................................................................13
1.2 Compiling personal documents..............................................................................................13
2 Safety information.......................................................................................................................................15
2.1 The 5 safety rules...................................................................................................................15
2.2 Qualified personnel ................................................................................................................15
2.3 Safe handling .........................................................................................................................16
2.4 For use in hazardous Zone 2 or Zone 22...............................................................................17
2.5 Electrostatic sensitive devices ...............................................................................................18
2.6 Processes that generate high levels of electrostatic charge ..................................................19
2.7 Interference immunity.............................................................................................................20
2.8 Influence on the line power supply through a strongly irregular torque..................................20
2.9 Interference voltages when operating the converter ..............................................................20
2.10 Electromagnetic fields when operating electrical power engineering installations.................21
3 Description..................................................................................................................................................23
4 Preparations for use ...................................................................................................................................33
4.1 Safety-related aspects to consider when configuring the plant..............................................33
4.2 Observing the operating mode...............................................................................................33
4.3 Ensuring cooling.....................................................................................................................33
4.4 Configuration of the cooling circuit and coolant supply ..........................................................33
4.4.1 Material selection for the cooling circuit .................................................................................33
4.4.2 Pressures and differential pressures in the cooling circuit .....................................................34
4.4.3 Components and materials of the cooling circuit ...................................................................35
4.4.4 Potential equalization on the cooling circuit components.......................................................35
4.4.5 Power loss..............................................................................................................................36
4.5 Coolant specification ..............................................................................................................36
4.5.1 General coolant requirements................................................................................................36
4.5.2 Coolant specification (M85 "stainless steel version" option) ..................................................38
4.5.3 Inhibitors, anti-freeze, biocides ..............................................................................................39
4.5.4 Cooling capacity derating.......................................................................................................40
4.6 Thermal motor protection .......................................................................................................41
4.7 Thermal motor protection using PTC thermistors (option) .....................................................41
4.8 Interlock circuit for the automatic regreasing system (option)................................................41
4.9 Interlock circuit for anti-condensation heating........................................................................41
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Operating Instructions 02/2019 5
4.10 IM B5 type of construction with support foot ..........................................................................42
4.11 Noise emissions .....................................................................................................................42
4.12 Rotational speed limit values .................................................................................................42
4.13 Complying with speed-torque curve.......................................................................................43
4.14 Voltage and frequency fluctuations during line operation ......................................................43
4.15 Phase synchronization during supply system switching ........................................................43
4.16 System-inherent frequencies .................................................................................................43
4.17 Torsional load of the drive train..............................................................................................44
4.18 Transport................................................................................................................................44
4.18.1 Safety instructions for transport .............................................................................................44
4.18.2 Checking the delivery.............................................................................................................46
4.18.3 Securing the rotor...................................................................................................................47
4.18.4 Lifting and transporting the machine ......................................................................................49
4.19 Storage...................................................................................................................................49
4.19.1 Storing the machine ...............................................................................................................49
4.19.2 Protecting the cooling water circuit during storage ................................................................52
4.19.3 Protection against corrosion...................................................................................................53
4.20 Converter operation ...............................................................................................................53
4.20.1 Converter operation of explosion-proof machines .................................................................53
4.20.2 Supply line configuration ........................................................................................................54
4.20.3 Converter input voltage ..........................................................................................................54
4.20.4 Reducing bearing currents .....................................................................................................55
4.20.5 Insulated bearings when operating the converter ..................................................................56
4.20.6 Converter operation on a grounded network..........................................................................57
5 Assembly ....................................................................................................................................................59
5.1 Safety instructions for mounting.............................................................................................59
5.2 Preparations for installation....................................................................................................60
5.2.1 Requirements for installation..................................................................................................60
5.2.2 Insulation resistance and polarization index ..........................................................................61
5.2.3 Testing the insulation resistance and polarization index........................................................61
5.2.4 Prepare the mating faces (IM B3) ..........................................................................................64
5.2.5 Prepare the mating face for a flange connection ...................................................................64
5.2.6 Prepare the mating face for wall mounting ............................................................................64
5.3 Lift the machine to where it will be installed, and position it...................................................64
5.3.1 Preconditions for correct alignment and secure attachment .................................................64
5.3.2 Checking the load handling attachments ...............................................................................65
5.3.3 Removing the rotor shipping brace ........................................................................................65
5.3.4 Removing the rotor shipping brace from machines in vertical type........................................65
5.3.5 Removing anti-corrosion protection .......................................................................................66
5.3.6 Mounting the output elements................................................................................................66
5.3.7 Lifting and transportation........................................................................................................68
5.3.8 Putting the machine down......................................................................................................69
5.3.9 Draining condensation ...........................................................................................................70
5.3.10 Roughly aligning the machine ................................................................................................71
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6Operating Instructions 02/2019
5.4 Installing the machine ............................................................................................................72
5.4.1 Preconditions for smooth, vibration-free operation ................................................................72
5.4.2 Aligning the machine to the driven machine and mounting (IM B3 / IM B35) ........................72
5.4.3 Aligning the machine to the driven machine and attaching it to it (IM B5) .............................74
5.4.4 Aligning the machine to the driven machine and attaching it to it (IM V1, IM V10) ................75
5.4.5 Axial and radial forces............................................................................................................75
5.5 Connecting the cooling water supply .....................................................................................76
6 Electrical connection...................................................................................................................................79
6.1 Safety instructions for the electrical connection .....................................................................79
6.2 Basic rules..............................................................................................................................79
6.3 Terminal box ..........................................................................................................................80
6.3.1 Terminal box 1XB1621...........................................................................................................81
6.3.2 Terminal box 1XB1631...........................................................................................................81
6.3.3 Terminal box 1XB7730...........................................................................................................82
6.3.4 Terminal box 1XB7731...........................................................................................................83
6.3.5 Terminal box 1XB7740...........................................................................................................83
6.3.6 Terminal box 1XB7750...........................................................................................................84
6.3.7 Rotating the terminal box .......................................................................................................84
6.3.8 Mounting/removing the terminal box ......................................................................................87
6.4 Preparation.............................................................................................................................88
6.4.1 Terminal designation..............................................................................................................88
6.4.2 Selecting cables .....................................................................................................................88
6.4.3 Connecting the grounding conductor .....................................................................................89
6.4.4 Connect metal shield in the terminal box ..............................................................................90
6.4.5 Connection without terminal box ............................................................................................90
6.4.6 Connecting the machine for a specific direction of rotation....................................................91
6.4.7 Undrilled entry plate ...............................................................................................................91
6.5 Inserting and routing the cables .............................................................................................92
6.5.1 Bringing cables into the terminal box 1XB... with sealing insert with break-off ring ...............92
6.5.2 Bringing cables into the terminal box 1XB... with cable gland................................................94
6.5.3 Certified cable entries, thread adapters and sealing plugs ....................................................94
6.5.4 Laying cables .........................................................................................................................95
6.5.5 Connecting cables with cable lugs .........................................................................................95
6.5.6 Connecting cables without cable lugs ....................................................................................96
6.5.7 Use of aluminum conductors..................................................................................................98
6.5.8 Using single-stranded cables .................................................................................................99
6.5.9 Internal equipotential bonding ................................................................................................99
6.5.10 Stepless mating face for the seal in the terminal box cover ..................................................99
6.5.11 Minimum air clearances .......................................................................................................100
6.5.12 Finishing connection work....................................................................................................100
6.6 Connecting the auxiliary circuits...........................................................................................101
6.6.1 Selecting cables ...................................................................................................................101
6.6.2 Bringing cables into the auxiliary terminal box and routing them .........................................101
6.6.3 Intrinsically safe circuits for sensors or probes ....................................................................102
6.6.4 Connect metal shield in the terminal box ............................................................................102
6.6.5 Connecting temperature monitoring for the stator winding ..................................................102
6.6.6 Terminating the connection work (auxiliary circuit) ..............................................................103
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Operating Instructions 02/2019 7
7 Start-up.....................................................................................................................................................105
7.1 Checks to be carried out prior to commissioning ................................................................105
7.2 Converter operation .............................................................................................................107
7.3 Measuring the insulation resistance before commissioning.................................................107
7.4 Greasing the roller bearings prior to commissioning............................................................108
7.5 Setting the automatic regreasing system .............................................................................109
7.6 Setpoint values for monitoring the bearing temperature ......................................................109
7.7 Set values for monitoring the winding temperature..............................................................110
7.8 Test run ................................................................................................................................110
7.9 Switching off.........................................................................................................................112
7.10 Setting the motor parameters at the converter.....................................................................112
7.10.1 Selecting the motor type and motor data in the STARTER program ...................................113
7.10.2 Commissioning at the SINAMICS S/G converter using the AOP30.....................................115
7.10.3 Commissioning at the SINAMICS G120P inverter using the IOP ........................................118
8 Operation..................................................................................................................................................119
8.1 Safety instructions for operation...........................................................................................119
8.2 Operation in hazardous areas of Zone 2..............................................................................121
8.3 Switching on the machine ....................................................................................................122
8.4 Regreasing roller bearings ...................................................................................................122
8.5 Stoppages ............................................................................................................................122
8.5.1 Avoidance of frost and corrosion damage in the cooling system .........................................123
8.5.2 Avoidance of condensation or formation of condensation within the machine.....................123
8.5.3 Avoidance of damage to roller bearings during stoppages ..................................................124
8.5.4 Measurement of the insulation resistance after an extended stoppage...............................124
8.6 Decommissioning the machine ............................................................................................125
8.7 Switching off the water-cooling system ................................................................................125
8.8 Draining the coolant .............................................................................................................125
8.9 Re-commissioning the machine ...........................................................................................126
8.10 Switching on again after an emergency switching-off ..........................................................126
8.11 faults.....................................................................................................................................127
8.11.1 Inspections in the event of faults..........................................................................................127
8.11.2 Electrical faults .....................................................................................................................128
8.11.3 Mechanical faults .................................................................................................................128
8.11.4 Water cooling faults..............................................................................................................130
8.11.5 Roller bearing faults .............................................................................................................131
9 Maintenance .............................................................................................................................................133
9.1 Inspection and maintenance ................................................................................................133
9.1.1 Safety instructions for inspection and maintenance.............................................................133
9.1.2 Measuring the insulation resistance during the course of maintenance work......................135
9.1.3 Inspections in the event of faults..........................................................................................135
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SIMOTICS FD 1MH1
8Operating Instructions 02/2019
9.1.4 First service after installation or repair .................................................................................136
9.1.5 General inspection ...............................................................................................................136
9.1.6 Servicing and maintaining the anti-condensation heating....................................................137
9.1.7 Assessing the roller bearings ...............................................................................................137
9.1.8 Roller bearings with automatic regreasing system...............................................................138
9.1.9 Regreasing intervals and types of grease for operating roller bearings...............................138
9.1.10 Sealing the rolling-contact bearings ("Increased degree of protection" option) ...................142
9.1.11 Cleaning the cooling water ducts .........................................................................................142
9.1.12 Touch up any damaged paintwork .......................................................................................142
9.1.13 Repainting ............................................................................................................................143
9.1.14 Maintaining terminal boxes ..................................................................................................143
9.2 Corrective Maintenance .......................................................................................................144
9.2.1 Prepare servicing work.........................................................................................................145
9.2.2 Screws with preCOTE coating .............................................................................................146
9.2.3 Roller-contact bearings ........................................................................................................146
9.2.3.1 Removing roller bearing .......................................................................................................146
9.2.3.2 Remove V ring .....................................................................................................................147
9.2.3.3 Removing the labyrinth sealing ring .....................................................................................148
9.2.3.4 Installing roller bearings .......................................................................................................149
9.2.3.5 Install the V ring ...................................................................................................................149
9.2.3.6 Installing the V ring ("Increased degree of protection" option) .............................................150
9.2.3.7 Installing the labyrinth sealing ring .......................................................................................151
9.2.4 Seal the motor......................................................................................................................152
10 Spare parts ...............................................................................................................................................155
10.1 Ordering data .......................................................................................................................155
10.2 Ordering spare parts via the Internet ...................................................................................156
10.3 Anti-condensation heating....................................................................................................157
10.4 Housing, stators and rotors ..................................................................................................158
10.5 Roller bearing cartridge at the drive and non-drive end .......................................................160
10.6 Roller bearing cartridge at the drive and non-drive end .......................................................161
10.7 Terminal box 1XB1621.........................................................................................................162
10.8 Terminal box 1XB1631.........................................................................................................164
10.9 Terminal box 1XB7730.........................................................................................................165
10.10 Terminal box 1XB7731.........................................................................................................166
10.11 Terminal box 1XB7740.........................................................................................................167
10.12 Terminal box 1XB7750.........................................................................................................168
10.13 Auxiliary terminal box 1XB9014 ...........................................................................................169
10.14 Auxiliary terminal box 1XB9015 ...........................................................................................170
10.15 1XB9016 auxiliary terminal box............................................................................................171
10.16 Auxiliary terminal box 1XB302. ............................................................................................172
11 Disposal....................................................................................................................................................173
11.1 RoHS - restricting the use of certain hazardous substances ...............................................173
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Operating Instructions 02/2019 9
11.2 Information according to Article 33 of the REACH regulation ..............................................173
11.3 Preparing for disassembly....................................................................................................174
11.4 Dismantling the machine......................................................................................................174
11.5 Disposal of components.......................................................................................................174
A Service and Support .................................................................................................................................177
B Technical data and drawings....................................................................................................................179
B.1 Tightening torques for screw and bolt connections..............................................................179
C Quality documents....................................................................................................................................181
Index.........................................................................................................................................................183
Tables
Table 3-1 Machine design ..........................................................................................................................23
Table 3-2 Machine design with type of protection Ex ec .............................................................................24
Table 3-3 Data on the rating plate...............................................................................................................27
Table 3-4 Rolling-contact bearing variants..................................................................................................29
Table 4-1 Materials and components of a cooling circuit ............................................................................35
Table 4-2 Substances that can destroy the cooling system ........................................................................37
Table 4-3 Overview and application of coolant additives ............................................................................39
Table 5-1 Stator winding insulation resistance at 40° C..............................................................................62
Table 5-2 Permissible deviations for aligning the machine with flexible coupling .......................................73
Table 6-1 Terminal designations using the 1U1-1 as an example ..............................................................88
Table 6-2 Connection technology (with cable lug / connection without cable lug) ......................................92
Table 6-3 Cable entry plate versions...........................................................................................................94
Table 6-4 Minimum air clearance dependent on rms value of the alternating voltage Urms .......................100
Table 7-1 Set values for monitoring the bearing temperatures before commissioning .............................109
Table 7-2 Set values for monitoring the bearing temperatures .................................................................109
Table 7-3 Set value for commissioning .....................................................................................................110
Table 7-4 Set values during normal operation...........................................................................................110
Table 8-1 Electrical faults .....................................................................................................................128
Table 8-2 Mechanical faults.......................................................................................................................128
Table 8-3 Cooling system faults ...........................................................................................................130
Table 8-4 Roller bearing faults .............................................................................................................131
Table 9-1 Checks after assembly or repair ...............................................................................................136
Table 9-2 Checks that have to be performed during the general inspection.............................................136
Table 9-3 Criteria for selecting rolling bearing greases.............................................................................139
Table 9-4 Rolling bearing greases for vertical and horizontal types of construction ................................140
Table 9-5 Alternative greases with NLGI class 2 for motors of horizontal construction ............................140
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SIMOTICS FD 1MH1
10 Operating Instructions 02/2019
Table 10-1 Spare parts for housing, stators and rotors...............................................................................158
Table 10-2 Spare parts for the bearing cartridge at the drive end and non-drive end.................................160
Table 10-3 Spare parts for the bearing cartridge at the drive end and non-drive end.................................161
Table 10-4 Terminal box 1XB1621 spare parts...........................................................................................162
Table 10-5 Additional spare parts................................................................................................................163
Table 10-6 Additional spare parts for terminal box 1XB1631 with split cable entry.....................................164
Table 10-7 Main terminal box 1XB7730 spare parts ...................................................................................165
Table 10-8 Additional spare parts................................................................................................................165
Table 10-9 Main terminal box 1XB7731 spare parts ...................................................................................166
Table 10-10 Additional spare parts................................................................................................................166
Table 10-11 Main terminal box 1XB7740 spare parts ...................................................................................167
Table 10-12 Additional spare parts................................................................................................................167
Table 10-13 Terminal box 1XB7750..............................................................................................................168
Table B-1 Tightening torques for bolted connections with a tolerance of ±10%........................................179
Figures
Figure 3-1 Schematic of the rating plate.......................................................................................................26
Figure 4-1 Axial fastening of the rotor...........................................................................................................48
Figure 4-2 Schematic representation of a single drive .................................................................................56
Figure 4-3 Schematic representation of a tandem drive...............................................................................57
Figure 5-1 Balancing type on the drive-end side ..........................................................................................66
Figure 5-2 Condensation water drain for vertical mounting..........................................................................70
Figure 5-3 Condensation water drain for horizontal mounting......................................................................71
Figure 5-4 Schematic diagram: Aligning the machine to the driven machine...............................................73
Figure 5-5 Standard coolant connections and coolant drain hole ................................................................76
Figure 6-1 Water drip loop............................................................................................................................80
Figure 6-2 Terminal box 1XB1621................................................................................................................81
Figure 6-3 Terminal box 1XB1631................................................................................................................81
Figure 6-4 Terminal box 1XB7730................................................................................................................82
Figure 6-5 Terminal box 1XB7731................................................................................................................83
Figure 6-6 Terminal box 1XB7740................................................................................................................83
Figure 6-7 Terminal box 1XB7750................................................................................................................84
Figure 6-8 Strain relief device and sealing insert..........................................................................................93
Figure 6-9 Connection with cable lug and fixing screw (schematic diagram)...............................................95
Figure 6-10 Connection using terminal clamps (schematic diagram).............................................................97
Figure 7-1 Selecting a motor type...............................................................................................................113
Figure 7-2 Entering the motor data.............................................................................................................114
Figure 9-1 Remove the V ring.....................................................................................................................147
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Operating Instructions 02/2019 11
Figure 9-2 Disassembling the labyrinth sealing ring (schematic diagram) .................................................148
Figure 9-3 Install the V ring.........................................................................................................................150
Figure 9-4 Roller-contact bearing with grease chamber (schematic diagram) ...........................................151
Figure 9-5 Position the set screws for the labyrinth sealing ring on the outer bearing cover .....................152
Figure 10-1 Housing, stators and rotors .......................................................................................................158
Figure 10-2 Bearing cartridge at the drive end and non-drive end ...............................................................160
Figure 10-3 Bearing cartridge at the drive end and non-drive end ...............................................................161
Figure 10-4 Terminal box 1XB1621 with standard cable entry.....................................................................162
Figure 10-5 Two-part cable entry..................................................................................................................162
Figure 10-6 Terminal box 1XB1631..............................................................................................................164
Figure 10-7 Main terminal box 1XB7730 ......................................................................................................165
Figure 10-8 Main terminal box 1XB7731 ......................................................................................................166
Figure 10-9 Main terminal box 1XB7740 ......................................................................................................167
Figure 10-10 Terminal box 1XB7750 with standard cable entry.....................................................................168
Figure 10-11 Auxiliary terminal box 1XB9014 .............................................................................................169
Figure 10-12 Auxiliary terminal box 1XB9015 .............................................................................................170
Figure 10-13 1XB9016 auxiliary terminal box ...............................................................................................171
Figure 10-14 Auxiliary terminal box 1XB302. .................................................................................................172
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SIMOTICS FD 1MH1
12 Operating Instructions 02/2019
Introduction 1
In the following text, the motor is referred to as "electrical machine" – or abbreviated, just
"machine".
1.1 About these instructions
These instructions describe the machine and explain how to handle it, from initial delivery to
final disposal of the equipment. Keep these instructions for later use.
Read these operating instructions before you handle the machine and follow the instructions to
become familiar with its design and operating principles and thus ensure safe, problem-free
machine operation and long service life.
Safety instructions and handling-related warning notes are provided in these instructions.
When carrying out any activity at or with the machine, carefully comply with all of these notes
for your own safety, to protect other people and to avoid material damage.
Please contact the Service Center (Page 177) if you have any suggestions on how to improve
this document.
Text format features
You can find the following text format features in these instructions:
1. Handling instructions are always formatted as a numbered list. Always perform the steps in
the order given.
● Lists are formatted as bulleted lists.
– Lists on the second level are hyphenated.
Note
The note provides you with additional information about the product itself, handling the product
- and the relevant documentation.
1.2 Compiling personal documents
On the Internet pages in Industry Online Support you have the possibility of compiling personal
documents using the function Documentation (https://
support.industry.siemens.com/My/ww/en/documentation)
Using the "Documentation" function, from Product Support manuals, you can compile your own
"Documentation". However, you can also include other Product Support content such as FAQs
or characteristics in the documentation that you compile.
SIMOTICS FD 1MH1
Operating Instructions 02/2019 13
In the "Documentation" function, you have the option of creating your own compiled documents
in your own structure and managing them. You can delete or shift individual chapters or topics.
Further, using the note function you can import your own content. The compiled
"documentation" can be exported as PDF, for example.
Using the "Documentation" function, you can efficiently compile your own plant or system
documentation. The "Documentation" compiled in a specific language can also be
automatically exported in one of the other available languages.
The full functionality is only available for registered users.
Introduction
1.2 Compiling personal documents
SIMOTICS FD 1MH1
14 Operating Instructions 02/2019
Safety information 2
This machine has been designed, built and tested in accordance with Directive 2014/34/EU
("Explosion Protection Directive") and is intended for use in industrial plants with a potentially
explosive atmosphere. Commissioning the machine in hazardous zones is absolutely
prohibited until conformance with these guidelines has been proven based on the appropriate
certificate.
Only commission the machine if it has been absolutely confirmed that the plant or system is in
full conformance with the valid directive.
Please observe the country-specific regulations when using the machine outside the European
Community.
2.1 The 5 safety rules
For your own personal safety and to prevent material damage when carrying out any work,
always observe the safety-relevant instructions and the following five safety rules according to
EN 50110‑1 "Working in a voltage-free state". Apply the five safety rules in the sequence stated
before starting work.
5 safety rules
1. Disconnect the system.
Also disconnect the auxiliary circuits, for example, anti-condensation heating.
2. Secure against reconnection.
3. Verify absence of operating voltage.
4. Ground and short-circuit.
5. Provide protection against adjacent live parts.
To energize the system, apply the measures in reverse order.
2.2 Qualified personnel
All work at the machine must be carried out by qualified personnel only. For the purpose of this
documentation, qualified personnel is taken to mean people who fulfill the following
requirements:
● Through appropriate training and experience, they are able to recognize and avoid risks and
potential dangers in their particular field of activity.
● They have been instructed to carry out work on the machine by the appropriate person
responsible.
SIMOTICS FD 1MH1
Operating Instructions 02/2019 15
2.3 Safe handling
Workplace safety depends on the attentiveness, care, and common sense of the personnel
who install, operate, and maintain the machine. In addition to the safety measures cited, as a
matter of principle, the use of caution is necessary when you are near the machine. Always pay
attention to your safety.
Also observe the following to prevent accidents:
● General safety regulations applicable in the country where the machine is deployed.
● Manufacturer-specific and application-specific regulations
● Special agreements made with the operator
● Separate safety instructions supplied with the machine
● Safety symbols and instructions on the machine and its packaging
Danger as a result of stationary parts under voltage (live parts)
Live parts represent a hazard. Touch protection against active (live) parts is no longer
guaranteed if covers are removed. The minimum clearance and creepage distances may be
violated when coming close to live parts. Touching or coming close to them can result in death,
serious injury or material damage.
● Ensure that all live parts are suitably covered.
● Switch off and disconnect the machine first if you want to remove covers. Observe the "5
safety rules".
Risk of injury due to rotating parts
Rotating parts are dangerous. Touch protection against rotating parts is no longer guaranteed
if covers are removed. Touching rotating parts can result in death, serious injury or material
damage.
● Ensure that all rotating parts are reliably covered.
● Switch off and disconnect the machine first if you want to remove covers. Observe the "5
safety rules".
● Only remove covers when the rotating parts have come to a complete standstill.
Risk of burns due to hot surfaces
Individual machine parts can become hot in operation. Burns can result when coming into
contact with these parts.
● Never touch machine parts during operation.
● Allow the machine to cool before starting work on the machine.
● Check the temperature of parts before touching them. If required, wear suitable protective
equipment.
Safety information
2.3 Safe handling
SIMOTICS FD 1MH1
16 Operating Instructions 02/2019
Health hazard due to chemical substances
Chemical substances required for the setup, operation and maintenance of machines can
present a health risk.
● Observe the product information provided by the manufacturer.
Flammable substances hazard
Chemical substances required for the setup, operation and maintenance of machines may be
flammable. These substances can ignite if handled incorrectly. They can cause burns and
property damage.
● Observe the product information provided by the manufacturer.
See also
The 5 safety rules (Page 15)
Noise emissions
During operation, the machine's noise emission levels can exceed those permitted at the
workplace, which can cause hearing damage.
● Ensure that nobody is in the area of increased noise emissions during machine operation.
● Take steps to reduce noise so that the machine can be operated safely within your system.
The following measures may help to reduce noise.
– Covers
– Noise insulation
– Hearing protection measures
2.4 For use in hazardous Zone 2 or Zone 22
Electrical systems in hazardous areas must be assembled, installed, and operated by the
applicable responsible persons in accordance with the applicable rules and regulations.
Note
The basic requirements relating to electrical systems and their operation in hazardous areas
are described, for instance, in EU Directive 1999/92/EC as well as in IEC / EN 60079-14.
Safety information
2.4 For use in hazardous Zone 2 or Zone 22
SIMOTICS FD 1MH1
Operating Instructions 02/2019 17
Ignition hazards
The operating company – together with the responsible authorities – must fully evaluate the
operational risks, the local operating conditions and the monitoring methods that are required.
It is essential that the operating company complies with the necessary measures. Regarding
this topic, the machine manufacturer cannot provide any generally applicable
recommendations. Please observe the information in these operating instructions.
Note
You can find basic information on assessing ignition hazards caused by electrical equipment
and their operation in hazardous zones in the 2014/34/EU and 1999/92/EC directives – as well
as in the series of IEC / EN 60079 standards, for example.
If a third-party certification is available for the machine, then carefully comply with the technical
data defined in it and any special conditions.
The certificate must be available before commissioning.
2.5 Electrostatic sensitive devices
Material damage due to electrostatic discharge
Electronic modules contain components that can be destroyed by electrostatic discharge.
These components can be damaged or destroyed if they are not handled correctly. To protect
equipment against damage, follow the instructions given below.
● Only touch electronic modules if you absolutely have to work on them.
● The body of the person concerned must have been electrostatically discharged and
grounded immediately before any electronic modules are touched.
● Electronic modules should not be brought into contact with electrically insulating materials,
such as:
– Plastic film
– Plastic parts
– Insulating table supports
– Clothing made of synthetic fibers
● Always place electrostatic sensitive devices on conductive bases.
● Always pack, store and transport electronic modules or components in conductive
packaging, such as:
– Metallized plastic or metal containers
– Conductive foam material
– Domestic aluminum foil
Safety information
2.5 Electrostatic sensitive devices
SIMOTICS FD 1MH1
18 Operating Instructions 02/2019
The necessary ESD protective measures for electrostatic sensitive devices are illustrated once
again in the following drawings:
6HDWLQJSRVLWLRQ6WDQGLQJSRVLWLRQ6WDQGLQJVHDWLQJSRVLWLRQEEDFDIIIIIDFFHGGHG
a = conductive floor surfaceb = ESD table c = ESD shoes
d = ESD overall e = ESD wristband f = cabinet ground connection
Risk of explosion due to electrostatic discharge
Electrostatic discharge poses a potential ignition source. Dangerous electrostatic charges can
occur, for example as a result of mechanical friction, flowing air that contains particles - or
persons that are not appropriately grounded, e.g. when carrying out maintenance or cleaning
work.
In an explosive atmosphere, there is a risk of an explosion. This can result in death, serious
injury or material damage.
● Avoid carrying out work specified above on non-metallic parts, e.g. foam rubber for noise
dampeners/attenuators.
● Please comply with ESD protective measures.
2.6 Processes that generate high levels of electrostatic charge
Processes that generate high levels of electrostatic charge
Processes that generate high levels of electrostatic charge, which are far higher than those
generated through manual rubbing, include the following:
● Operation of high-voltage electrodes and ionizers
● Presence of high-speed particles on surfaces, e.g. sprayed charges (electron and ion flows)
in electrostatic coating processes
● Pneumatically conveyed dusts and bulk goods
● Flowing or hydraulically conveyed liquids and drops
● Belts, brushes and foils etc. moved by machines
Risk of explosion as a result of processes with high levels of electrostatic charging
Processes with high levels of electrostatic charging can result in propagating brush discharge/
brushing discharge and explosion
Safety information
2.6 Processes that generate high levels of electrostatic charge
SIMOTICS FD 1MH1
Operating Instructions 02/2019 19
This can result in death, serious injury or material damage.
● Avoid all of these processes in areas where there is risk of gas and dust explosions at non-
metallic exposed components, e.g. paint finishes. These discharge types are not addressed
in current standards.
● The non-metallic exposed components, e.g. paint finishes are subject to an electrostatic
suitability test in the factory. When supplied, the motor has its original paint finish.
Use the tested, original paint when repainting or touching up. It is possible to use a paint that
has not been tested by Siemens, which is however suitable from an electrostatic
perspective. The operating company is responsible for carrying out an electrostatic test of
the complete system.
2.7 Interference immunity
By selecting suitable signal cables and evaluation units, ensure that the interference immunity
of the machine is not diminished.
2.8 Influence on the line power supply through a strongly irregular torque
A strongly irregular torque, for example with the drive of a reciprocating motor, forces a non-
sinusoidal motor current. The emerging harmonics can have an impermissible influence on the
line power supply via the connection lines.
2.9 Interference voltages when operating the converter
Interference voltages when operating the converter
When a converter is in operation, the emitted interference varies in strength depending on the
converter (manufacturer, type, interference suppression measures undertaken). On machines
with integrated sensors (e.g. PTC thermistors), interference voltages caused by the converter
may occur on the sensor lead. This can cause faults which can result in eventual or immediate
death, serious injury or material damage.
● Comply with the EMC information provided by the manufacturer of the converter. This is how
you prevent the limit values stipulated by IEC/EN 61000-6-3 for the drive system (consisting
of the machine and converter) from being exceeded.
● You must put appropriate EMC measures in place.
Safety information
2.7 Interference immunity
SIMOTICS FD 1MH1
20 Operating Instructions 02/2019
2.10 Electromagnetic fields when operating electrical power engineering
installations
Electrical power equipment generate electromagnetic fields during operation. Potentially lethal
malfunctions can occur in medical implants, e.g. pacemakers, in the vicinity of electrical power
equipment. Data may be lost on magnetic or electronic data carriers.
● Protect the personnel working in the plant by taking appropriate measures, such as erecting
identifying markings, safety barriers and warning signs and giving safety talks.
● Observe the nationally applicable health and safety regulations.
● It is forbidden for people with pacemakers to be close to the machine.
● Do not carry any magnetic or electronic data media.
Safety information
2.10 Electromagnetic fields when operating electrical power engineering installations
SIMOTICS FD 1MH1
Operating Instructions 02/2019 21
Safety information
2.10 Electromagnetic fields when operating electrical power engineering installations
SIMOTICS FD 1MH1
22 Operating Instructions 02/2019
Description 3
Applications
This electrical machine has been designed for a wide range of drive and energy conversion
applications. The machines are characterized by extreme ruggedness, long service life, and
overall reliability. They are also highly versatile, allowing them to be tailored to specific
functions.
Details of the supplied machine and permissible operating conditions can be found in this
documentation.
The machine was designed in accordance with the ordering party's specification and may only
be used for the contractually agreed purpose. The permissible operating conditions are
specified on the rating plate. The technical data are described in the catalog.
Type of protection Ex ec
This machine has type of protection Ex ec according to IEC / EN 60079-7. It can therefore be
operated in hazardous areas of Zone 2 according to IEC / EN 60079‑10-1.
WARNING
Explosion hazard
This machine is not designed for use in areas at risk of dust explosion or in areas where an
explosion hazard exists due to hybrid mixtures. An explosion can occur if the machine is
operated in these areas. This can result in death, serious injury or material damage.
● Never operate this machine in the presence of explosive dust or in areas where an
explosion hazard exists due to hybrid mixtures.
Machine design
The regulations and standards used as the basis to design and test this machine are stamped
on the rating plate.
The machine design basically complies with the subsequent standards. Please refer to the EU
Declaration of Conformity for the versions of the harmonized standards referenced.
Table 3-1 Machine design
Feature Standard
Rating and performance IEC/EN 60034‑1
Degree of protection IEC/EN 60034‑5
Cooling IEC/EN 60034‑6
Type of construction IEC/EN 60034‑7
SIMOTICS FD 1MH1
Operating Instructions 02/2019 23
Feature Standard
Terminal markings and direction of rotation IEC/EN 60034‑8
Noise emission IEC/EN 60034‑9
Starting characteristics of rotating electrical machines * IEC/EN 60034‑12
Vibration severity grades IEC/EN 60034‑14
Efficiency classification of three-phase squirrel-cage induction motors ** IEC/EN 60034-30-1
Vibration limits DIN ISO 10816-3
* For machines in line operation only
** Exception: Pole-changing motors
See also
Quality documents (Page 181)
The following standards additionally apply for explosion-proof machines:
Table 3-2 Machine design with type of protection Ex ec
Feature Standard
Type of protection Ex ec ①IEC/EN 60079‑0
IEC / EN 60079-7
① Optional (depending on order)
Comparison of IEC and GOST standards
The IEC/EN standards correspond to the following GOST standards.
IEC/EN GOST
IEC/EN 60034-1 GOST R IEC 60034-1
IEC/EN 60034-5 GOST R IEC 60034-5
IEC/EN 60034-6 GOST R IEC 60034-6
IEC/EN 60034-7 GOST R IEC 60034-7
IEC/EN 60034-8 GOST R IEC 60034-8
IEC/EN 60034-9 GOST R IEC 60034-9
IEC/EN 60034-12 GOST R IEC 60034-12
IEC/EN 60034-14 GOST R IEC 60034-14
This machine has been designed and built in accordance with Directive 2014/34/EU and
Customs Union Technical Regulation "On safety of equipment intended for use in explosive
atmospheres" (TR CU 012/2011) and is intended for use in industrial plants with potentially
explosive atmospheres.
The IEC/EN standards correspond to the following GOST standards.
IEC/EN GOST
IEC/EN 60079-0 GOST R IEC 60079-0
IEC/EN 60079-2 GOST IEC 60079-2
Description
SIMOTICS FD 1MH1
24 Operating Instructions 02/2019
IEC/EN 60079-7 GOST R IEC 60079-7
IEC/EN 60079-10 GOST IEC 60079-10
IEC/EN 60079-14 GOST IEC 60079-14
Ex marking for type of protection Ex ec IIC T3 Gc
II 3 G Ex ec IIC T3 Gc
① ② ③ ④ ⑤ ⑥ ⑦ ⑧ ⑨ ⑩
AA87 2 Ex nA IIC T3 Gc X
① ⑪ ② ⑫ ⑥ ⑦ ⑧ ⑨ ⑩ ⑬
①CE- or EAC marking
②Code for prevention of explosions
③Equipment group: II not for mining, but other hazardous zones
④Device category: 3 for infrequent, short-term danger
⑤Atmosphere: G for gas
⑥Explosion protection: International
⑦Type of protection: "ec"
⑧Explosion group: IIC for acetylene
⑨Temperature Class: T3 for maximum surface temperature 200 °C
⑩Device protection level: Gc for an extended level of protection in hazardous zones with
explosive gas mixtures
⑪Identification number or name of nominated testing agency
⑫Zone 2
⑬"X" special conditions
Ex marking for type of protection Ex ec IIB T3 Gc
II 3 G Ex ec IIB T3 Gc
①②③④⑤⑥⑦⑧⑨⑩
AA87 2 Ex nA IIB T3 Gc X
① ⑪ ② ⑫ ⑥ ⑦ ⑧ ⑨ ⑩ ⑬
Description
SIMOTICS FD 1MH1
Operating Instructions 02/2019 25
①CE- or EAC marking
②Code for prevention of explosions
③Equipment group: II not for mining, but other hazardous zones
④Device category: 3 for infrequent, short-term danger
⑤Atmosphere: G for gas
⑥Explosion protection: International
⑦Type of protection: "ec"
⑧Explosion group: IIB for ethylene
⑨Temperature Class: T3 for maximum surface temperature 200 °C
⑩Device protection level: Gc for an extended level of protection in hazardous zones with
explosive gas mixtures
⑪Identification number or name of nominated testing agency
⑫Zone 2
⑬"X" special conditions
Rating plate
The rating plate shows the identification data and the most important technical data. The data
on the rating plate and the contractual agreements define the limits of proper usage.
'(:
RRRR
SIEMENS
Figure 3-1 Schematic of the rating plate
Description
SIMOTICS FD 1MH1
26 Operating Instructions 02/2019
Table 3-3 Data on the rating plate
Item Description Item Description
(1) Type of motor (15) Rated power [kW or HP]
(2) Order number (16) Rated efficiency factor
(3) Identifier of the motor series (17) Rated speed [rpm]
(4) Serial number (18) Rated frequency [Hz]
(5) Weight (19) Efficiency class (IE code) or efficiency ac‐
cording to IEEE112B or empty
(6) Degree of protection (20) Efficiency according to IEC/EN 60034-2-1
or current at service factor power
(7) Type of construction (21) Motor design (converter or mains motor)
(8) Permissible ambient temperature range (22) Line voltage/frequency
(9) Thermal class of the insulation system (23) Optional additional data (e.g. service fac‐
tor, design and code letter, amount of cool‐
ing water and intake temperature, etc.)
(10) Thermal class of the utilization (24) Country of manufacture and location
(11) Maximum speed [rpm] (25) Certification mark for UL/CSA + file number
(optional)
(12) Standards (26) Certificate number(s) for Ex motors for
Zone 2 (optional)
(13) Rated voltage [V] and connections (27) Direction of rotation
(14) Rated current [A] (28) Data matrix code (order number and serial
number)
Relevant directives
The following directives are relevant for the SIMOTICS motor series.
European low-voltage directive
The SIMOTICS motor series complies with the requirements of the low-voltage directive
2014/35/EU.
Eurasian Conformity
The SIMOTICS motor series complies with the requirements of the Russia/Belarus/
Kazakhstan customs union (EAC).
Underwriters Laboratories
The SIMOTICS motor series generally complies with UL and cUL requirements as component
of motor applications - and is correspondingly listed. Specifically developed motors and
functions are the exceptions in this case. Carefully observe the content of the quotation, and
that there is a cUL-marking on the rating plate.
Quality management system
Siemens AG employs a quality management system that meets the requirements of ISO 9001
and ISO 14001.
Description
SIMOTICS FD 1MH1
Operating Instructions 02/2019 27
Certificates that can be downloaded
You can download certificates for the SIMOTICS motor series at the following link:
Certificates (https://support.industry.siemens.com/cs/ww/en/ps/13358/cert)
The following directives are not relevant
● European EMC directive: The products are not considered as devices in the sense of the
directive.
● European Machinery Directive: However, the use of the products in a typical machine
application has been fully assessed for compliance with the main regulations in this directive
concerning health and safety.
● China Compulsory Certification (CCC): The SIMOTICS motor series does not fall under the
area of application.
Rotors
The rotor assembly is pressed onto the shaft together with the cage winding. The drive end of
the shaft usually has a cylindrical shaft end. Dependent on the design, a second shaft end may
be located at the non-drive end.
Drive
The motor speed is controlled using a converter. It has been optimized for operation with
SINAMICS low-voltage converters.
Other converters must comply with certain requirements: You can find more information in the
catalog or in the engineering documentation.
Line operation
The motor is supplied from the line system.
NOTICE
Destruction of the machine when operated directly from the line supply
The machine will be destroyed if it is directly connected to the line supply. Only operate the
machine using a converter.
NOTICE
Machine damage for operation on the converter
If you connect the machine to a converter, the machine can be damaged. Operate the
machine only on the electrical supply system.
Description
SIMOTICS FD 1MH1
28 Operating Instructions 02/2019
Cooling
The cooling system is designed as a closed, internal cooling circuit. The heat lost from the
machine is dissipated partially via heat conduction and partially via the cooling air at the cooling
water flowing through the cooling pipes. A shaft-mounted fan ensures circulation of the cooling
air.
Degree of protection
The machine is available with degree of protection IP55.
Rolling-contact bearings
The machines are equipped with different types of rolling-contact bearings depending on the
version and the operating conditions described in the order. The different types are listed on the
lubricant plate of the machine. In converter operation an insulated bearing is usually installed
on the non-drive end. The following rolling-contact bearing variants are available:
Table 3-4 Rolling-contact bearing variants
Version Rolling-contact bearing
Horizontal type of construction,
coupling output
● Drive end: Deep-groove ball bearing as a fixed bearing
● Non-drive end: Deep-groove ball bearing as a floating bearing
with axial compression springs
Horizontal type of construction,
for increased transverse forces
e.g. in the case of belt coupling
● Drive end: Cylindrical-roller bearing as a floating bearing
● Non-drive end: Deep-groove ball bearing as a fixed bearing
Vertical type of construction,
shaft height 315, coupling output
● Drive end: Deep-groove ball bearing as a fixed bearing
● Non-drive end: Deep-groove ball bearing as a floating bearing
with axial compression springs
Vertical type of construction,
shaft height 355 ... 450
● Drive end: Pairing of angular-contact ball bearing / deep-groove
ball bearing as a fixed bearing
● Non-drive end: Deep-groove ball bearing as a floating bearing
with axial compression springs
The standard version of the machine is not suitable for belt couplings. This can result in damage
to the machine.
Automatic regreasing system (option)
The roller bearings are optionally equipped with an automatic regreasing system. The roller
bearings are supplied with new grease portions by the regreasing system in parameterized
time intervals.
Description
SIMOTICS FD 1MH1
Operating Instructions 02/2019 29
Rolling-contact bearing design for "Increased degree of protection" (option)
Improved sealing of the bearing units to prevent dust and water from getting in can be achieved
by positioning a grease chamber ahead of the actual bearing unit. Although the same grease
is used in both cases for reasons of convenience, a distinction is made here between
"lubricating grease" and "sealing grease" because of their different functions.
Layout
The spent lubricating grease collects in the space between the bearing housing and the outer
bearing cap. The latter also forms the sealing grease chamber with the labyrinth sealing ring
(optional). The second lubricating nipple containing the grease duct for pressing in the sealing
grease is also located in the outer bearing cap. The chamber is sealed off from the space where
the lubricating grease collects by a V-ring or a V-ring and felt ring combination which prevents
the sealing grease in the chamber from penetrating into the lubricating grease collecting space.
During operation, the sealing grease in the chamber slowly runs out via the labyrinth and seals
it, additionally removing dust from inside and around the outside of the labyrinth ring.
Terminal box
Depending on the machine design, the following terminal boxes are generally used for
connecting the cables:
Terminal box Comment Application
GT640 Only for machines on the
power supply
Not for explosion-proof versions
1XB1621
1XB1631 2 × 1XB1631
1XB7730 Not for IEC explosion-proof versions
1XB7731 Not for IEC explosion-proof versions
1XB7740 2 × 1XB7740 Not for IEC explosion-proof versions
1XB7750
Depending on the terminal box and version, it is possible to rotate the terminal box through ±90°
in accordance with the connection direction. The implementation on the other motor side is
possible only with the support of the Service Center. If you wish to retrofit using a different
terminal box at a later date, please contact the Service Center (Page 177).
See also
Rotating the terminal box (Page 84)
Terminal box (Page 80)
Note
You can find more information in Chapter 2 of catalog D81.8.
Description
SIMOTICS FD 1MH1
30 Operating Instructions 02/2019
Supplementary devices
Depending on the order, various supplementary devices can be installed or mounted. These
include sensors for bearing temperature monitoring or winding monitoring, for example.
Anti-condensation heating (option)
The machine is fitted with anti-condensation heating. The connection data is listed on an
additional plate on the machine.
Description
SIMOTICS FD 1MH1
Operating Instructions 02/2019 31
Description
SIMOTICS FD 1MH1
32 Operating Instructions 02/2019
Preparations for use 4
Good planning and preparation of machine applications are essential in terms of keeping
installation simple and avoiding errors, ensuring safe operation, and allowing access to the
machine for servicing and corrective maintenance.
This chapter outlines what you need to consider when configuring your plant in relation to this
machine and the preparations you need to make before the machine is delivered.
4.1 Safety-related aspects to consider when configuring the plant
A number of residual risks are associated with the machine. These are described in the chapter
titled "Safety information" (Page 15) and in related sections.
Take appropriate safety precautions (covers, barriers, markings, etc.) to ensure the machine is
operated safely within your plant.
4.2 Observing the operating mode
Observe the machine's operating mode. Use a suitable control system to prevent overspeeds,
thus protecting the machine from damage.
4.3 Ensuring cooling
Ensure that the machine and/or any mounted external fan unit is sufficiently cooled by the
cooling air flow at the installation site:
● The cooling air can flow in and out freely. The full air flow provided by the fan is only achieved
if air can freely enter the impeller. Ensure that the required distance in accordance with the
dimensioned drawing is maintained.
● Hot discharged air must not be drawn in again.
● On the vertical design with air intake from above, the air inlets must be protected against the
ingress of foreign bodies and water.
4.4 Configuration of the cooling circuit and coolant supply
4.4.1 Material selection for the cooling circuit
For optimum durability of the cooling system, use a closed or half open cooling circuit in
stainless steel or acrylic butadiene styrene (ABS).
SIMOTICS FD 1MH1
Operating Instructions 02/2019 33
Use either stainless steel or steel (S235JR) for the cooling circuit pipes and fittings.
4.4.2 Pressures and differential pressures in the cooling circuit
The maximum permissible overpressure in the heat sink and thus in the cooling circuit must not
exceed 6 bar.
● If you are using a pump, which reaches more than this maximum pressure, then on the plant
or system side ensure that the maximum pressure is not exceeded.
● The lowest possible differential pressure between the coolant in the supply and return lines
should be selected to allow use of pumps with a flat characteristic. The maximum differential
pressure for a heat sink varies from shaft height to shaft height. Higher pressure differences
significantly increase the risk of cavitation and abrasion.
Machine type Flow rate ± 10 %
[l/min]
Pressure drop for fresh water
[bar]
1LH….-3A…-….
1MH….-3A…-….
40 1.0
1LH….-3B…-….
1MH….-3B…-….
40 1.2
1LH….-4A…-….
1MH….-4A…-….
60 1.1
1LH….-4B.1.-….
1MH….-4B.1.-….
60 1.2
1LH….-4B.3.-….
1MH….-4B.3.-….
60 1.2
1LH….-4B.5.-….
1MH….-4B.5.-….
80 1.2
1LH….-4B.7.-….
1MH….-4B.7.-….
80 1.2
● The pressure drop is dependent on the machine type. The machine type is stamped on the
rating plate.
● If there is a risk of frost, use cooling water with antifreeze suitable for this temperature.
The pressure drop increases when antifreeze is added.
See also
Connecting the cooling water supply (Page 76)
Preparations for use
4.4 Configuration of the cooling circuit and coolant supply
SIMOTICS FD 1MH1
34 Operating Instructions 02/2019
4.4.3 Components and materials of the cooling circuit
The following table lists a wide variety of materials and components which can occur in a
cooling circuit or which are prohibited.
Table 4-1 Materials and components of a cooling circuit
Material Component Remark
Zinc Pipes, valves and fit‐
tings
Do not use any components manufactured out of zinc.
Brass Pipes, valves and fit‐
tings
Can be used in closed cooling circuits with inhibitor.
Copper Pipes, valves and fit‐
tings
Can only be used in closed cooling circuits with inhibitor. Locate an
isolating element, e.g. connecting pipe of the devices, between the
heat sink and copper component.
Steel (e.g. S235JR) Cable Can be used in closed cooling circuits with inhibitors or anti-freeze.
Check for the formation of oxide; to do this, use a sight glass, for
example.
Cast steel, cast iron Pipes, motors Can be used in closed cooling circuits. Use sieves and return flush
filter; for stainless steel cooling systems, use a Fe separator.
High-alloy steel, Group 1
(V2A)
Pipes, valves and fit‐
tings
Can be used for drinking or municipal water with a chloride content
< 250 ppm.
High-alloy steel, Group 2
(V4A)
Pipes, valves and fit‐
tings
Can be used for drinking or municipal water with a chloride content
< 500 ppm.
Installation employing differ‐
ent materials ("mixed instal‐
lation")
Pipes, valves and fit‐
tings
Do not use a mixed installation.
PVC Pipes, valves and fit‐
tings, hoses
Do not use any components manufactured out of PVC.
Hoses Reduce the use of hoses for connecting devices to a minimum. Do
not use any hoses as main connecting line for the complete system.
Recommendation: EPDM hoses with an electrical resistance
> 109 Ω, e.g. "Semperflex FKD" supplied from Semperit or "DEMIT‐
TEL" from PE/EPD, supplied from the Telle company.
Gaskets Pipes, valves and fit‐
tings
Use seals manufactured from fluorinated rubber in accordance with
DIN ISO 1629, AFM34, EPDM (recommended).
Hose connections Transition from pipe to
hose
Fasten the hose connections with bracket clamps in accordance
with EN 14420.
4.4.4 Potential equalization on the cooling circuit components
● Connect an equipotential bonding conductor to all of the components in the cooling system
(motor, converter, piping system, etc.).
● Implement the equipotential bonding using a copper rail or finely stranded copper cable with
the appropriate cable cross-sections. In this way, you suppress electrochemical processes.
Preparations for use
4.4 Configuration of the cooling circuit and coolant supply
SIMOTICS FD 1MH1
Operating Instructions 02/2019 35
4.4.5 Power loss
When dimensioning the cooling system, take into account the power losses as a function of the
flow rate for the rated data.
Machine type Flow rate ± 10 %
[l/min]
Power loss
[kW]
1LH….-3A…-….
1MH….-3A…-….
40
28
1LH….-3B…-….
1MH….-3B…-….
1LH….-4A…-….
1MH….-4A…-….
60
42
1LH….-4B.1.-….
1MH….-4B.1.-….
1LH….-4B.3.-….
1MH….-4B.3.-….
1LH….-4B.5.-….
1MH….-4B.5.-….
80
56
1LH….-4B.7.-….
1MH….-4B.7.-….
Power losses as a function of the flow rate for the rated data.
4.5 Coolant specification
4.5.1 General coolant requirements
The coolant must fulfill the following requirements over the long term. The coolant is based on
filtered drinking/municipal water of the quality specified below.
De-ionized water
Specific conductivity < 30 μS/cm
Evaporation residue < 20 mg/l
NOTICE
High percentage of chloride in drinking water
According to Directive 98/83/EC, drinking water may contain up to 250 mg/l of chloride. This
value is too high for the heat sinks, which may be destroyed if inhibitors are not added.
Use inhibitors if the drinking water has an excessively high chloride percentage.
To better explain the coolant recommendations in this document, some of the problems that
can be encountered if the recommendations are ignored are listed in the table below.
Preparations for use
4.5 Coolant specification
SIMOTICS FD 1MH1
36 Operating Instructions 02/2019
Table 4-2 Substances that can destroy the cooling system
Coolant property or limit value vi‐
olation
Countermeasure
Seawater Do not use seawater.
Water compliant with limit values Use inhibitors/antifreeze with the appropriate concentration. Locate
a pressure relief valve in the cooling circuit.
Entry of oxygen Use a closed cooling circuit. Locate a pressure relief valve in the
cooling circuit.
Use inhibitors/antifreeze with the appropriate concentration.
Chloride Use inhibitors/antifreeze with the appropriate concentration.
Sulfate Dilute the coolant using de-ionized water until the limit value is
reached.
Solids (e.g. sand) Flush the cooling circuit, without converter and motor. Use dirt fil‐
tering equipment, e.g. sieves, fine filters.
Total hardness Use inhibitors/antifreeze with the appropriate concentration.
Conductivity Connect an equipotential bonding conductor to all cooling circuit
components.
Biological contamination Use biocides. Use dirt filtering equipment, e.g. sieves, fine filters.
Oil residue Use inhibitors/antifreeze with the appropriate concentration.
Flush the cooling circuit, without converter and motor.
Mechanical contamination Flush the cooling circuit, without converter and motor. Use dirt fil‐
tering equipment, e.g. sieves, fine filters.
Inadequate equipotential bond‐
ing
Connect an equipotential bonding conductor to all cooling circuit
components.
See also
Inhibitors, anti-freeze, biocides (Page 39)
Cooling water intake temperature
The maximum cooling water intake temperature is 25 °C.
NOTICE
Condensation for an excessively low cooling water intake temperature
If the temperature difference between cooling water and ambient temperature is greater than
5 K, this may result in condensation forming in the machine. This results in material damage.
● Make sure that the condensation can drain away freely.
● Adopt appropriate measures to achieve the required intake temperature of the cooling
water.
● Alternatively, dry the ambient air.
Preparations for use
4.5 Coolant specification
SIMOTICS FD 1MH1
Operating Instructions 02/2019 37
NOTICE
Corrosion due to insufficient cooling water quality
The materials used in the cooler are selected to match the cooling water quality for which the
air-water cooler was ordered. The cooler cannot be simply used without taking any other
measures if other water conditions apply. If the cooling water quality is unsuitable, the air-to-
water heat exchanger may suffer corrosion and fail.
● The chemical composition of the cooling water must comply with the configuration
specifications.
● If the cooling water quality fails to satisfy the quality stated on the order, please contact the
Service Center.
● Please observe the recommended water quality in the operating instructions for the air-
water cooler.
NOTICE
Overheating of the machine as a result of additives in the cooling water
Additives for antifreeze or corrosion protection can have a negative impact on the heat
transporting properties. The machine can overheat.
● Only operate the machine with the contractually agreed cooling water quality.
See also
Service and Support (Page 177)
4.5.2 Coolant specification (M85 "stainless steel version" option)
Drinking or municipal water (option M85: Stainless steel version)
pH value 6.5 ... 9.5
Chloride ions Cl-< 200 mg/l
Sulfate ions SO42- < 240 mg/l
Nitrate ions NO3+< 50 mg/l
Dissolved solids < 340 mg/l
Total hardness < 1.7 mmol/l
Electrical conductivity < 2000 μS/cm
Maximum size of dissolved substances < 0.1 mm
Preparations for use
4.5 Coolant specification
SIMOTICS FD 1MH1
38 Operating Instructions 02/2019
4.5.3 Inhibitors, anti-freeze, biocides
You can use the following anti-freeze, inhibitors and biocides in the stainless steel cooling
circuit:
Table 4-3 Overview and application of coolant additives
Anti-freeze used Please note the following in particular
Inhibitor without anti-
freeze effect
Not necessary Inhibitor, 0.2 ... 0.25 % by volume!
Anti-freeze protection ● Antifrogen N: 20 % < X ≤ 45 %
A 45 % concentration provides frost protection
down to -15 °C.
● Antifrogen L: 25 % < X ≤ 48 %
A 48 % concentration provides frost protection
down to -15 °C.
● Varidos FSK: 20 % < X ≤ 45 %
A 45 % concentration provides frost protection
down to -15 °C.
● With Antifrogen L, for the same
antifreeze protection, a higher
concentration is required then for
Antifrogen N
Biocide* Yes
● Antifrogen N, minimum quantity 20 %
● Antifrogen L, minimum quantity 30 %
● Varidos FSK, minimum quantity 30 %
Cooling circuit with open pressurizer
Antifreeze + biocide* An Antifrogen N antifreeze concentration of >20 %
provides an adequate biocidal effect.
With Antifrogen L and Varidos FSK, 30 % is required
in order to achieve the same effect.
* Effectiveness regarding the growth of microorganisms
Inhibitor without anti-freeze effect
If you use inhibitors without any antifreeze effect, then it is not permissible that there is any
magnesium carbonate in the cooling/water used.
Only use the NALCO TRAC100 inhibitor from the Nalco company in the ratio 0.2 % up to
0.25 %. Control Kits can be ordered from Nalco to check the inhibitor concentration.
Anti-freeze
All antifreeze agents contain corrosion protection inhibitors, which permanently protect the
cooling system against corrosion. You can use the additives listed above as anti-freeze agent:
NOTICE
Corrosive mixture
Top up with antifreeze to comply with the minimum concentration, otherwise a mixture is
obtained that has a corrosive effect. The cooling system can be damaged.
● Never mix inhibitors and anti-freeze.
Preparations for use
4.5 Coolant specification
SIMOTICS FD 1MH1
Operating Instructions 02/2019 39
Biocides
Closed cooling circuits with soft water (°dH > 4) are susceptible to microbes. The risk of
corrosion caused by microbes is virtually non-existent in chlorinated drinking water systems.
No strain of bacteria can survive when the appropriate quantity of anti-freeze is added. The
following microbes can occur:
● Bacteria that cause the formation of slime
● Corrosive bacteria
● Bacteria that cause deposits of iron
The type of bacteria determines the suitability of a biocide. At least one water analysis per
annum (to determine the number of bacterial colonies) is recommended. You can purchase
suitable biocides, for example from Nalco.
Note
Determining the appropriate biocide
The type of bacteria determines the biocide. Antifreeze already has a biocidal effect for the
minimum concentration specified above.
● The manufacturer's recommendations must be followed in regard to the dosage and
compatibility with any inhibitor that might be used.
● Never mix biocides and anti-freeze.
4.5.4 Cooling capacity derating
If you use antifreeze, then observe the cooling capacity derating factor, dependent on the
antifreeze concentration, as listed in the table.
Anti-freeze Concentration Cooling capacity derating factor
Antifrogen N
Varidos FSK
Antifrogen L
20% 0%
25% 0%
30% 0%
35% 2%
40% 4%
45% 5%
Antifrogen N / Varidos FSK ≙ ethylene glycol
Antifrogen L ≙ propylene glycol
Note
Order-specific agreements
Order-specific agreements regarding the cooling water specification can deviate from the
cooling water specification mentioned.
Preparations for use
4.5 Coolant specification
SIMOTICS FD 1MH1
40 Operating Instructions 02/2019
4.6 Thermal motor protection
The machine is equipped with measuring equipment for direct monitoring of the motor
temperature to protect the machine against overload during operation. Plan a corresponding
circuit for monitoring.
4.7 Thermal motor protection using PTC thermistors (option)
The machine is equipped with PTC thermistors for direct monitoring of the motor temperature
to protect the machine against overheating during operation. Plan a corresponding circuit for
monitoring.
4.8 Interlock circuit for the automatic regreasing system (option)
Relubrication is permitted only for a rotating shaft. Consequently, deploy an interlock circuit for
machines with automatic regreasing system to prevent them from operating at machine
standstill.
4.9 Interlock circuit for anti-condensation heating
If the anti-condensation heating is operated while the machine is running, this can increase the
temperatures inside the machine.
● Install an interlock circuit that switches off the anti-condensation heating once the main
machine is switched on.
● Only switch on the anti-condensation heating after the machine has been switched off.
See also
Safety instructions for operation (Page 119)
WARNING
Explosion hazard
If the anti-condensation heating is switched on directly after the machine is switched off, the
temperature class or the maximum surface temperature of the machine can be exceeded.
In an explosive atmosphere, there is a risk of an explosion. This can result in death, serious
injury or material damage.
● Only switch on the anti-condensation heating after the motor has been switched off.
Carefully comply with the data on the anti-condensation heating plate.
Preparations for use
4.6 Thermal motor protection
SIMOTICS FD 1MH1
Operating Instructions 02/2019 41
4.10 IM B5 type of construction with support foot
● For machines, type of construction IM B5, provide an additional support foot at the NDE. The
support foot is not included in the scope of supply.
● Use an appropriately sized support foot with the appropriate rigidity. The support foot must
be able to support the total weight of the machine.
The weight of the machine is stated on the rating plate, data on geometry is shown in the
dimension drawing.
● There is a threaded hole M36 at the bottom of the machine where you can attach the support
foot.
WARNING
Danger if there is no support at the NDE
If the machine has no support at the NDE, the flange cannot hold the weight of the machine.
The machine or machine parts may loosen.
This can result in death, serious injury or material damage.
● Use an appropriately sized support base.
4.11 Noise emissions
Noise emissions
During operation, the machine's noise emission levels can exceed those permitted at the
workplace, which can cause hearing damage.
● Ensure that nobody is in the area of increased noise emissions during machine operation.
● Take steps to reduce noise so that the machine can be operated safely within your system.
The following measures may help to reduce noise.
– Covers
– Noise insulation
– Hearing protection measures
4.12 Rotational speed limit values
Excessive rotational speed can lead to serious damage to the machine. This can result in
death, serious injury, or material damage.
● Avoid operation above the permissible speed by using the appropriate control function.
● Observe the speeds stamped on the rating plate.
Preparations for use
4.10 IM B5 type of construction with support foot
SIMOTICS FD 1MH1
42 Operating Instructions 02/2019
4.13 Complying with speed-torque curve
Risk of explosion if the speed-torque characteristic is exceeded
If the load torque exceeds the speed-torque characteristic, then the temperature class can be
exceeded. An explosion can occur. This can result in death, serious injury or material damage.
● It is not permissible that the values defined by the speed-torque characteristic are exceeded.
● Observe the data on the extra rating plate on the motor.
4.14 Voltage and frequency fluctuations during line operation
Unless otherwise stated on the rating plate, the permissible voltage/frequency fluctuation is
corresponds to Zone B in IEC / EN 60034‑1. Permissible fluctuations that go beyond this are
indicated on the rating plate.
Operate the machine in continuous operation in Zone A. Prolonged operation in Zone B is not
recommended:
● Exceeding the permissible tolerances for voltage and frequency can lead to an
impermissibly high temperature rise of the winding. This can result in long-term damage to
the winding.
● Limit exceptions of this sort with regard to the values that arise, how often, and for how long
they occur.
● Where possible and within a reasonable time take corrective actions such as reducing the
power. In this way you can avoid that the service life of the machine is reduced as a result
of thermal aging.
4.15 Phase synchronization during supply system switching
Damage to the machine may be caused when switching to another supply system with different
phasing.
● The phasing must be synchronized during switching. Use appropriate means to
synchronize the phasing.
4.16 System-inherent frequencies
Excessively high vibration levels and system resonances can damage the machine set.
● Configure and match the system consisting of the foundation and machine set in such a way
that no system resonances can arise and result in the permissible vibration levels being
exceeded.
● The vibration values according to DIN ISO 10816-3 must not be exceeded.
Preparations for use
4.13 Complying with speed-torque curve
SIMOTICS FD 1MH1
Operating Instructions 02/2019 43
4.17 Torsional load of the drive train
In the event of faults in the electrical connection during operation, excessive air gap torques can
lead to additional mechanical torsional load on the line shaft.
Note
The system planner is responsible for the entire drive train.
WARNING
Torsional loadings of the shaft assembly
If the configuration does not correctly recognize the mechanical torsional loadings of the shaft
assembly, this can lead to serious damage to the machine. This can result in death, serious
injury or material damage.
When planning the system, consider the configuration data.
Note
You can find more information in Chapter 2 of catalog D81.8.
4.18 Transport
4.18.1 Safety instructions for transport
Observe the following when carrying out any work on the machine:
● Comply with the general safety instructions
● Comply with the applicable national and sector-specific regulations.
● When using the machine within the European Union, comply with the specifications laid
down in EN 50110‑1 regarding safe operation of electrical equipment.
The information required to correctly attach, lift and transport the machine - such as weight,
center of gravity and attachment points - is provided here:
● Machine dimension drawing and the associated explanations
● Transport data
● Rating plate and lifting plate, if available
● Shipping parts list
● Packaging
Preparations for use
4.17 Torsional load of the drive train
SIMOTICS FD 1MH1
44 Operating Instructions 02/2019
Danger when incorrectly lifting and transporting
Danger of death, serious injury, or substantial material damage caused by tipping or falling
transported goods. Comply with the following safety instructions:
● All work must be performed with due caution and care.
● Comply with any notes in the shipping papers.
● Carefully comply with all of the handling information and markings on the packages
whenever transporting and putting the equipment into storage according to ISO 780.
● Only use suitable and adequately dimensioned lifting equipment, transport equipment and
industrial trucks.
Danger due to incorrect attachment and lifting
● Ensure that suitable lifting equipment is available.
● Only hoist the goods using the designated hoisting points and/or at marked positions. The
attachment points are not dimensioned for additional loads.
● Use suitable strap guiding or spreading devices.
● If not specified otherwise in the transport data, always transport the machine in the position
associated with its specific type of construction.
Danger due to damaged attachment points
● Carefully check the attachment points provided on the machine, e.g. attachment eyes, lifting
lugs or ring bolts for possible damage. Replace any damaged attachment points.
● Before using, carefully ensure that the attachment points are correctly attached.
Bearing damage caused by vibration
Depending on the version, the machine is fitted with a rotor shipping brace. Not using the rotor
shipping brace can cause damage to the bearings if it is jolted or subject to vibration during
transport or storage.
● Always transport the machine with the rotor shipping brace mounted.
● Remove the rotor shipping brace at the latest possible time, e.g. just before attaching the
output elements or just before installing in the plant or system.
● If the customer already has mounted parts, such as a coupling or belt pulley, the bearings
can be damaged during transport. In this case, make sure that the customer uses a rotor
shipping brace.
● Protect the motor against strong radial shocks and vibration when storing, as the rotor
shipping brace cannot completely absorb these forces.
● Do not remove the rotor shipping brace until the machine is in a vertical position.
● If a machine has to be transported in a horizontal position, the rotor must be fixed in position
before the machine is turned onto its side. Vertical machines can be supplied in the
horizontal position from the manufacturing plant.
Preparations for use
4.18 Transport
SIMOTICS FD 1MH1
Operating Instructions 02/2019 45
Danger if the machine falls
The attachment points on the machine are designed for the weight of the machine only. If a
machine set is lifted and transported at a single machine, this can fracture the attachment point.
The machine or machine set may fall. This can result in death, serious injury or material
damage.
● Do not lift machine sets by attaching lifting tackle to the individual machines.
● Use only the equipment provided, e.g. the openings or lugs on the base plates, for
transporting machine sets. Note the maximum capacity of the lifting lug.
Danger when attachment points fracture
At low temperatures, the material of the attachment points can become brittle. When lifting and
transporting, the attachment points can shear off and the motor can fall.
This can result in death, serious injury, or material damage.
● Only lift the machine using the attachment points at temperatures that are not below -20 °C.
● Heat up the attachment points properly beforehand.
4.18.2 Checking the delivery
The components are assembled on an individual basis. When you take receipt of the delivery,
please check immediately whether the scope of the delivery matches up with the
accompanying documents. No claims relating to defects/items missing from the delivery will be
accepted if they are submitted at a later date.
● Report any apparent transport damage to the delivery agent immediately.
● Immediately report any apparent defects/missing components to your contact partner.
These Operating Instructions are part of the scope of delivery; keep them in a location where
they can be easily accessed.
Preparations for use
4.18 Transport
SIMOTICS FD 1MH1
46 Operating Instructions 02/2019
4.18.3 Securing the rotor
Depending on the version, the machine is fitted with a rotor shipping brace. This protects the
bearings against damage due to shock and vibration during transport or storage.
NOTICE
Vibration and shock during transport
Not using the rotor shipping brace can cause damage to the machine if it is jolted during
transport. Material damage can result.
● If the machine is fitted with a rotor shipping brace, this should always be used when
transporting the machine. The rotor shipping brace must be attached during the transport.
● Only remove it before pulling on the output element.
● For machines with a vertical type of construction:
– Do not remove the rotor shipping brace until the machine is in a vertical position.
– If a machine has to be transported in a horizontal position, the rotor must be fixed in
position before the machine is turned onto its side. Vertical machines can be supplied
in the horizontal position from the manufacturing plant.
Preparations for use
4.18 Transport
SIMOTICS FD 1MH1
Operating Instructions 02/2019 47
Alternative rotor bracing
● If you transport the machine after the output element has been pulled on, then you must
axially fix the rotor in another way.
཰཰ཱ
①Sleeve ②Shaft screw and washer
Figure 4-1 Axial fastening of the rotor
Thread in the shaft extension Tightening torque
M20 80 Nm
M24 150 Nm
M30 230 Nm
Tightening torques for other rotor shipping brace types
● The thread in the shaft extension indicates the rotor weight. This indirectly specifies the
required preload force when axially fastening the rotor.
Thread in the shaft extension Preload
M20 20 kN
M24 30 kN
M30 40 kN
Axial preload force for other rotor shipping brace types
Note
Store the rotor locking device
Be sure to store the rotor locking device. It must be remounted for possible disassembly and
transport.
Preparations for use
4.18 Transport
SIMOTICS FD 1MH1
48 Operating Instructions 02/2019
4.18.4 Lifting and transporting the machine
● If adapter flange and adapter plates are also supplied, then lift them and transport these
parts separately. The load suspension equipment for the motor is not rated for lifting the
motor with mounted adapter flange is or adapter plates
● When lifting the machine, refer to the information on the lifting plate or in the technical data:
– Comply with the specified spreading angles.
– Do not exceed the maximum lifting acceleration and lifting speed specified on the lifting
plate. Lift the machine without jerking it.
Acceleration a ≤ 0.4 g (≈ 4 m/s2)
Velocity v ≤ 20 m/min
● Use only the attachment points (eyebolts) that are attached to the stator frame or the
bearing shield.
Note
Place the machine in a secure and raised position
In order to obtain easy and safe access to the underside of the machine, place it in a secure and
raised position.
DANGER
Standing under suspended loads
If the lifting gear or load handling attachments were to fail, the machine could fall. This can
result in death, serious injury or material damage.
● Never remain under or in the immediate vicinity of the machine when it is raised.
4.19 Storage
4.19.1 Storing the machine
You must correctly store the machine if you do not install and use it after it has been delivered.
NOTICE
Bearing seizure damage if incorrectly stored
If storage conditions are inappropriate there is a risk of bearing seizure damage. Resulting
damage can include scoring (brinelling) and corrosion.
● Follow the storage guidelines.
Preparations for use
4.19 Storage
SIMOTICS FD 1MH1
Operating Instructions 02/2019 49
Preconditions and preparations
● Only store goods in undamaged packaging. Unpack the goods if the packaging is damaged.
Correctly store the goods corresponding to the type.
● Repair any damage to the packaging before putting the equipment into storage insofar as
this is necessary to ensure proper storage conditions.
General instructions for storage
Wherever possible, store the machine in a storage room. The place of storage must satisfy the
following general conditions:
● Select a sufficiently sized dry and horizontal place of storage that is above flood level and
free of vibration (veff ≤ 0.2 mm/s).
– The place of storage must be well ventilated as well as free of dust and frost. Provide
protection against extreme weather conditions. Ensure that the temperature remains
stable in the range from 10 °C to 50 °C – or 50 °F to 120 °F. If there is a risk of
condensation, the room temperature should be approx. 10 K above the outside
temperature. The temperature should not fall below ‑20° C.
– The relative humidity of the air should be less than 60%.
– The floor of the place of storage must be sufficiently strong. The maximum permissible
floor loading or storage compartment loading may not be exceeded.
– The ambient air must not contain any harmful gases.
● Protect the machine from shocks and humidity.
● Position machines, devices and crates on pallets, wooden beams or foundations that
protect them against rising damp and water.
● Ensure that the air circulation under the equipment is not impeded.
– Place wooden spacer blocks between the covers and the machine.
– Covers or tarpaulins must not trail on the floor around the machine.
Storing outdoors
When storing the machines outside, the storage location must comply with the following
conditions:
● The ground must be sufficiently strong. Prevent the machine from sinking into the ground.
● Covers or tarpaulins used to protect the equipment against the weather must not make
contact with the surfaces of the equipment. Otherwise air circulation under the stored items
will be prevented.
Preparations for use
4.19 Storage
SIMOTICS FD 1MH1
50 Operating Instructions 02/2019
Protection against humidity
If a dry storage space is not available, protect the machine as follows against humidity:
● Wrap the machine in humidity-absorbent material.
● Wrap the machine in plastic film:
– Place a humidity meter inside the plastic film.
– Place desiccant within the plastic film.
– Pack the machine air-tight.
● Inspect the machine regularly.
NOTICE
Improper storage or transport
Damage to bearings can result from improper storage or transport.
● On machines that have been supplied with a rotor shipping brace, secure the rotor as per
the notes on transportation (Page 47).
● Protect the motor against strong radial shocks and vibration when storing, as the rotor
shipping brace cannot completely absorb these forces.
● If the customer has already mounted parts, such as a coupling or belt pulley, the bearings
can be damaged during transport. In this case, make sure that the customer uses a rotor
locking device.
WARNING
Risk of explosion due to damaged sealing materials
Storing the machine at temperatures that do not fall within the specified limits can damage the
material of the seals and cause them to fail. As a result, a potentially explosive gaseous
atmosphere can enter the machine and be ignited during commissioning. Explosions can
occur. This can result in death, serious injury or material damage.
The materials used are specially designed for the temperature range required by the
customer. Do not store the machine in conditions that lie outside the specified temperature
limits. The relevant temperature limits are specified on the rating plate.
Long-term storage
If you are storing a machine for more than six months, you must check its condition every six
months. Store the machine in accordance with the specifications in Section "Storage
(Page 49)", and if possible, packed.
● Check the motor for damage.
● Carry out any necessary maintenance work.
Preparations for use
4.19 Storage
SIMOTICS FD 1MH1
Operating Instructions 02/2019 51
● Make sure that the storage conditions are such that condensation cannot form in the motor.
● If the machine is not sealed in plastic film, continually and slightly heat the machine, e.g. with
anti-condensation heating (if available), and ensure that the air circulates in the storage
room.
Storage for longer than three months
Lubricate the machine after every two years of storage.
1. Unpack the machine.
2. Remove the rotor shipping brace, if one is being used.
3. When stored for longer than two years, lubricate with twice the grease quantity in
accordance with the lubricant plate. This ensures that the grease is evenly distributed and
covers all surfaces. Corrosion damage is avoided.
NOTICE
Damage to roller bearings
Roller bearings can be damaged when kept in the same or almost the same position.
Every three months, manually rotate the rotor through five revolutions. Make sure that the
resting position of the roller bearings after the rotor has been turned is different from what
it previously had been. Use the feather key as a reference point, if present.
4. Replace the corrosion protection.
5. Reattach the rotor shipping brace, if present.
6. Pack the machine again.
4.19.2 Protecting the cooling water circuit during storage
When supplied, the machine is not filled with cooling water.
Protecting the cooling circuit against corrosion
You protect the cooling circuit against corrosion when the machine has already been in
operation and is then placed in storage or put out of operation.
1. Completely drain the cooling ducts. Blow out the cooling water ducts with compressed air.
1. Close and seal the intake and discharge.
Preparations for use
4.19 Storage
SIMOTICS FD 1MH1
52 Operating Instructions 02/2019
4.19.3 Protection against corrosion
If the machine is stored in dry conditions, then apply the subsequently listed anti-corrosion
measures:
● Storage up to six months:
Apply a coat of corrosion protective compound to all accessible bare metal parts such as the
exposed shaft extension, flange or machine feet.
● Storage for longer than six months:
Apply a coat of long-term anti-corrosion agent to all accessible bare parts.
● Inspect the machine regularly and if necessary, apply an additional coating of corrosion
protection.
Document all preservation measures taken so that they can be reversed before the machines
are put back into service.
4.20 Converter operation
The following chapter is relevant only if the machine has been ordered for converter operation.
Note
The order number shows whether the machine was ordered for converter operation. In this
case, digits 1, 2, 3 or 4 is located at the 6th position of the order number.
4.20.1 Converter operation of explosion-proof machines
The operation of the explosion-proof machine on the frequency converter is permitted, when
the specifications for the speed control range and torque characteristic are observed, and if
winding temperature monitoring is ensured via the integrated temperature sensors in
conjunction with a tripping unit.
WARNING
Operation with a converter that is not permissible for the application
If a certain converter type has been defined in the test verification document, on the extra
rating plate, or in the certificate, the machine is only allowed to be operated with this converter.
Death, serious injury, or material damage can result if it is operated with an unauthorized
converter.
● Only operate the motor with the specified converter.
Preparations for use
4.20 Converter operation
SIMOTICS FD 1MH1
Operating Instructions 02/2019 53
4.20.2 Supply line configuration
NOTICE
Asymmetric voltage load during operation on a TN system in delta connection
An asymmetric voltage load of the machine winding can occur during operation on a TN
system in delta connection with a grounded line conductor. Winding damage can result.
● Do not operate the machine on a TN system with a grounded line conductor.
NOTICE
Ground fault during operation on an IT system
If a ground fault occurs when connected to an IT supply system, the insulation is excessively
stressed. Winding damage can result.
● If possible, complete the process within two hours.
● Rectify the fault cause.
● Deploy a ground fault monitoring.
4.20.3 Converter input voltage
The insulation system of SIMOTICS machines always complies with the requirements of stress
category C (IVIC C = high stress). If voltage peaks higher than those specified according to
IVIC C can occur, then please contact your Siemens partner:
● For a line supply voltage (converter input voltage) up to max. 480 V, and when controlled
from a SINAMICS G/SINAMICS S converter with uncontrolled/controlled infeed: Comply
with the guidelines for configuring motor and converter.
● For line voltages (converter input voltages) higher than 480 V, motors, which are ordered for
converter operation, have an appropriate insulation system.
● Operation with a converter from another manufacturer: Comply with the permissible voltage
peaks according to IEC 60034-18-41 in accordance with stress category C, dependent on
the particular line voltage (converter input voltage) and the motor insulation system.
NOTICE
Material damage caused by an excessively high supply voltage
The insulation system will be damaged if the supply voltage is too high for the insulation
system. This can completely destroy the machine.
● Comply with the peak voltages as laid down in the guidelines above.
Preparations for use
4.20 Converter operation
SIMOTICS FD 1MH1
54 Operating Instructions 02/2019
4.20.4 Reducing bearing currents
Taking the following actions will reduce the bearing currents:
● Ensure that the contacts are established over a large area. Solid copper cables are not
suitable for high frequency grounding because of the skin effect.
Equipotential bonding conductors:
Use equipotential bonding conductors:
● Between motor and driven machine
● Between motor and converter
● Between the terminal box and the RF grounding point at the motor enclosure.
Selecting and connecting the cable:
As far as possible, use symmetrically arranged, shielded connection cables. The cable
shielding, made up of as many strands as possible, must have good electrical conductivity.
Braided shields made of copper or aluminum are very suitable.
● The shield is connected at both ends, at the motor and converter.
● To ensure good discharging of high-frequency currents, provide contacting over a large
surface area:
– as contact established through 360° at the converter
– at the motor, for instance with EMC glands at the cable entries
● If the cable shield is connected as described, then it ensures the specified equipotential
bonding between the motor enclosure and converter. A separate RF equipotential bonding
conductor is then not necessary.
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Concentric copper or aluminum shield Steel armor
● If the cable shield is not connected due to special secondary conditions, or not adequately
connected, then the specified equipotential bonding is not provided. In this particular case,
use a separate RF equipotential bonding conductor:
– Between the motor enclosure and protective ground rail of the converter.
– Between motor enclosure and driven machine
– Use braided flat copper straps or high-frequency cables with finely-stranded conductors
for the separate RF equipotential bonding cable.
– Ensure that the contacts are established over a large area.
Preparations for use
4.20 Converter operation
SIMOTICS FD 1MH1
Operating Instructions 02/2019 55
Overall system design
To specifically reduce bearing currents, you must consider the system as a whole, which
comprises the motor, converter, and driven machine. The following measures support you
when reducing bearing currents and help to avoid damage:
● In the overall system, set up a properly meshed grounding system with low impedance.
● Use the common-mode filter (damping cores) at the converter output. The Siemens sales
representative is responsible for selection and dimensioning.
● Limit the rise in voltage by using output filters. Output filters dampen the harmonic content
in the output voltage.
Note
Converter documentation
The operating instructions for the converter are not part of this documentation. Refer also to the
configuration information for the converter.
4.20.5 Insulated bearings when operating the converter
If the machine is operated from a low-voltage converter, insulated bearings are fitted at the NDE
and an insulated encoder with insulated bearings (option).
Comply with the plates on the machine relating to bearing insulation and possible bridges.
①Driving machine ④Insulated bearings
②Motor ⑤Insulated tachometer fitting
③Coupling
Figure 4-2 Schematic representation of a single drive
NOTICE
Bearing damage
The bearing insulation must not be bridged. Bearing currents can damage bearings.
● Do not bridge the bearing insulation for subsequent installation work, such as the
installation of an automatic lubrication system or a non-insulated vibration sensor.
● Please contact the service center if necessary.
Preparations for use
4.20 Converter operation
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56 Operating Instructions 02/2019
Tandem operation
If you connect two motors in series in "tandem operation", install an insulated coupling between
the motors.
①Driving machine ④Insulated bearings
②Motor ⑤Insulated tachometer fitting
③Coupling ⑥Insulated coupling
Figure 4-3 Schematic representation of a tandem drive
NOTICE
Bearing damage
Bearing currents can flow if the coupling between the motors of the tandem drive is not
insulated. This can damage the DE bearings of both motors.
● Use an insulated coupling to link the motors.
See also
Service and Support (Page 177)
If you connect two motors in series in "tandem operation", locate a coupling between the
motors; this coupling should satisfy the Directive 2014/34/EU or the regulations that apply in the
country where the equipment is installed.
4.20.6 Converter operation on a grounded network
NOTICE
Damage resulting from protective conductor currents
When the machine is operated with a converter with current limiting, but without ground-fault
monitoring, protective conductor currents of up to 1.7 times the phase conductor current can
flow if there is a ground fault on the output side. Neither the PE conductors of normally rated
multi-conductor connecting cables nor the PE connecting points of standard terminal boxes is
suitable for this purpose. Material damage can result.
● Use an appropriately sized PE conductor.
● Connect the PE conductor to the grounding terminal on the motor enclosure.
Preparations for use
4.20 Converter operation
SIMOTICS FD 1MH1
Operating Instructions 02/2019 57
Preparations for use
4.20 Converter operation
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58 Operating Instructions 02/2019
Assembly 5
5.1 Safety instructions for mounting
Observe the following when carrying out any work on the machine:
● Comply with the general safety instructions
● Comply with the applicable national and sector-specific regulations.
● When using the machine within the European Union, comply with the specifications laid
down in EN 50110‑1 regarding safe operation of electrical equipment.
See also
Safety information (Page 15)
Injury and material damage caused by inappropriate fastening material
If screws of an incorrect property class have been selected or if they have been fastened to an
incorrect tightening torque, they may break or become loose. This will cause the machine to
move, which could damage the bearings. The rotor could smash into the machine enclosure
and machine parts could be flung out of place. This can result in death, serious injury or material
damage.
● Comply with the required property classes for screwed connections.
● Tighten the screwed connections to the specified tightening torques.
Injury and material damage caused by incorrect machine alignment
If the machine has not been properly aligned, this will mean the fastening parts are subjected
to stress/distortion. Screws may become loose or break, the machine will move, machine parts
could be flung out of place. This can result in death, serious injury or material damage.
● Carefully align the machine to the driven machine.
Material damage caused by improper handling
Mounting parts such as temperature sensors or speed sensors are attached to the machine
and could be ripped off or destroyed as a result of improper handling. This could lead to
machine malfunctions, extending even to total loss of the machine.
● Where necessary, use suitable steps when performing installation work on the machine.
● Do not stand on cables or attachments during installation. Do not use attachments as steps.
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Operating Instructions 02/2019 59
Damage to mounted parts and components as a result of high temperatures
The motor components get very hot during operation. High temperatures can damage parts
mounted by customers, such as cables manufactured out of materials that are not heat
resistant.
● Temperature-sensitive parts must not come into contact with or be attached to components
mounted on the machine.
● Only use heat-resistant mounting parts. The connecting cables and cable entries must be
suitable for the particular application.
Loss of conformity with European directives
In the delivery state, the machine corresponds to the requirements of the European directives.
Unauthorized changes or modifications to the machine lead to the loss of conformity with
European Directives and the loss of the associated warranty.
Explosion hazard when making modifications to the machine
Substantial modifications to the machine are not permitted – or may only be performed by the
manufacturer. Otherwise an explosion can occur in an explosive atmosphere. This can result
in death, serious injury or material damage.
● If necessary, please contact the service center.
See also
Service and Support (Page 177)
5.2 Preparations for installation
5.2.1 Requirements for installation
The following requirements must be satisfied prior to starting installation work:
● Staff have access to the operating and installation instructions.
● The machine is unpacked and ready for mounting at the installation location.
● Measure the insulation resistance of the winding before starting any installation work. If the
insulation resistance lies below the specified value, take appropriate remedial measures.
These remedial measures may necessitate the machine being removed again and
transported.
Assembly
5.2 Preparations for installation
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60 Operating Instructions 02/2019
5.2.2 Insulation resistance and polarization index
Measuring the insulation resistance and polarization index (PI) provides information on the
condition of the machine. It is therefore important to check the insulation resistance and the
polarization index at the following times:
● Before starting up a machine for the first time
● After an extended period in storage or downtime
● Within the scope of maintenance work
The following information is provided regarding the state of the winding insulation:
● Is the winding head insulation conductively contaminated?
● Has the winding insulation absorbed moisture?
As such, you can determine whether the machine needs commissioning or any necessary
measures such as cleaning and/or drying the winding:
● Can the machine be put into operation?
● Must the windings be cleaned or dried?
Detailed information on testing and the limit values can be found here:
"Testing the insulation resistance and polarization index" (Page 61)
5.2.3 Testing the insulation resistance and polarization index
WARNING
Hazardous voltage at the terminals
During and immediately after measuring the insulation resistance or the polarization index (PI)
of the stator winding, hazardous voltages may be present at some of the terminals. Contact
with these can result in death, serious injury or material damage.
● If any power cables are connected, check to make sure line supply voltage cannot be
delivered.
● Discharge the winding after measurement until the risk is eliminated, e.g. using the
following measures:
– Connect the terminals with the ground potential until the recharge voltage drops to a
non-hazardous level
– Attach the connection cable.
Measure the insulation resistance
1. Before you begin measuring the insulation resistance, please read the operating manual for
the insulation resistance meter you are going to use.
2. Short-circuit the ends of the temperature sensor cables before applying the test voltage. If
the test voltage is connected to only one temperature sensor terminal, the temperature
sensor will be destroyed.
Assembly
5.2 Preparations for installation
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Operating Instructions 02/2019 61
3. Make sure that no power cables are connected.
4. Measure the winding temperature and the insulation resistance of the winding in relation to
the machine enclosure. The winding temperature should not exceed 40° C during the
measurement. Convert the measured insulation resistances in accordance with the formula
to the reference temperature of 40° C. This thereby ensures that the minimum values
specified can be compared.
5. Read out the insulation resistance one minute after applying the measuring voltage.
Limit values for the stator winding insulation resistance
The following table specifies the measuring voltage and limit values for the insulation
resistance. These values correspond to IEEE 43‑2000 recommendations.
Table 5-1 Stator winding insulation resistance at 40° C
U
N
V
U
meas
V
R
C
MΩ
U ≤ 1000 500 ≥ 5
1000 ≤ U ≤ 2500 500 (max. 1000) 100
2500 < U ≤ 5000 1000 (max. 2500)
5000 < U ≤ 12000 2500 (max. 5000)
U > 12000 5000 (max. 10000)
U
rated = rated voltage, see the rating plate
U
meas = DC measuring voltage
R
C = minimum insulation resistance at a reference temperature of 40 °C
Conversion to the reference temperature
When measuring with winding temperatures other than 40° C, convert the measuring value to
the reference temperature of 40° C according to the following equations from IEEE 43-2000.
(1)
R
C =
K
T ·
R
T
R
CInsulation resistance converted to 40° C reference temperature
K
TTemperature coefficient according to equation (2)
R
TMeasured insulation resistance for measuring/winding temperature
T
in °C
(2)
K
T = (0.5) (40-T)/10
40 Reference temperature in °C
10 Halving/doubling of the insulation resistance with 10 K
T
Measuring/winding temperature in °C
In this case, doubling or halving the insulation resistance at a temperature change of 10 K is
used as the basis.
● The insulation resistance halves every time the temperature rises by 10 K.
● The resistance doubles every time the temperature falls by 10 K.
Assembly
5.2 Preparations for installation
SIMOTICS FD 1MH1
62 Operating Instructions 02/2019
For a winding temperature of approx. 25° C, the minimum insulation resistances are 20 MΩ
(U ≤ 1000 V) or 300 MΩ (U > 1000 V). The values apply for the complete winding to ground.
Twice the minimum values apply to the measurement of individual assemblies.
● Dry, new windings have an insulation resistance of between 100 and 2000 MΩ, or possibly
even higher values. An insulation resistance value close to the minimum value could be due
to moisture and/or dirt accumulation. The size of the winding, the rated voltage and other
characteristics affect the insulation resistance and may need to be taken into account when
determining measures.
● Over its operating lifetime, the motor winding insulation resistance can drop due to ambient
and operational influences. Calculate the critical insulation resistance value depending on
the rated voltage by multiplying the rated voltage (kV) by the specific critical resistance
value. Convert the value for the current winding temperature at the time of measurement,
see above table.
Measuring the polarization index
1. To determine the polarization index, measure the insulation resistances after one minute
and ten minutes.
2. Express the measured values as a ratio:
PI =
R
insul 10 min /
R
insul 1 min
Many measuring devices display these values automatically following the measurement.
For insulation resistances > 5000 MΩ, the measurement of the PI is no longer meaningful and
consequently not included in the assessment.
R(10 min) / R(1 min) Assessment
≥ 2 Insulation in good condition
< 2 Dependent on the complete diagnosis of the insulation
NOTICE
Damage to insulation
If the critical insulation resistance is reached or undershot, this can damage the insulation and
cause voltage flashovers.
● Contact the service center (Page 177).
● If the measured value is close to the critical value, you must subsequently check the
insulation resistance at shorter intervals.
Limit values of the anti-condensation heating insulation resistance
The insulation resistance of the anti-condensation heating with respect to the machine housing
should not be lower than 1 MΩ when measured at 500 V DC.
Assembly
5.2 Preparations for installation
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Operating Instructions 02/2019 63
5.2.4 Prepare the mating faces (IM B3)
● Ensure that the foundation faces are flat and free of contaminations.
Note
Shims
To establish a defined mounting surface, you can order shims (option L31) from our Service
Center.
● Check the dimensions of the mounting-foot holes.
See also
Service and Support (Page 177)
5.2.5 Prepare the mating face for a flange connection
● Clean the flange before installation, and make sure that the flange face is flat and free of
contaminations.
● Check the geometry of the flange.
5.2.6 Prepare the mating face for wall mounting
● Ensure that the wall surface is flat and free of contaminations.
● Check the dimensions of the mounting-foot holes.
● Support the machine from below, e.g. using a wall bracket or by bolting it.
5.3 Lift the machine to where it will be installed, and position it
5.3.1 Preconditions for correct alignment and secure attachment
Detailed specialist knowledge of the following measures is required in order to correctly align
and securely fit the equipment.
● Preparing the foundation
● Selecting and mounting the coupling
● Measuring the concentricity and axial eccentricity tolerances
● Positioning the machine
If you are not familiar with the prescribed measures and procedures, then you can make use of
the services offered by the local Service Center (Page 177).
Assembly
5.3 Lift the machine to where it will be installed, and position it
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64 Operating Instructions 02/2019
5.3.2 Checking the load handling attachments
Inspect the load handling attachments such as the load trestles, lifting eyes and ring bolts and
also the lifting gear, before lifting the machine:
● Inspect the load handling attachments on the machine for possible damage. Replace any
load suspension equipment that is found to be damaged.
● Before use, check that the load suspension equipment is correctly attached.
● When lifting the machine, use only approved and undamaged lifting gear of sufficient rated
capacity. Check the lifting gear prior to its use.
WARNING
The machine can be dropped
If the load handling attachments and lifting gear are damaged or not correctly secured, the
machine may be dropped during lifting. This can result in death, serious injury or material
damage.
● Inspect the load handling attachments and lifting gear before use.
5.3.3 Removing the rotor shipping brace
If a rotor shipping brace is attached to the machine, remove it at the last possible moment,
for example, when you are ready to push on the output or drive element.
5.3.4 Removing the rotor shipping brace from machines in vertical type
NOTICE
Removing the rotor shipping brace in the horizontal position.
Dismantling the rotor shipping brace when the machine is in a horizontal position could
damage the bearings.
● Only remove the rotor shipping brace when the machine is in a vertical position.
NOTICE
Turning the motor over without rotor shipping brace
Failure to fit the rotor shipping brace can result in damage to the bearings while the machine
is being turned onto its side.
● Fix the rotor in place before you turn the machine into a horizontal position.
Assembly
5.3 Lift the machine to where it will be installed, and position it
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Operating Instructions 02/2019 65
Note
Store the rotor locking device
Be sure to store the rotor locking device. It must be remounted for possible disassembly and
transport.
5.3.5 Removing anti-corrosion protection
Machined, bare metallic surfaces of the motor, such as the shaft end, fitted key, foot and flange
surfaces, are treated with an anti-corrosion agent.
1. Remove this layer of anti-corrosion agent from the mounting surfaces of the motor by wiping
it away with an absorbent cloth or paper sheet.
NOTICE
Damage to the machine surface
Using metal objects such as scrapers, spatulas, or plates to remove the anti-corrosion
protection could result in damage to the surfaces of the machine parts.
2. Then lightly oil the bare surfaces again.
5.3.6 Mounting the output elements
Type of balancing
The rotor is dynamically balanced. For shaft extensions with featherkeys, the balancing type is
specified using the following coding on the face of the drive end of the shaft:
● "H" means balancing with a half feather key
● "F" means balancing with a whole feather key
Figure 5-1 Balancing type on the drive-end side
Assembly
5.3 Lift the machine to where it will be installed, and position it
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66 Operating Instructions 02/2019
Pushing on the power output elements
● Requirements:
– The coupling and/or the output element must be appropriately dimensioned for the
operating case at hand.
Carefully comply with the coupling manufacturer's instructions.
– Make sure that the balancing type of the transmission element correctly matches the
type of balance of the rotor.
– Use only ready drilled and balanced transmission elements. Check the hole diameters
and the balancing status before pulling them on. Thoroughly clean the shaft extension.
● Pulling on:
– Warm up the transmission elements to expand them before pulling them on. Select the
temperature difference for the heating process to suit the coupling diameter, fit and
material. Carefully comply with the coupling manufacturer's instructions.
– Power output elements may only be pushed on or pulled off with the correct equipment.
The transmission element must be pulled on in one continuous operation via the front
thread holes in the shaft or pushed on by hand.
– Do not strike it with a hammer, as this would damage the bearings.
Shaft extensions with feather key
To maintain the balancing quality, you have the following options:
● If the transmission element is shorter than the feather key with balancing type "H", then you
must machine off the section of feather key protruding from the shaft contour and
transmission element in order to maintain the balance quality.
● If the transmission element is drawn up on to the shoulder of the shaft, you must ensure that
the part of the coupling groove where the feather key is not inserted is taken into
consideration when balancing the coupling.
The following applies to all four-pole machines with a frequency ≥ 60 Hz:
● The feather key must be shortened if the coupling hub us shorter than the feather key.
● The center of gravity of the coupling half should be within the length of the shaft end.
● The coupling used must be prepared for system balancing.
The number of poles of the machine is specified on the rating plate, at the 10th position of
the motor type. There, four-pole machines are marked with a "B".
Danger when feather keys are flung out
The feather key is only secured to prevent it falling out during transport. The feather key may
be flung out if the motor is operated without fitted transmission elements, such as coupling, etc.
This can result in death, serious injury or material damage.
● Only operate the motor with the transmission element pulled on.
● For test operation or when commissioning without transmission element, carefully secure
the feather key using a suitable locking element. When doing this, take into account the type
of machine balancing.
Assembly
5.3 Lift the machine to where it will be installed, and position it
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Operating Instructions 02/2019 67
5.3.7 Lifting and transportation
To safely lift and transport the machine, the following requirements must be met:
● Personnel operating cranes and fork-lift trucks must be appropriately qualified.
● If the machine is packed, depending on the weight, size and on-site conditions, lift crates
and transport frames using a fork-lift truck or a crane with slings. Use a crane or fork-lift truck
suitable for the load.
● When lifting the machine, use only approved and undamaged sling guides and spreaders
of sufficient rated capacity. Check the lifting equipment prior to its use. The weight of the
machine is shown on the rating plate.
● When lifting the machine, refer to the information on the lifting plate.
– Comply with the specified spreading angles.
– Do not exceed the maximum lifting acceleration and lifting speed specified on the lifting
plate. Lift the machine without jerking it.
Acceleration a ≤ 0.4 g (≈ 4 m/s2 )
Velocity v ≤ 20 m/min
WARNING
Transport for a different type of construction
If you do not transport or lift the machine in a position appropriate for its construction, the
machine can tip, slip into the lifting equipment or fall down. This can result in death, serious
injury or material damage.
● Use only the load carrying device on the stator frame for lifting.
● Use the load carrying device appropriate for the machine position.
● Only use suitable rope guiding or spreading devices.
WARNING
Center of gravity not centered
If the center of gravity of a load is not located centrally between the attachment points, the
machine can tip over or slip out of the lifting equipment and fall when it is being transported or
lifted. This can result in death, serious injury or material damage.
● Comply with the handling instructions on the machine when transporting it.
● Be aware of the possibility of different loads on the sling ropes or lifting straps and the
carrying capacity of the lifting equipment.
● Always take account of the center of gravity when transporting or lifting the machine. If the
center of gravity is not located centrally between the attachment points, then position the
hoisting hook above the center of gravity.
Assembly
5.3 Lift the machine to where it will be installed, and position it
SIMOTICS FD 1MH1
68 Operating Instructions 02/2019
Note
Place the machine in a secure and raised position
In order to obtain easy and safe access to the underside of the machine, place it in a secure and
raised position.
DANGER
Standing under suspended loads
If the lifting gear or load handling attachments were to fail, the machine could fall. This can
result in death, serious injury or material damage.
● Never remain under or in the immediate vicinity of the machine when it is raised.
5.3.8 Putting the machine down
Requirements
The following preconditions must be satisfied before setting down the machine at the
installation location:
● The mating faces must be clean.
● The anti-corrosion protection paint has been removed from the mating faces, such as the
machine mounting feet, flange, ...
● There is no condensation present within the machine.
Setting down the machine
● Set down the machine slowly and carefully at the installation location to avoid any impact.
See also
Draining condensation (Page 70)
Assembly
5.3 Lift the machine to where it will be installed, and position it
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Operating Instructions 02/2019 69
5.3.9 Draining condensation
Under the following conditions it is possible that condensate may accumulate within the
machine:
● Wide fluctuations in the ambient temperature, such as direct sunshine combined with high
atmospheric humidity
● Intermittent operation or load fluctuations during operation
NOTICE
Damage due to condensate
If the stator winding is damp, its insulation resistance will be reduced. This can result in
voltage flashovers, which can destroy the winding. Condensate can also cause rust to form
within the machine.
Ensure that condensate can drain away.
Depending on the type of installation, the water drainage holes are located at the bottom:
Allow the condensation water to discharge for vertical placement
In the DE bearing shield, water drain holes are located in the area of the mounting feet or
opposite the regreasing system. They are sealed with screw plugs.
Figure 5-2 Condensation water drain for vertical mounting
Assembly
5.3 Lift the machine to where it will be installed, and position it
SIMOTICS FD 1MH1
70 Operating Instructions 02/2019
Allow the condensation water to discharge for horizontal placement
The water drain holes are located in the lower side of the stator enclosure, and sealed with
screw plugs.
Figure 5-3 Condensation water drain for horizontal mounting
To drain the condensation water, proceed as follows:
1. Remove the screw plugs to allow the condensation water to drain.
2. Then reinsert the screw plugs.
NOTICE
The degree of protection is reduced
Nominally the degree of protection of the machine is reduced to IP44 when the screw plug is
removed.
5.3.10 Roughly aligning the machine
Requirement
The transmission element such as a coupling half has already been pulled on.
Roughly aligning the machine
● For horizontal positioning, push the motor sideways across the foundation. When doing so,
ensure that the axial position is maintained.
Assembly
5.3 Lift the machine to where it will be installed, and position it
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Operating Instructions 02/2019 71
5.4 Installing the machine
5.4.1 Preconditions for smooth, vibration-free operation
Preconditions for smooth, vibration-free operation:
● Stable foundation design
● Precise alignment of the machine
● Correct balancing of parts to be fitted to the shaft end.
● Maintaining the vibration velocity according to ISO 10816‑3
5.4.2 Aligning the machine to the driven machine and mounting (IM B3 / IM B35)
1. Refer to any instructions for aligning the driven machine and those of the coupling
manufacturer.
2. Align the machines with coupling output to the driven machine in such a manner that the
center lines of the shafts at the operating temperature do not have any parallel or angular
offset. This ensures that no additional forces affect their bearings during operation.
If the thermal change of the motor and the driven machine is different, couple in the cold
state with an appropriate alignment offset. The alignment offset to be set in the cold state
must be determined and specified by the system specialist.
3. For the vertical positioning (x→0), place thin shims over a large surface area under the
machine feet. The number of shims should be kept as low as possible, i.e. stack as few as
possible. This also prevents the machine being subjected to any stress/distortion. Use the
existing tapped holes for the forcing-off bolts to raise the machine.
The balance state of the shaft (full-key or half-key balancing) and alignment errors primarily
influence the service life of the bearing, especially for high motor speeds or when using rigid
couplings.
Assembly
5.4 Installing the machine
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72 Operating Instructions 02/2019
4. When positioning the machine, ensure that a uniform axial gap (y→0) is maintained around
the coupling.
5. Fix the machine to the foundation. The choice of fixing elements depends on the foundation
and is the plant operator's responsibility.
①Plates placed under the motor for alignment
②Laser alignment
Figure 5-4 Schematic diagram: Aligning the machine to the driven machine
Table 5-2 Permissible deviations for aligning the machine with flexible coupling
Max. speed nmax Max. parallel offset x Max. angular offset y
nmax ≤ 1500 rpm xmax = 0.08 mm ymax = 0.08 mm / 100 mm ∅ D
1500 rpm < nmax ≤ 3600 rpm xmax = 0.05 mm ymax = 0.05 mm / 100 mm ∅ D
Note
Machine expansion
When performing alignment, make allowance for the thermal expansion of the machine due to
rising temperature.
See also
Tightening torques for screw and bolt connections (Page 179)
Assembly
5.4 Installing the machine
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Operating Instructions 02/2019 73
5.4.3 Aligning the machine to the driven machine and attaching it to it (IM B5)
The standard flange is provided with a centering. The choice of fit for the mating flange on the
driven machine is the system manufacturer's or the plant operator's responsibility.
Note
If the machine is not fitted with a standard flange, align the machine to suit the driven
machine.
Procedure
The machine axis must be horizontal when it is lifted and the flange must be parallel to the
mating flange, so as to avoid seizing and stressing. Otherwise damage to the centering will
result.
1. Grease the centering flange with assembly paste to make the process easier.
2. Screw three studs into tapped holes spaced about 120° apart around the driven machine
flange. The studs act as positioning aids.
3. Position the machine so that its axis is aligned with that of the driven machine, but not yet
quite touching. Advance the machine slowly towards the driven machine; advancing too
quickly risks damaging the centering.
4. If necessary, rotate the machine into the right position so that the clearance holes in the
flange are central to the tapped holes.
5. Move the machine fully up against the mating flange so that it is fully in contact.
6. Fix the machine using the flange fixing bolts, finishing by replacing the studs.
See also
Tightening torques for screw and bolt connections (Page 179)
There is a threaded hole M36 at the bottom of the machine where you can fasten the support
base.
● Mount the support base so that no additional mechanical tensions can occur in the housing.
WARNING
Mechanical tensions
The machine may be damaged by additional mechanical tensions in the housing caused
by incorrect mounting of the support base. The machine or machine parts may loosen
during operation.
This can result in death, serious injury or material damage.
● Mount the support base so that no additional mechanical tensions can occur in the
housing.
Assembly
5.4 Installing the machine
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74 Operating Instructions 02/2019
5.4.4 Aligning the machine to the driven machine and attaching it to it (IM V1, IM V10)
The standard flange is provided with a centering. The choice of fit for the mating flange on the
driven machine is the system manufacturer's or the plant operator's responsibility.
Note
If the machine is not fitted with a standard flange, align the machine to suit the driven machine.
Procedure
The machine axis must be vertical when it is lifted and the flange must be parallel to the mating
flange, so as to avoid seizing and stressing. Otherwise damage to the centering will result.
1. Grease the centering flange with assembly paste to make the process easier.
2. Screw in two studs into tapped holes on opposite sides of the driven machine flange. The
studs act as positioning aids.
3. Lower the machine slowly toward the driven machine and into the centering, so that the
flanges do not quite touch. Lowering too quickly risks damaging the centering.
4. If necessary, rotate the machine into the right position so that the clearance holes in the
flange are central to the tapped holes.
5. Lower the machine completely onto the mating flange so that it is fully in contact; then
remove the studs.
6. Fix the machine using the flange fixing bolts.
See also
Tightening torques for screw and bolt connections (Page 179)
Alignment accuracy
The coaxial characteristic of the shafts of electrical machines and driven machine may not
exceed 0.05 mm in diameter.
5.4.5 Axial and radial forces
You can obtain the permissible values for axial and radial forces by contacting the Siemens
Service Center (Page 177) or referring to the machine catalog.
Assembly
5.4 Installing the machine
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Operating Instructions 02/2019 75
WARNING
Damage to bearings or the shaft
Large output masses and their centers of gravity outside the shaft extensions can lead to
resonance in operation. This can result in damage to the bearings and shaft. In an explosive
atmosphere, there is a risk of explosion. Death, serious injury, or material damage can result.
● Ensure that the permissible loads for the forces on the shaft extension are adhered to in
accordance with the catalog data or configuration data.
Note
You can find more information in Chapter 2 of catalog D81.8.
5.5 Connecting the cooling water supply
There are three couplings ① and ② on the bearing shield for the coolant connection. The
lower coupling ② is used to drain the coolant for type of construction IM B3.
Figure 5-5 Standard coolant connections and coolant drain hole
Assembly
5.5 Connecting the cooling water supply
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76 Operating Instructions 02/2019
1. With the "Piping" option, piping is attached on the right, left or top at the NDE. You can then
connect the coolant supply radially to the appropriate side.
Different threads are available depending on the machine type.
Machine type Thread
1LH….-3A…-…. / 1MH….-3A…-….
1LH….-3B…-…. / 1MH….-3B…-….
G1/2"
1LH….-4A…-…. / 1MH….-4A…-….
1LH….-4B…-…. / 1MH….-4B…-….
G3/4"
2. Use flexible water lines and hoses. This avoids mechanical stress at the connections as a
result of the heat-dependent height increase of the machine (thermal expansion).
3. Only use valves, fittings and cooling water pipes made of rust-proof, stainless steel in the
cooling system.
4. Make sure that the cooling water complies with the required cooling water specification.
5. Make sure that the appropriate volume of cooling water is available.
6. Hold the hexagon coupler with an open-ended wrench while you screw in the water pipes.
NOTICE
Damage to the pipe system
The hexagonal couplers are connected directly to the water pipes inside the machine.
Applying excessive torque when screwing in can damage the pipe system.
● Hold the couplers with an open-ended wrench while you screw in the water pipes.
● Avoid axial forces at the coolant connections.
7. Screw the cooling water pipes into the female thread. You can connect the inlet and outlet
as required.
See also
Coolant specification (Page 36)
Coolant specification (M85 "stainless steel version" option) (Page 38)
NOTICE
Bleed air from the cooling ducts
Adequate machine cooling cannot be guaranteed if the cooling ducts are not completely filled
with water. The machine can overheat.
● Vent the cooling ducts when filling. Completely fill the cooling ducts with water.
Assembly
5.5 Connecting the cooling water supply
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Assembly
5.5 Connecting the cooling water supply
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78 Operating Instructions 02/2019
Electrical connection 6
6.1 Safety instructions for the electrical connection
Observe the following when carrying out any work on the machine:
● Comply with the general safety instructions (Page 15)
● Comply with the applicable national and sector-specific regulations.
● When using the machine within the European Union, comply with the specifications laid
down in EN 50110‑1 regarding safe operation of electrical equipment.
Risk of explosion by fixing elements becoming loose
If you use fixing elements made from the wrong material or apply the wrong tightening torque,
this could impair current transfer or cause connecting parts to become loose. Fastening
elements can work loosely, so that the minimum air clearances are no longer maintained.
Sparking formation may occur, in an explosive atmosphere it can lead to an explosion. This
could result in death, serious injury or material damage to the machine or even in failure, which
could in turn lead indirectly to material failure of the system.
● Tighten the screwed connections to the specified tightening torques.
● Observe any specifications regarding the materials from which fixing elements must be
made.
● When performing servicing, check the fastenings.
See also
Tightening torques for screw and bolt connections (Page 179)
Note
Service Center
If you require support when electrically connecting up the machine, please contact the Service
Center (Page 177).
6.2 Basic rules
The following generally applies to electrical connections:
● Ensure that there is a safe and reliable PE ground connection before starting any work.
● The connecting cables can be sealed and secured at every cable entry point into the
terminal box.
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Operating Instructions 02/2019 79
● Lay the connecting cables and in particular the PE conductor in the terminal box in an open
arrangement so that chafing of the cable insulation is prevented.
● Connect the machine in such a way that a permanent, safe electrical connection is
maintained. Avoid protruding wire ends.
● Lay and secure external auxiliary cables separately from the main cable. Elements with
cable ties may be present for this purpose.
● In case of high humidity or when installed outside, water drops can move along the cable
jacket and enter the motor through the cable entry and cable gland.
If you route the cable with an appropriate loop then water doesn't enter the terminal box, but
simply drips off.
;;
Figure 6-1 Water drip loop
6.3 Terminal box
Depending on the version, different terminal boxes may be installed on the machine.
Depending on the terminal box, different cable entries and options for the cable connection are
possible. You can identify the terminal box installed on the machine via the illustrations in the
following chapters.
Electrical connection
6.3 Terminal box
SIMOTICS FD 1MH1
80 Operating Instructions 02/2019
6.3.1 Terminal box 1XB1621
Figure 6-2 Terminal box 1XB1621
The connecting cables are introduced into the 1XB1621 terminal box through the cable glands
with threaded holes 2 x M80 x 2 and 2 x M25 x 1.5. The cable glands are not included in the
standard scope of supply. The version with sealing insert with break-off ring is optional.
You can find additional information here:
● Bringing cables into the terminal box 1XB... with cable gland (Page 94)
● Connecting cables without cable lugs (Page 96)
● Connecting cables with cable lugs (Page 95)
See also
Bringing cables into the terminal box 1XB... with sealing insert with break-off ring (Page 92)
6.3.2 Terminal box 1XB1631
Figure 6-3 Terminal box 1XB1631
Electrical connection
6.3 Terminal box
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The connecting cables are introduced into the 1XB1631 terminal box through cable glands with
threaded holes 4 x M80 x 2 and 2 x M25 x 1.5. The cable glands are not included in the standard
scope of supply. The version with onion sealing ring is optional.
You can find additional information here:
● Bringing cables into the terminal box 1XB... with cable gland (Page 94)
● Connecting cables without cable lugs (Page 96)
● Connecting cables with cable lugs (Page 95)
See also
Bringing cables into the terminal box 1XB... with sealing insert with break-off ring (Page 92)
6.3.3 Terminal box 1XB7730
Only a three-core power cable can be connected in terminal box 1XB7730.
Figure 6-4 Terminal box 1XB7730
The connecting cables are introduced into the 1XB7730 terminal box through the cable glands
with threaded holes 1 x M72 x 2 and 3 x M25 x 1.5. The cable glands are not included in the
standard scope of supply.
You can find additional information here:
● Bringing cables into the terminal box 1XB... with cable gland (Page 94)
● Connecting cables with cable lugs (Page 95)
● Connecting cables without cable lugs (Page 96)
Electrical connection
6.3 Terminal box
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82 Operating Instructions 02/2019
6.3.4 Terminal box 1XB7731
Figure 6-5 Terminal box 1XB7731
The connecting cables are introduced into the 1XB7731 terminal box through the cable glands
with threaded holes 2 x M72 x 2 and 3 x M25 x 1.5. The cable glands are not included in the
standard scope of supply.
You can find additional information here:
● Bringing cables into the terminal box 1XB... with cable gland (Page 94)
● Connecting cables with cable lugs (Page 95)
● Connecting cables without cable lugs (Page 96)
6.3.5 Terminal box 1XB7740
Figure 6-6 Terminal box 1XB7740
The connecting cables are introduced into the 1XB7740 terminal box through the cable glands
with threaded holes 4 x M80 x 2 and 3 x M25 x 1.5. The cable glands are not included in the
standard scope of supply.
Electrical connection
6.3 Terminal box
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You can find additional information here:
● Bringing cables into the terminal box 1XB... with cable gland (Page 94)
● Connecting cables with cable lugs (Page 95)
● Connecting cables without cable lugs (Page 96)
6.3.6 Terminal box 1XB7750
Figure 6-7 Terminal box 1XB7750
The connecting cables are introduced into the 1XB7750 terminal box through the cable glands
with threaded holes 8 x M72 x 2 and 3 x M25 x 1.5. The cable glands are not included in the
standard scope of supply.
You can find additional information here:
● Bringing cables into the terminal box 1XB... with cable gland (Page 94)
● Connecting cables with cable lugs (Page 95)
● Connecting cables without cable lugs (Page 96)
6.3.7 Rotating the terminal box
Depending on the terminal box and version, you can rotate the terminal box through ±90° in
accordance with the connection direction. The implementation on the other motor side is
possible only with the support of the Service Center (Page 177). If you want to rotate a terminal
box not listed below, then also contact the Service Center.
Electrical connection
6.3 Terminal box
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84 Operating Instructions 02/2019
Rotating the terminal box depends on the mount and the cross-section of the internal stator
cables as well as the terminal box type:
● 1XB7730
– With installed internal stator cables, you can rotate the terminal box through ±90°.
● 1XB7731
– For six or fewer cables, you can rotate the terminal box with installed stator cables
through ±90°.
– For more than six cables, you must remove the internal stator cables before rotation.
● 1XB7740
– For 12 or fewer cables and lower cross-sections, you can rotate the terminal box with
installed stator cables through ±90°.
– For more than 12 cables - or for cables with a cross-section greater than 50 mm² - you
must remove the internal stator cables before rotating the terminal box.
● 1XB7750
– Remove the internal stator cables before rotating the terminal box.
Rotating a terminal box with mounted stator cables
1. Ensure that the motor is disconnected from the power supply.
2. Release two diagonally opposed screws for the cover, and secure the cover using two M10
threaded bars screwed in diagonally opposing one another. Release the two other screws
and lift the cover off the terminal box. The terminal box cover is very heavy. Especially when
in a lateral position, ensure that the terminal box does not fall down.
3. If the motor is already connected:
– Remove the cables of the power supply.
– Release the screw connection of the cable entry. Remove the cables through the
opening.
4. Remove the grounding straps on two sides of the terminal box lower section.
5. Remove the screwed joints of the lower section with the console or optionally the cable duct.
6. Screw in two eye-bolts diagonally in the M10 thread at the corners. Slightly raise the terminal
box housing using a crane.
7. Rotate the terminal box through ±90° in the desired direction. Carefully place the terminal
box down. Take care not to damage the seal.
8. Screw the terminal box with the console / cable duct (4 x M16, tightening torque 170 Nm).
Electrical connection
6.3 Terminal box
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9. Fasten the grounding straps to the terminal box lower section and the console or cable duct:
– After rotation, remove the plugs of the two nearest M8 threads on the console or cable
duct.
– Grind the surface at the drilled holes so that the grounding straps have metallic contact.
– Then fasten the two straps to the terminal box lower section and the console or cable
duct (4x M8, tightening torque 11 Nm).
– Protect the bare areas at the contact with corrosion protection.
10.Reconnect the power supply cables. More information:
– Connecting the grounding conductor (Page 89)
– Introducing and routing the cables ...
– Connecting cables ...
11.Screw in the two diagonally arranged threaded bars and slide the cover onto these bars.
Take care not to damage the seal.
12.Fix the two free screw connections and tighten by hand.
13.Remove the threaded bars and screw in the two other screws.
14.Tighten all screws (4 x M10, tightening torque 40 Nm).
Rotating a terminal box with removed stator cables
1. Ensure that the motor is disconnected from the power supply.
2. Release two diagonally opposed screws for the cover, and secure the cover using two M10
threaded bars screwed in diagonally opposing one another. Release the two other screws
and lift the cover off the terminal box. The terminal box cover is very heavy. Especially when
in a lateral position, ensure that the terminal box does not fall down.
3. If the motor is already connected:
– Remove the cables of the power supply.
– Release the screw connection of the cable entry. Remove the cables through the
opening.
4. Release the screwed connections of the internal stator cables, optionally also those at the
neutral point.
5. Remove the grounding straps on two sides of the terminal box lower section.
6. Remove the screwed joints of the lower section with the console or optionally the cable duct.
7. Screw in two eye-bolts diagonally in the M10 thread at the corners. Slightly raise the terminal
box housing using a crane.
8. Rotate the terminal box through ±90° in the desired direction. Carefully place the terminal
box down. Take care not to damage the seal.
9. Screw the terminal box with the console / cable duct (4 x M16, tightening torque 170 Nm).
Electrical connection
6.3 Terminal box
SIMOTICS FD 1MH1
86 Operating Instructions 02/2019
10.Fasten the grounding straps to the terminal box lower section and the console or cable duct:
– After rotation, remove the plugs of the two nearest M8 threads on the console or cable
duct.
– Grind the surface at the drilled holes so that the grounding straps have metallic contact.
– Then fasten the two straps to the terminal box lower section and the console or cable
duct (4x M8, tightening torque 11 Nm).
– Protect the bare areas at the contact with corrosion protection.
11.Connect the cables in accordance with the circuit diagram on the inside of the cover (M12,
tightening torque 20 Nm). Ensure that the minimum air clearances are observed. More
information:
Minimum air clearances (Page 100)
12.Reconnect the power supply cables. More information:
– Connecting the grounding conductor (Page 89)
– Introducing and routing the cables ...
– Connecting cables ...
13.Screw in the two diagonally arranged threaded bars and slide the cover onto these bars.
Take care not to damage the seal.
14.Fix the two free screw connections and tighten by hand.
15.Remove the threaded bars and screw in the two other screws.
16.Tighten all screws (4 x M10, tightening torque 40 Nm).
See also
Connecting cables with cable lugs (Page 95)
Connecting cables without cable lugs (Page 96)
Bringing cables into the terminal box 1XB... with cable gland (Page 94)
6.3.8 Mounting/removing the terminal box
When removing or installing the terminal box cover, secure it using diagonally arranged M10
threaded bars to prevent it falling.
Removing the terminal box
1. Release two diagonally opposing screws at the terminal box cover and replace them by
threaded bars.
2. Release the two other screws.
3. Carefully pull the terminal box cover over the threaded bars.
Electrical connection
6.3 Terminal box
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Mounting the terminal box
1. Screw in the two threaded bars diagonally at the lower section of the terminal box.
2. Slide the terminal box cover over the threaded bars onto the lower section of the terminal
box.
3. Screw the screws into the free holes and tighten by hand.
4. Release the threaded bars.
5. Tighten all four M10 screws, tightening torque 40 Nm.
6.4 Preparation
6.4.1 Terminal designation
According to IEC / EN 60034‑8, the following basic definitions apply to the terminal
designations for 3-phase machines:
Table 6-1 Terminal designations using the 1U1-1 as an example
1 U 1 - 1 Designation
x Index for pole assignment for pole-changing machines where applicable. A lower
index signifies a lower speed. Special case for split winding.
x Phase designation U, V, W
x Index for winding start (1) or end (2) or if there is more than one connection per
winding
x Additional indices for cases in which it is obligatory to connect parallel power feed
cables to several terminals with otherwise identical designations
6.4.2 Selecting cables
Take the following criteria into account when selecting the connecting cables:
● Rated current
● Rated voltage
● Possibly a service factor
● System-dependent conditions, such as ambient temperature, routing type, cable cross-
section as defined by required length of cable, etc.
● Requirements according to IEC/EN 60204‑1
● Dimensioning for bundled cable routing, e.g. according to DIN VDE 0298 Part 4 or
IEC 60364-5-52
● Requirements according to IEC/EN 60079-14
● Configuration notes
Electrical connection
6.4 Preparation
SIMOTICS FD 1MH1
88 Operating Instructions 02/2019
6.4.3 Connecting the grounding conductor
The grounding conductor cross-section of the motor must be in full conformance with the
installation specifications, e.g. in accordance with IEC 60034-1.
External conductor cross-section S
mm²
Grounding conductor cross-section
mm²
35 25
50 25
70 35
95 50
120 70
150 70
185 95
240 120
300 150
400 185
There is a hexagon bolt with a flat washer and a spring washer on the stator frame at the
designated connection point for the grounding conductor. The grounding conductor can be
connected as follows:
● With stranded cables with cable lugs
● With flat cables with cable end designed accordingly
As an alternative, you can connect the grounding conductor without cable lugs using a
clamping plate at the marked connection point.
Connecting the grounding conductor
● Use the connecting terminals designated for the grounding conductor in the terminal box.
● Ensure that the connecting surface is bare and is protected against corrosion using a
suitable substance, e.g. acid-free Vaseline.
● Arrange the flat washer and spring washer under the screw head.
Electrical connection
6.4 Preparation
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Operating Instructions 02/2019 89
● Check that the maximum permissible clamping thickness of 10 mm for the cable lug or strap
is not exceeded.
● Fasten the clamping screw according to the following table. Screw-in depth and tightening
torque are different depending on whether cable lugs or ground terminals are used.
Screw Screw-in depth Tightening torque
When using cable lugs M6 > 6 mm 8 Nm
M8 > 8 mm 20 Nm
M12 x 25 > 16 mm 38 Nm
M16 x 35 > 20 mm 92 Nm
When using grounding
terminals
M6 > 9 mm 8 Nm
M8 > 12 mm 20 Nm
M10 > 15 mm 40 Nm
M12 > 18 mm 70 Nm
M16 > 20 mm 170 Nm
See also
Converter operation (Page 107)
6.4.4 Connect metal shield in the terminal box
If you are using metal-armored cables that are inserted into the terminal or auxiliary terminal
boxes with non-intrinsically safe circuits, then ground the metal shield in the terminal box.
Additional grounding points are permissible.
● In terminal boxes with internal grounding part, connect the metal shield to the internal
grounding point.
● In terminal boxes without internal grounding part, connect the metal shield to one of the
green-yellow grounding terminals.
6.4.5 Connection without terminal box
If the machine was ordered without terminal box (where the cables are simply brought out of the
motor), then the proper connection must be made in an external terminal box.
WARNING
Incorrect dimensioning
Faults can occur if the appropriate technical data is not complied with when connecting up. For
instance, degree of protection, minimum air and creepage distances. These faults can result
in eventual or immediate death, serious injury or material damage.
● Ensure that the external terminal box is dimensioned according to the data on the rating
plate and is suitable for the respective use.
Electrical connection
6.4 Preparation
SIMOTICS FD 1MH1
90 Operating Instructions 02/2019
If the motor has been ordered with brought-out leads, in this case you must comply with the
relevant conditions for Zone 2. It is assumed that the buyer, the installer and users of the
installation are familiar with these conditions and will carefully observe them.
6.4.6 Connecting the machine for a specific direction of rotation
If the machine has one shaft extension or two shaft extensions with different diameters, the
direction of rotation when looking at the front of the single or the thicker shaft extension is
defined as follows:
● If you connect the line cables with phase sequence L1, L2, L3 to U, V, W or according to
NEMA at T1 T2 T3, then a clockwise phase sequence is obtained.
● If you interchange two connections, e.g. L1, L2, L3 at V, U, W or according to NEMA at
T2 T1 T3, then a counterclockwise phase sequence is obtained.
● On machines which are only allowed to run in one direction, the rating plate shows an arrow
which indicates the permitted direction of rotation, and it also specifies the terminal
connections in the required phase sequence.
Check the appropriate data before connecting the line feeder cables.
NOTICE
Incorrect direction of rotation
The machine will not be adequately cooled if it is operated other than how it was originally
ordered or with the incorrect direction of rotation. This can result in machine damage.
Observe the direction of rotation data on the nameplate.
6.4.7 Undrilled entry plate
If the entry plate is undrilled, you should match the number and size of the cable glands to the
operating conditions.
1. Unscrew the cable entry plate.
2. Drill the required number of holes or threads in the required size into the cable entry plate.
The thickness of the plate is selected in such a way as to give a sufficient number of turns
when the holes are tapped.
Please note that you are responsible for ensuring that the entry plate still has sufficient
strength after the holes have been drilled and tapped.
3. Mount the cable entry plate and the cables with the cable glands onto the terminal box.
Electrical connection
6.4 Preparation
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Drill holes in the cable entry plate
If you drill holes in the cable entry plate for explosion-protected motors, then document the data
about these holes in the motor documentation:
● Number and size of the holes
● Type of thread, e.g. metric or NPT
Data regarding the installation of pipes and accessories is provided in IEC / EN 60079-14.
6.5 Inserting and routing the cables
Table 6-2 Connection technology (with cable lug / connection without cable lug)
Terminal box Connection
GT640
With cable lug (Page 95)
Without cable lug (Page 96)
1XB1621
1XB1631
1XB7730
1XB7731
1XB7740
1XB7750
6.5.1 Bringing cables into the terminal box 1XB... with sealing insert with break-off ring
The 1XB1621, 1XB1631 terminal boxes can be equipped optionally with a sealing insert with
break-off ring. The connecting cable is sealed at the cable entry location using a cut-out sealing
insert and is fastened using a strain relief device.
Electrical connection
6.5 Inserting and routing the cables
SIMOTICS FD 1MH1
92 Operating Instructions 02/2019
Bringing cables into the terminal box and connecting them
The terminal box is opened, the cable cut to the correct length and stripped back. Make sure
that no external forces are acting on the cable connection.
1Pཱ཰ི
Figure 6-8 Strain relief device and sealing insert
Proceed as follows when connecting the cables:
1. Remove the top part of the strain relief ③ and release the fixing screws for the bottom part
of the strain relief ②. The strain relief device can be located either in the terminal box or
externally. If necessary, switch the direction sense of the strain relief device.
2. Cut the seal insert ① so that its opening is 1 to 3 mm smaller than the diameter of the cable.
3. Pull the sealing insert over the end of the cable.
4. Prepare the end of the cable depending on the cable and its use, e.g. with a cable lug.
5. Connect the ends of the cables to the terminals in accordance with the circuit diagram.
The circuit diagram is located in the cover of the terminal box.
Refer to the "Connecting cables..." section for more information.
6. You might need to use a sleeve made of suitable sealing tape to modify the diameter where
it passes through the sealing insert. Push the sealing insert onto the prepared sleeve.
7. Insert the cable with the seal insert in position into the gland opening. Screw the strain relief
device together once the cable is in a concentric position in the gland opening.
8. Secure the strain relief device.
9. Tighten the clamping screws of the strain relief device so that the cable is clamped as
necessary, but do not damage the cable insulation. We recommend a torque of 5 Nm.
10.Retighten the clamping screws after 24 hours.
WARNING
Damage to insulation
If you tighten the strain relief clip clamping screws too tightly this can damage the
insulation. Damaged insulation can result in arcing. This can result in death, serious injury
or material damage.
Tighten the strain relief clip clamping screws to the specified torque.
Electrical connection
6.5 Inserting and routing the cables
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6.5.2 Bringing cables into the terminal box 1XB... with cable gland
The connection cables are inserted into the terminal box via an exchangeable cable entry plate
or cable entry support. The cable entry plate is drilled by default. The cable glands are not
included in the standard scope of supply.
You can rotate the cable entry through 180°.
Table 6-3 Cable entry plate versions
Terminal box Standard
Cable entry plate with boreholes
Explosion protected version / op‐
tion L01
1XB1621 2 x M80 x 2 + 2 x M25 x 1.5
Undrilled (Page 91)
1XB1631 4 x M80 x 2 + 2 x M25 x 1.5
1XB7730 1 x M72 x 2 + 3 x M25 x 1.5
1XB7731 2 x M72 x 2 + 3 x M25 x 1.5
1XB7740 4 x M80 x 2 + 3 x M25 x 1.5
1XB7750 8 x M72 x 2 + 3 x M25 x 1.5
Insert the cable into the terminal box
Proceed as follows when introducing cables into the terminal box:
1. Unscrew the cable entry plate.
2. Drill the required number of holes or threads in the required size in the cable entry plate.
Ensure that the cable entry plate can be assembled after drilling and that it features
sufficient stiffness.
3. Fit the required cable glands.
4. Route the cables through the cable glands.
5. Fit the cable entry plate to the terminal box with the assembled cables.
6. Connect the ends of the cables to the terminals in accordance with the circuit diagram. The
circuit diagram is located in the cover of the terminal box.
Refer to Chapter "Connecting cables ..." for more information.
6.5.3 Certified cable entries, thread adapters and sealing plugs
Use only sealing plugs, cable entries & conductor entries and thread adapters that are certified
and marked for use in the respective hazardous zone.
Electrical connection
6.5 Inserting and routing the cables
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94 Operating Instructions 02/2019
6.5.4 Laying cables
● Lay the cables in accordance with IEC/EN 60364-5-52.
● For fixed cables, use EMC- and Ex-certified cable glands with strain relief. Screw the cable
glands into the threaded holes in the entry plate, which can be unscrewed. The cable glands
are not included in the scope of supply.
Comply with the installation and operation conditions specified in the certificate for these
cable glands and check that they have been fully complied with.
● For loose cables, use twist-protection cable glands with strain relief.
● Use shielded cables whose shields are conductively connected to a large area of the
terminal box of the motor via EMC cable glands.
● Arrange the exposed connecting cables in the terminal box so that the PE conductor has
excess length and the insulation of the cable strands cannot be damaged.
● In the case of aluminum connecting bars, insert a steel washer between the cable lug and
the connecting bar. This prevents contact corrosion.
● Correctly close and seal threads or holes that are not being used ensuring that the IP degree
of protection is maintained. The IP degree of protection is specified on the rating plate.
Replace the cable glands that are not being used by appropriately certified screw plugs.
6.5.5 Connecting cables with cable lugs
1. Select the cable lugs according to the required cable cross-section and fixing screw or stud
size. Information about the maximum cross-section for the respective standard terminal box
design can be found in the catalog.
A sloped/angular arrangement of the supply cables is only permitted provided the required
minimum air clearances are met.
2. Remove the insulation from the conductor ends so that the remaining insulation reaches
almost up to the cable lug ①. Connect only one conductor per cable lug.
3. Fasten the cable lug to the end of the conductor correctly, e.g. by squeezing.
Figure 6-9 Connection with cable lug and fixing screw (schematic diagram)
4. Insulate the cable lug sleeves where necessary to ensure minimum air clearances and the
creepage distance are maintained.
Electrical connection
6.5 Inserting and routing the cables
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Operating Instructions 02/2019 95
5. Place the cable lug on the terminal support. If you are using a disconnecting link, check its
positioning.
For terminal boxes 1XB7740 and 1XB7750, place the cable lug on the busbar.
6. Tighten the fixing element ② with the corresponding tightening torque:
Fixing element Tightening torque
Fastening screw M12 20 Nm
Fixing screws M16 40 Nm
Fixing nuts M12 20 Nm
Note
You can find more information in Chapter 2 of catalog D81.8.
WARNING
Explosion hazard if cable lugs without side guards are used
For cable cross-sections under 70 mm2, cable lugs without side guard may twist. The
minimum air clearances may be underrun and cause an explosion.
This can result in death, serious injury, or material damage.
● For cable cross-sections under 70 mm2, use only cable lugs with side guard.
● Make sure that the minimum air clearances (Page 100) are observed.
6.5.6 Connecting cables without cable lugs
Lug terminal connections - which are suitable for connecting flexible and stranded conductors
without the use of wire end ferrules - may be installed if ordered accordingly. If you wish to use
conductor end sleeves, then correctly crimp these onto the end of the conductor before
connecting up.
NOTICE
Overheating of the conductor ends
If the end of the conductor is not correctly enclosed by the wire end ferrule, but is trapped by
it, this can lead to overheating.
● Insert only one conductor end into each wire end ferrule, and attach the wire end ferrule
correctly.
● Insert only one conductor end into each terminal.
Electrical connection
6.5 Inserting and routing the cables
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96 Operating Instructions 02/2019
Procedure
When connecting, carefully maintain the minimum clearances and creepage distances.
1. Open the terminal box and cut the cable to the correct length.
The clips of the 1XB7730/1XB7731 terminal boxes can accept cables with maximum
185 mm² cross-section.
2. Prepare the end of the cable depending on the cable and its use. It is not permissible that
the cable connection is subject to external forces.
3. Insulate the conductor ends in such a way that the remaining insulation reaches almost up
to the cable lug.
4. Make sure the terminal clamps ③, ④ are arranged correctly for the size of the conductor.
Insert the cable into the terminal clamps. Tighten the clamping nuts ⑤ to the tightening
torque as specified in the following table.
Terminal box Tightening torque
GT640 / 1XB1621 / 1XB1631 / 1XB1634 8 Nm
1XB7730 / 1XB7731 4 Nm
1XB7740 / 1XB7750 8 Nm
Figure 6-10 Connection using terminal clamps (schematic diagram)
5. If you have loosened the terminal body clamping bolts ②, then retighten them with the
following torque:
Terminal box Tightening torque
1XB1621 / 1XB1631 / 1XB1634 40 Nm
GT640 / 1XB7730 / 1XB7731 / 1XB7740 / 1XB7750 20 Nm
For terminal boxes GT640, 1XB7730 and 1XB7731, fasten the terminal element ① using a
clamping nut M12 on the threaded stud of the terminal support with a torque of 20 Nm.
Lug terminal connections may be installed if ordered accordingly, which are suitable for
connecting flexible and stranded conductors without the use of wire end ferrules. If you wish to
Electrical connection
6.5 Inserting and routing the cables
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Operating Instructions 02/2019 97
use wire end ferrules, then before connecting the cable, attach these so as to form an
appropriate, current-carrying crimped joint at the end of the conductor.
WARNING
Danger of explosion if the conductor ends become too hot
If the end of the conductor is not correctly enclosed by the wire end ferrule, but is trapped by
it, this can lead to overheating. The temperature class of the machine can be exceeded. This
can trigger ignition of an explosive mixture. This can result in death, serious injury or material
damage.
● Insert only one conductor end into each wire end ferrule. Attach the wire end ferrule
correctly.
● Insert only one conductor end into each terminal.
6.5.7 Use of aluminum conductors
If you are using aluminum conductors, then comply with the following:
● Use only cable lugs that are suitable for connecting aluminum conductors.
● Immediately before inserting the aluminum conductor, remove the oxide layer from the
contact areas on the conductor and/or the mating piece. Do this using a brush or file.
● Then grease the contact areas immediately using neutral Vaseline. This prevents a new
oxide layer from forming.
NOTICE
Aluminum flow due to contact pressure
Aluminum flows following installation due to the contact pressure. The connection using
clamping nuts can loosen as a result. The contact resistance increases, obstructing the
current from being conducted. This can result in fire and material damage to the machine
– or even in total failure, as well as material damage to the plant or system due to machine
failure.
● Retighten the clamping nuts after approximately 24 hours and then again after
approximately four weeks. Make sure that the terminals are de-energized before you
tighten the nuts.
For 1XB7.. terminal boxes with aluminum connection bars, you can also connect copper cables
using copper cable lugs.
Electrical connection
6.5 Inserting and routing the cables
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98 Operating Instructions 02/2019
6.5.8 Using single-stranded cables
WARNING
High temperatures from induced eddy currents
With high currents and where several single-stranded cables are used instead of multiple-
stranded cables, high temperatures can result in the cable entry area due to induced eddy
currents. A short-circuit and an explosion may occur. This can result in death, serious injury,
or material damage.
● After commissioning, ensure that the temperature limits of the connected power cables are
not exceeded during operation. This temperature effect can be reduced by altering the
conditions at the entry points or by using modified cable entry plates after consultation with
the manufacturing plant.
● Use a cable entry plate made of non-ferrous metal.
6.5.9 Internal equipotential bonding
Between the ground terminal in the terminal box enclosure and the machine enclosure, the
fixing screws of the terminal box serve as PE conductor connection.
Between terminal box cover and terminal box enclosure, the cover fixing screws serve as
equipotential bonding.
A special external ground conductor is only installed if, for example, flat seals are mounted
without additional support.
When performing any installation work, you must always take care to ensure that all
equipotential bonding measures remain effective.
6.5.10 Stepless mating face for the seal in the terminal box cover
The sealing face of the terminal box cover is formed by the terminal box enclosure and the cable
entry element. Therefore make sure these parts are correctly aligned, so as to ensure the seal
and hence the degree of protection.
Align the cable entry support and the cable entry plate to the terminal box enclosure so that the
sealing surface between the terminal box and the terminal box cover form a flat face. There
must be no steps in the sealing area.
Electrical connection
6.5 Inserting and routing the cables
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6.5.11 Minimum air clearances
After proper installation, verify that the minimum air clearances between non-insulated parts
are maintained. Be aware of any protruding wire ends.
Table 6-4 Minimum air clearance dependent on rms value of the alternating voltage Urms
Rms value of the alternating voltage Vrms Minimum air clearance
≤ 500 V 8 mm
≤ 630 V 10 mm
≤ 800 V 12 mm
≤ 1000 V 14 mm
≤ 1250 V 18 mm
Values apply at an installation altitude of up to 2000 m.
When determining the required minimum air clearance, the voltage value in the table may be increased
by a factor of 1.1, so that the rated input voltage range is taken into account during general use.
6.5.12 Finishing connection work
1. Before closing the terminal box, please check that:
– The electrical connections in the terminal box have been made in accordance with the
specifications above and tightened with the correct tightening torque.
– The machine is connected in such a way that it rotates in the direction specified.
– The inside of the terminal box is clean and free of any cable debris, dirt and foreign
bodies.
– All of the seals and sealing surfaces of the terminal box are intact and in a good condition.
– Any unused cable entries are sealed with glued-in ferrous or certified sealing elements.
The sealing elements can only be removed with a tool.
– The connecting cables are laid in an open arrangement, so that the cable insulation
cannot be damaged during operation.
2. Close the terminal box with the cover fixing screws, see chapter Tightening torques for
screw and bolt connections (Page 179).
See also
Mounting/removing the terminal box (Page 87)
Electrical connection
6.5 Inserting and routing the cables
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6.6 Connecting the auxiliary circuits
6.6.1 Selecting cables
Take the following criteria into account when selecting the connecting cables for the auxiliary
circuits:
● Rated current
● Rated voltage
● System-dependent conditions, such as ambient temperature, routing type, cable cross-
section as defined by required length of cable, etc.
● Requirements according to IEC/EN 60204‑1
● Requirements according to IEC/EN 60079‑14
Use only sealing plugs, cable entries & conductor entries and thread adapters that are certified
and marked for use in the respective hazardous zone.
6.6.2 Bringing cables into the auxiliary terminal box and routing them
The required data for connecting the auxiliary circuits is located on the terminal diagram on the
inside of the respective auxiliary terminal or terminal box cover.
● In some cases a terminal strip is installed in the main terminal box for the auxiliary circuit
connections.
● The required stripped length on conductors for auxiliary terminals differs according to
terminal type (6 to 9 mm). When the length is correct, the conductor should reach the stop
in the terminal and at the same time the conductor insulation should reach the contact part
of the terminal.
Adapting the cable glands
A plate is bolted to the terminal box enclosure via a rectangular cutout through which the
connecting cables enter. The plate is generally delivered with threaded holes and cable glands.
1. Open the auxiliary terminal box and undo the cable entry plate screws. Depending on the
terminal box version, the cable entry plate is below a steel screening plate.
2. For the undrilled version, drill the required number of holes or threads in the required size
of the cable gland into the cable entry plate.
3. Mark the cables if necessary for subsequent assignment.
4. Pull the cables through the cable glands and the cable entry plate, and connect the cables.
5. Fit the cable entry plate.
6. Make sure that the seal on the screwed sockets for the cable glands satisfies the degree of
protection.
Electrical connection
6.6 Connecting the auxiliary circuits
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6.6.3 Intrinsically safe circuits for sensors or probes
Observe Standard IEC / EN 60079‑14 when selecting and routing connecting cables.
NOTICE
Intrinsically safe circuits for sensors or probes
If blue connection terminals are installed for sensors, you must connect them to certified
intrinsically safe circuits. This can otherwise result in damage.
Ensure that you also observe the additional requirements laid down in IEC / EN 60079-14 for
intrinsically safe equipment and the associated connecting cables.
NOTICE
Connecting the temperature sensors
Temperature sensors may be connected only to intrinsically safe circuits with certified
evaluation devices. The maximum permissible input currents and powers according to the EU
type-examination certificate may not be exceeded. This can otherwise result in damage.
If shielded, intrinsically safe temperature sensors are fitted or mounted, they must be
connected using the blue connecting terminals. The cable shield is grounded just once;
multiple grounding is not permitted.
6.6.4 Connect metal shield in the terminal box
If you are using metal-armored cables that are inserted into the terminal or auxiliary terminal
boxes with non-intrinsically safe circuits, then ground the metal shield in the terminal box.
Additional grounding points are permissible.
● In terminal boxes with internal grounding part, connect the metal shield to the internal
grounding point.
● In terminal boxes without internal grounding part, connect the metal shield to one of the
green-yellow grounding terminals.
6.6.5 Connecting temperature monitoring for the stator winding
The stator winding is monitored for thermal loading by temperature sensors embedded in the
stator winding.
Electrical connection
6.6 Connecting the auxiliary circuits
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The connecting cables of the temperature sensors are routed to the main or auxiliary terminal
box, depending on the version. The connection and assignment of the terminals is specified in
the circuit diagram.
WARNING
Hazard due to electric shock
The installation of the temperature sensors for the winding monitoring with respect to the
winding is implemented according to the requirements for basic insulation. The temperature
sensor connections are located in terminal boxes, safe to touch, and have no protective
separation. This is the reason that in the case of a fault, a hazardous voltage can be present
at the measuring sensor cable. When touched, this can result in death, severe bodily injury
and material damage.
● When connecting the temperature sensor to external temperature monitoring devices,
when required, apply additional measures to fully comply with the requirements set out in
IEC 60664-1 or IEC 61800-5-1 "Hazard due to electric shock”.
6.6.6 Terminating the connection work (auxiliary circuit)
1. Before closing the auxiliary terminal box, please check that:
– The cables are connected in accordance with the terminal diagram.
– The cables are freely arranged so that they cannot come into contact with the machine,
and the cable insulation cannot be damaged.
– The inside of the terminal box is clean and free of any cable debris, dirt and foreign
bodies.
– The cable glands are firmly tightened, are suitable with respect to the degree of
protection, type of cable routing, permissible cable diameter, etc., and have been
mounted in full compliance with specifications and regulations
– The threads in the connection plate are sealed using cable and conductor entries, thread
adapters or sealing plugs that achieve the respective degree of protection.
– Unused cable entries are sealed. The sealing elements are firmly screwed in, and can
only be released using a tool.
– All of the seals/gaskets and sealing surfaces of the terminal box are in good condition
– The screws of all of the screw clamps are fully tightened, even if they are not being used.
2. Close the auxiliary terminal box using the cover supplied for this purpose. See section
"Tightening torques for screw and bolt connections (Page 179)" for the tightening torque of
the fixing bolts for the cover.
Electrical connection
6.6 Connecting the auxiliary circuits
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Electrical connection
6.6 Connecting the auxiliary circuits
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Start-up 7
Observe the following when carrying out any work on the machine:
● Comply with the general safety instructions
● Comply with the applicable national and sector-specific regulations at the place of
installation
● When using the machine within the European Union, comply with the specifications laid
down in EN 50110‑1 regarding safe operation of electrical equipment.
See also
Safety information (Page 15)
7.1 Checks to be carried out prior to commissioning
Once the system has been correctly installed, you should check the following prior to
commissioning:
Note
Checks to be carried out prior to commissioning
The following list of checks to be performed prior to commissioning does not claim to be
complete. It may be necessary to perform further checks and tests in accordance with the
specific situation on-site.
● The machine is undamaged.
● The machine has been correctly installed and aligned, the transmission elements are
correctly balanced and adjusted.
● All fixing screws, connection elements, and electrical connections have been tightened to
the specified tightening torques.
● The operating conditions match the data provided in accordance with the technical
documentation, such as degree of protection, ambient temperature, etc..
● Moving parts such as the coupling move freely.
● All touch protection measures for moving and live parts have been taken.
● For test operation or when commissioning without output element, carefully secure the
feather key using a suitable security element. When doing this, take into account the
balancing type of the motor.
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Operating Instructions 02/2019 105
Second shaft extension
If the second shaft extension is not used:
● Carefully secure the feather key to prevent it from being thrown out, and for balancing type
"H" (standard type), ensure its weight is reduced to approximately 60 % of the original value.
● Using covers, carefully secure the unused shaft extension so that it cannot be touched.
Cooling
● Check that the machine cooling is available for commissioning.
Cooling water supply
● The cooling water supply is connected and ready for operation.
● The cooling water supply is switched on. The data can be found on the rating plate.
● Cooling water is available in the configured quality and quantity.
● The water cooling is switched on. The data can be found on the rating plate.
● Cooling water of the configured quality is used.
● The bearing insulation should be implemented as shown on the plates.
Electrical connection
● The grounding and equipotential bonding connections have been made correctly.
● The machine is connected so that it rotates in the direction specified.
● Appropriately configured control and speed monitoring functions ensure that the motor
cannot exceed the permissible speeds specified in the technical data. For this purpose,
compare the data on the rating plate or, if necessary, the system-specific documentation.
● The minimum insulation resistance values are within tolerance.
● Minimum air clearances have been maintained.
● Any supplementary motor monitoring devices and equipment have been correctly
connected and are functioning correctly.
● All brakes and backstops are operating correctly.
● At the monitoring devices, the values for "Warning" and "Shutdown" are set.
Start-up
7.1 Checks to be carried out prior to commissioning
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7.2 Converter operation
The following chapter is relevant only if the machine has been ordered for converter operation.
Note
The order number shows whether the machine was ordered for converter operation. In this
case, digits 1, 2, 3 or 4 is located at the 6th position of the order number.
Converter operation
● If the design of the motor requires connection to a particular converter type, the rating plate
will contain corresponding additional information.
● The converter is correctly parameterized. The parameterization data is specified on the
rating plate of the machine. Information about the parameters is available in the operating
instructions for the converter.
● Any supplementary motor monitoring devices and equipment have been correctly
connected and are functioning correctly.
● In continuous operation, the motor cannot exceed the specified upper speed limit nmax or
undershoot the lower speed limit nmin.
The permissible acceleration time to the limit speed nmin depends on the parameter
assignment.
WARNING
Dangerous voltage via the converter
As long as the feeding converter is switched on, or the DC link of the converter is not
discharged, there can be a voltage at the motor terminals even when the rotor is not moving.
The voltage is up to 1000 V, depending on the converter type.
Ensure that the five safety rules (Page 15) are followed before working on the motor.
7.3 Measuring the insulation resistance before commissioning
Measuring the insulation resistance and polarization index (PI) provides information on the
condition of the machine. It is therefore important to check the insulation resistance and the
polarization index at the following times:
● Before starting up a machine for the first time
● After an extended period in storage or downtime
● Within the scope of maintenance work
The following information is provided regarding the state of the winding insulation:
● Is the winding head insulation conductively contaminated?
● Has the winding insulation absorbed moisture?
Start-up
7.2 Converter operation
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Operating Instructions 02/2019 107
As such, you can determine whether the machine needs commissioning or any necessary
measures such as cleaning and/or drying the winding:
● Can the machine be put into operation?
● Must the windings be cleaned or dried?
Detailed information on testing and the limit values can be found here:
"Testing the insulation resistance and polarization index" (Page 61)
7.4 Greasing the roller bearings prior to commissioning
The following information assumes that the specified storage conditions have been complied
with.
General specifications
● Pay attention to the instructions on the lubricant plate.
● Regrease in portions. The shaft must rotate so that the new grease can be distributed in the
bearings.
Regreasing the roller bearings prior to commissioning
● If the period between delivery and commissioning is more than a year and less than four
years:
– Re-grease the roller bearings with twice the amount of grease specified on the lubricant
plate.
– Check the bearing temperature, as far as possible.
Regreasing roller bearings before commissioning
You must regrease the roller bearings under the following conditions:
● If the machine has been in storage for more than four years.
● If the machine has not been stored in accordance with the specifications in the "Storage"
section.
Procedure
1. Remove the bearing, regreasing pipes, grease nipples and the bearing cap.
2. Flush out the old grease.
3. Check the bearings before regreasing. If necessary, install new bearings.
4. Lubricate the bearings and reinstall the bearing components.
Start-up
7.4 Greasing the roller bearings prior to commissioning
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108 Operating Instructions 02/2019
See also
Regreasing intervals and types of grease for operating roller bearings (Page 138)
Stoppages (Page 122)
Transport (Page 44)
7.5 Setting the automatic regreasing system
The relubrication is performed depending on the external voltage present at the regreasing
system.
● Prior to commissioning, set the time interval and the relubrication quantity at the automatic
regreasing system.
● Observe the operating instructions for the regreasing system for its operation and the
replacement of the grease cartridges.
See also
Interlock circuit for the automatic regreasing system (option) (Page 41)
7.6 Setpoint values for monitoring the bearing temperature
Prior to commissioning
If the machine is equipped with bearing thermometers, set the temperature value for
disconnection on the monitoring equipment before the first machine run.
Table 7-1 Set values for monitoring the bearing temperatures before commissioning
Set value Temperature
Alarm 115 °C
Shutting down 120 °C
Normal operation
Determine the maximum operating temperature of the bearings Toperation taking into account the
temperature, bearing load and influences of the plant on the motor in °C. Set the values for
shutdown and warning corresponding to the operating temperature Top.
Table 7-2 Set values for monitoring the bearing temperatures
Set value Temperature
Alarm Toperation + 5 K ≤ 115 °C
Shutting down Toperation + 10 K ≤ 120 °C
Start-up
7.5 Setting the automatic regreasing system
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Operating Instructions 02/2019 109
7.7 Set values for monitoring the winding temperature
Prior to commissioning
Before running the machine for the first time, set the temperature value for shutdown on the
monitoring device.
Table 7-3 Set value for commissioning
Set value Temperature
Alarm 145° C
Shutting down 155° C
Normal operation
1. Measure the normal operating temperature Top at the installation location in ° C.
2. Set the values for shutdown and warning corresponding to the operating temperature Top.
Table 7-4 Set values during normal operation
Set value Temperature for insulation class 180(H), utilization 155(F)
Alarm Top + 10 K ≤ 145° C
Shutting down Top + 15 K ≤ 155° C
7.8 Test run
After installation or inspection, carry out a test run:
1. Start up the machine without a load. To do this, close the circuit breaker and do not switch
off prematurely. Check whether it is running smoothly.
Switching the machine off again while it is starting up and still running at slow speed should
be kept to a bare minimum, for example for checking the direction of rotation or for checking
in general.
Allow the machine to run down before switching it on again.
2. If the machine is running smoothly and evenly, switch on the cooling equipment. Continue
to observe the machine for a while in no-load operation.
Start-up
7.7 Set values for monitoring the winding temperature
SIMOTICS FD 1MH1
110 Operating Instructions 02/2019
3. If it runs perfectly, connect a load.
NOTICE
Thermal overload of motors connected directly to the line supply
In addition to the load torque, the ramp-up (accelerating) time is essentially influenced by
the moment of inertia to be accelerated. While ramping up when connected to the line
supply, the inrush (starting) current is a multiple of the rated current. This can result in
thermal overload. This can damage the motor.
As a consequence, when ramping up, observe the following:
● Monitor the ramp-up time and number of consecutive starts.
● Comply with the limit values and/or ramp-up conditions specified in the catalog or the
order documentation.
4. During the test run, check and document the following:
– Check whether it is running smoothly.
– Document the voltage, current and power values. As far as possible, document the
corresponding values of the driven machine.
– If this is possible using the available measuring equipment, check the bearing and stator
winding temperatures until they have reached steady-state values.
– Check the machine for noise or vibrations on the bearings or bearing shields as it runs.
5. In case of uneven running or abnormal noise, switch off the machine. As the machine runs
down, identify the cause.
– If the mechanical operation improves immediately after the machine is switched off, then
the cause is magnetic or electrical.
– If the mechanical running does not improve immediately after switching the machine off,
then the cause is mechanical.
- Imbalance of the electrical machine or the driven machine
- The machine set has not been adequately aligned
- The machine is being operated at the system resonance point. System = motor, base
frame, foundation, ...
NOTICE
Serious damage to the machine
If the vibration values in operation are not maintained in accordance with DIN ISO
10816-3, then the machine can be mechanically destroyed.
● During operation, observe the vibration values in accordance with DIN ISO 10816‑3.
Note
You can find more information in Chapter 2 of catalog D81.8.
Start-up
7.8 Test run
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Operating Instructions 02/2019 111
● If you want to start the machine for a trial run, ensure that it is connected to the cooling water
supply.
WARNING
Risk of burns from hot steam
If the cooling water supply fails, the motor will overheat. If cooling water enters the hot
cooling water tubes, hot steam will suddenly be generated, which then escapes under high
pressure. The cooling water system can burst. This can result in death, serious injury or
material damage.
● Do not connect the cooling water supply until the machine has cooled down.
7.9 Switching off
● If the controller does not do this automatically, switch on any anti-condensation heating
during stoppages. This will avoid the formation of condensation.
● Do not switch on the anti-condensation heating for at least two hours after the motor has
been switched off. This prevents damage to the winding insulation.
7.10 Setting the motor parameters at the converter
The selection of the motor type is used to pre-assign specific motor parameters and to optimize
the operating characteristics and behavior. If the incorrect motor type has been selected, then
this can result in undesirable operating states, for instance increased noise.
● If you use the SINAMICS G120/G150 or SINAMICS S120/S150 converter, you can set the
motor parameters using STARTER or the "Advanced Operating Panel" AOP30.
● If you use the SINAMICS G120P converter, you can set the motor parameters using the
"Intelligent Operator Panel" (IOP).
Note
Preset space-vector modulation for SINAMICS S converters
Unlike SINAMICS G converters, space-vector modulation is preset for SINAMICS S
converters. Provided permitted by the application, the space-vector modulation can be
changed manually to an optimized pulse pattern for SIMOTICS FD motors.
The SINAMICS parameter is p1802 = 19 in the STARTER and in the AOP30.
Start-up
7.9 Switching off
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112 Operating Instructions 02/2019
7.10.1 Selecting the motor type and motor data in the STARTER program
Prerequisites
● The motor is connected to the converter and is ready for operation.
● The converter must have at least software version 4.6.
● You have installed the STARTER software with at least version 4.3.1 with SSP, and you are
connected to the converter. You require SSP V4.6 for the SINAMICS G120P inverter.
● The STARTER program has been started. You are in the "Configuration" dialog screen form.
Selecting motor parameters
1. Enter a name for the motor in the "Motor name" input field.
Subsequent motor assignment is simplified by selecting a unique name.
2. Select the "Enter motor data" option.
3. In the "Motor type" field, select the entry "[14] SIMOTICS FD induction motor series".
Figure 7-1 Selecting a motor type
Start-up
7.10 Setting the motor parameters at the converter
SIMOTICS FD 1MH1
Operating Instructions 02/2019 113
4. Click "Continue" to confirm your entries.
5. Enter the appropriate motor data in the "Motor data" table in the "Value" column.
– You can find the values for parameters p304...p311 on the motor rating plate.
– The value for parameter p335 (motor cooling method) is encrypted from the motor order
number:
Motor order number Cooling method Parameter p335
1LL1 IC01 0
1LP1 IC06 1
1LM1/1MM1 IC411 4
1LQ1/1MQ1 IC416 5
1LH1/1MH1 IC71W 6
1LN1/1MN1 IC86W 6
Figure 7-2 Entering the motor data
6. Click "Continue" to confirm your entries.
Start-up
7.10 Setting the motor parameters at the converter
SIMOTICS FD 1MH1
114 Operating Instructions 02/2019
7.10.2 Commissioning at the SINAMICS S/G converter using the AOP30
In the AOP30, navigate as follows:
● Navigate within the selection fields using <F2> and <F3>.
● In the entry fields, you can either directly enter the required value or select it from a list.
● Activate the selection with <F5>.
Start-up
7.10 Setting the motor parameters at the converter
SIMOTICS FD 1MH1
Operating Instructions 02/2019 115
Selecting the motor type and motor data at the AOP30
1. In the dialog screen form, select the motor standard and motor type.
As motor type, select the entry "SIMOTICS FD induction motor series".
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– You can find the values for parameters p304...p311 on the motor rating plate.
– The value for parameter p335 (motor cooling method) is encrypted from the motor order
number:
Motor order number Cooling method Parameter p335
1LL1 IC01 0
1LP1 IC06 1
1LM1/1MM1 IC411 4
1LQ1/1MQ1 IC416 5
1LH1/1MH1 IC71W 6
1LN1/1MN1 IC86W 6
Start-up
7.10 Setting the motor parameters at the converter
SIMOTICS FD 1MH1
116 Operating Instructions 02/2019
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3. Exit the motor data input by selecting the "Continue" field and activating the selection with
<F5>.
Start-up
7.10 Setting the motor parameters at the converter
SIMOTICS FD 1MH1
Operating Instructions 02/2019 117
7.10.3 Commissioning at the SINAMICS G120P inverter using the IOP
The SINAMICS G120P provides the IOP (Intelligent Operator Panel) located in the enclosure
door for operating, monitoring, and commissioning tasks. It can be used to set the motor
parameters.
1. Select the "basic commissioning" wizard. Only so can you enter unusual frequencies, such
as 50.39 Hz or 100 Hz.
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2. Select "speed control" as control type.
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3. Select "SIMOTICS FD" as motor type. This sets specific motor parameters for optimizing
the operating behavior.
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4. Enter the performance plate data.
– Motor voltage
– Motor current
– Rated power
– Rated power factor cos φ
– Motor speed
The optimized pulse patterns are activated automatically once the "SIMOTICS FD" motor
type is selected (p300=14).
Start-up
7.10 Setting the motor parameters at the converter
SIMOTICS FD 1MH1
118 Operating Instructions 02/2019
Operation 8
8.1 Safety instructions for operation
Observe the following when carrying out any work on the machine:
● Comply with the general safety instructions
● Comply with the applicable national and sector-specific regulations.
● When using the machine within the European Union, comply with the specifications laid
down in EN 50110‑1 regarding safe operation of electrical equipment.
See also
Safety information (Page 15)
Risk of injury due to rotating parts
Rotating parts are dangerous. Touch protection against rotating parts is no longer guaranteed
if covers are removed. Touching rotating parts can result in death, serious injury or material
damage.
● Carefully ensure that all of the covers are closed while operational.
● First switch off and disconnect the machine if you must remove covers. Comply with the
"Five safety rules":
● Only remove the covers when the rotating parts have come to a complete standstill.
Danger as a result of stationary parts under voltage (live parts)
Live parts represent a hazard. Touch protection against active (live) parts is no longer
guaranteed if covers are removed. The minimum air and creepage distances may be fallen
below (violated) when coming close to active parts. Touching or coming close can result in
death, serious injury or material damage.
● Carefully ensure that all of the covers are closed while operational.
● First switch off and disconnect the machine if you must remove covers. Comply with the
"Five safety rules":
● When the machine is in operation, the terminal boxes must remain closed at all times.
Terminal boxes may be opened only when the machine is stopped and in a no-voltage
condition.
SIMOTICS FD 1MH1
Operating Instructions 02/2019 119
Faults in operation
Any changes with respect to the normal condition can indicate that the machine is not
functioning correctly.
● Higher power consumption, temperatures or vibration levels.
● Unusual noise or smells.
● Monitoring devices respond.
These changes can cause faults which can result in eventual or immediate death, serious injury
or material damage.
● Immediately inform the service personnel.
● If you are in doubt, immediately switch off the machine, carefully observing the system-
specific safety conditions.
Damage caused by condensation
Humidity in the air can condense for intermittent duty or load fluctuations. Condensate can
collect. Moisture can have a negative impact on the winding insulation or result in damage, such
as corrosion.
● Ensure that any condensation can freely flow away.
Risk of burn injuries as a result of hot surfaces
Individual machine parts can become hot in operation. Burns can result when coming into
contact with these parts.
● Never touch machine parts during operation.
● Allow the machine to cool down before starting work.
● Check the temperature of parts before touching them. If required, wear suitable protective
equipment.
Excessively high machine temperature when heating is switched on
If the anti-condensation heating is operated while the machine is running, this can increase the
temperatures inside the machine. Material damage can result.
● Make sure that the anti-condensation heating is switched off before the machine is switched
on.
● Only operate anti-condensation heating when the machine is switched off.
Explosion hazard if the bridging is removed from the insulated bearing
Removing the factory-fitted bridging of the insulated bearing leads to potential differences
between the rotor and the grounded motor. This can cause the generation of sparks, which
Operation
8.1 Safety instructions for operation
SIMOTICS FD 1MH1
120 Operating Instructions 02/2019
especially in an explosive atmosphere can ignite surrounding dust or combustible gases.
Explosions can occur. There is also a risk of an electric shock. Death, serious injury, or material
damage will result.
● Do not open the bridging of the bearing insulation during operation.
8.2 Operation in hazardous areas of Zone 2
Safe handling
In addition to the danger notices in the previous section, the following also applies:
Electrical systems in hazardous zones must be mounted, installed, and operated in
accordance with the applicable rules and regulations. It is assumed that companies operating
these plants and systems take the appropriate measures to ensure that these regulations and
directives are observed during mounting, installation and operation, and that the appropriate
tests are carried out. We recommend that these tests be carried out and documented in
coordination with the responsible authorities.
System-specific ignition hazards
The criteria for the respective zonal classification are not harmonized and the assessment of
the operational risks, the local operating conditions and the various monitoring methods are not
standard. As a consequence, the remedial measures recommended by the supervisory
authorities may also differ depending on the authority's area of responsibility. The machine
manufacturer cannot provide general recommendations in this regard.
Note
Binding clarification of the local risks and of any required measures can only be provided by the
company operating the plant or system in agreement with the supervisory authority
responsible. The risk assessments from IEC / EN 60079-15 or -7 can be used to assess system-
specific ignition hazards.
If you using antifreeze in the cooling water, ensure that the coolant temperature does not fall
below -15 °C.
Operation
8.2 Operation in hazardous areas of Zone 2
SIMOTICS FD 1MH1
Operating Instructions 02/2019 121
8.3 Switching on the machine
1. If at all possible, run the machine without load and check that it is running smoothly.
2. If it runs perfectly, connect a load.
NOTICE
Thermal overload of motors connected directly to the line supply
In addition to the load torque, the ramp-up (accelerating) time is essentially influenced by
the moment of inertia to be accelerated. While ramping up when connected to the line
supply, the inrush (starting) current is a multiple of the rated current. This can result in
thermal overload. This can damage the motor.
As a consequence, when ramping up, observe the following:
● Monitor the ramp-up time and number of consecutive starts.
● Comply with the limit values and/or ramp-up conditions specified in the catalog or the
order documentation.
3. If this is possible using the available measuring equipment, check the bearing and stator
winding temperatures.
8.4 Regreasing roller bearings
Refer to the regreasing instructions for the roller bearings on the lubricant plate.
8.5 Stoppages
The stoppage is a shutdown for a period of time, during which the machine is stopped but
remains at the location of use.
Under normal ambient conditions, e. g. the stopped machine is not exposed to any vibration, no
increased level of corrosion, etc. in general, the following measures are necessary during
stoppages.
NOTICE
Damage due to improper storage
Damage may occur to the motor if it is not stored properly.
If the machine is to be taken out of operation for more than 12 months, suitable anti-corrosion,
preservation, packaging, and drying measures must be taken.
See also
Transport (Page 44)
Start-up (Page 105)
Operation
8.3 Switching on the machine
SIMOTICS FD 1MH1
122 Operating Instructions 02/2019
8.5.1 Avoidance of frost and corrosion damage in the cooling system
● For avoidance of frost and corrosion damage, completely drain the water from the cooling
system. Then blow air through the cooling system to dry it.
If the cooling system cannot be drained because standby capability is required at short
notice, protect the cooling circuit against frost and corrosion damage. To do this, add
suitable additives to the cooling water.
NOTICE
Impairment of the heat transport
Additives such as anti-freeze and corrosive inhibitor can impair the heat transport.
Operate the motor only with the contractually agreed water quality.
For avoidance of deposits, the cooling water circuit must then be kept running. So as to be
certain of excluding the possibility of formation of condensation within the machine, the anti-
condensation heating should also remain switched on (if fitted).
8.5.2 Avoidance of condensation or formation of condensation within the machine
● If the controller does not do this automatically, switch on any anti-condensation heating
during stoppages. This will avoid the formation of condensation.
● Do not switch on the anti-condensation heating for at least two hours after the motor has
been switched off. This prevents damage to the winding insulation.
WARNING
Explosion hazard
If the anti-condensation heating is switched on directly after the machine is switched off, the
temperature class or the maximum surface temperature of the machine can be exceeded.
In an explosive atmosphere, there is a risk of an explosion. This can result in death, serious
injury or material damage.
● Only switch on the anti-condensation heating after the motor has been switched off.
Carefully comply with the data on the anti-condensation heating plate.
Operation
8.5 Stoppages
SIMOTICS FD 1MH1
Operating Instructions 02/2019 123
8.5.3 Avoidance of damage to roller bearings during stoppages
Extended stoppages at the identical or almost identical resting position of the roller bearings
can lead to damage such as brinelling or corrosion, for example.
● During stoppages, regularly start the machine up for a brief period once a month. As a
minimum, rotate the rotor several times.
If you have uncoupled the machine from the driven machine and secured the rotor with a
rotor shipping brace, then remove this before turning the rotor over or starting the machine
up.
Make sure that the resting position of the roller bearings after the rotor has been turned over
is different from what it previously had been. Use the fitted key or the coupling halves as
reference markers.
● During re-commissioning, refer to the information in the "Commissioning" section.
See also
Start-up (Page 105)
8.5.4 Measurement of the insulation resistance after an extended stoppage
Measuring the insulation resistance and polarization index (PI) provides information on the
condition of the machine. It is therefore important to check the insulation resistance and the
polarization index at the following times:
● Before starting up a machine for the first time
● After an extended period in storage or downtime
● Within the scope of maintenance work
The following information is provided regarding the state of the winding insulation:
● Is the winding head insulation conductively contaminated?
● Has the winding insulation absorbed moisture?
As such, you can determine whether the machine needs commissioning or any necessary
measures such as cleaning and/or drying the winding:
● Can the machine be put into operation?
● Must the windings be cleaned or dried?
Detailed information on testing and the limit values can be found here:
"Testing the insulation resistance and polarization index" (Page 61)
Operation
8.5 Stoppages
SIMOTICS FD 1MH1
124 Operating Instructions 02/2019
8.6 Decommissioning the machine
NOTICE
Damage as a result of an extended period out of service
If the machine is going to be out of service for longer than six months, then take the necessary
measures for preservation and storing. Otherwise damage to the machine will result.
Record the decommissioning steps. This log will be useful upon recommissioning.
8.7 Switching off the water-cooling system
● Switch off the water-cooling system after switching off the machine. Condensation can form
inside the machine if cooling water flows while the machine is at a standstill.
● Only switch off the water cooling system once the machine has cooled down. This will
prevent the accumulation of residual heat.
8.8 Draining the coolant
If you take the machine out of service, drain the coolant if this is necessary for the ambient
conditions.
Type of construction IM B3
Use the coolant drain hole ② in the bearing shield to drain the coolant.
Operation
8.6 Decommissioning the machine
SIMOTICS FD 1MH1
Operating Instructions 02/2019 125
①Coolant connection
②Coolant connection and coolant drain hole
Other types of construction
In other types of construction, you must blow the coolant out with compressed air.
8.9 Re-commissioning the machine
When you re-commission the machine, proceed as follows:
● Study the record made when the machine was decommissioned, and reverse the measures
that were taken for conservation and storage.
● Perform the measures listed in the "Commissioning" section.
See also
Start-up (Page 105)
8.10 Switching on again after an emergency switching-off
● Check the machine before recommissioning the driven machine after an Emergency Off.
● Eliminate all the causes that have led to the emergency off
Operation
8.9 Re-commissioning the machine
SIMOTICS FD 1MH1
126 Operating Instructions 02/2019
8.11 faults
8.11.1 Inspections in the event of faults
Natural disasters or unusual operating conditions, such as overloading or short circuit, are
faults that overload the machine electrically or mechanically.
Immediately perform an inspection after such faults.
Correct the cause of the fault as described in the respective remedial measures section. Repair
any damage to the machine.
Operation
8.11 faults
SIMOTICS FD 1MH1
Operating Instructions 02/2019 127
8.11.2 Electrical faults
Note
If you are operating the motor with a converter, the operating instructions of the converter must
also be observed if electrical faults occur.
Table 8-1 Electrical faults
↓ Motor fails to start
↓ Motor accelerates sluggishly
↓ Rumbling noise during startup
↓ Rumbling noise during operation
↓ High temperature rise during no-load operation
↓ High temperature rise with load
↓ High temperature rise of individual winding sections
Possible causes of faults Remedial measures
X X X X Overload Reduce the load.
X Interrupted phase in the supply cable Check the switches and cables.
X X X X Interrupted phase in the feeder cable af‐
ter switching on
Check the switches and cables.
X Mains voltage too low, frequency too high Check the power supply conditions.
X Mains voltage too high, frequency too low Check the power supply conditions.
X X X X X Stator winding incorrectly connected Check the winding connection in the terminal box.
X X X X Winding short circuit or phase short cir‐
cuit in stator winding
Determine the winding resistances and insulation
resistances. Carry out repair work after consulta‐
tion with the manufacturer.
X Incorrect direction of rotation Check the connection.
8.11.3 Mechanical faults
The following table shows the possible causes of and remedial measures for mechanical faults.
Table 8-2 Mechanical faults
↓ Grinding noise
↓ Overheating
↓ Radial vibrations
↓ Axial vibrations
Possible causes of faults Remedial measures
X Rotating parts are grinding Establish the cause and realign the parts.
X Rotor not balanced Decouple the rotor and then rebalance it.
X Rotor out of true, shaft bent Contact the Service Center.
Operation
8.11 faults
SIMOTICS FD 1MH1
128 Operating Instructions 02/2019
↓ Grinding noise
↓ Overheating
↓ Radial vibrations
↓ Axial vibrations
Possible causes of faults Remedial measures
X X Poor alignment Align the machine set and check the coupling. 1)
X Coupled machine not balanced Rebalance the coupled machine.
X Shocks from coupled machine Examine the coupled machine.
X X Resonance of the overall system comprising mo‐
tor and foundation
Reinforce the foundation after prior consultation with the
Service Center.
X X Changes in foundation Determine the cause of the changes and, if necessary,
rectify. Realign the machine.
X Reduced air supply, direction of rotation of fan
possibly incorrect
Check the air ducts; clean the machine.
X X Uneven gearbox operation Resolve any gearbox faults.
1) Take into account possible changes which may occur during overheating.
Operation
8.11 faults
SIMOTICS FD 1MH1
Operating Instructions 02/2019 129
8.11.4 Water cooling faults
The following table shows the possible causes of and remedial measures for faults on water-
cooled machines.
Table 8-3 Cooling system faults
↓ Overheating
↓ Water leaking
Possible causes of faults Remedial measures
X Reduced cooling Check the cooling water flow, increase the amount of cooling water if
necessary.
X Cooling water flow rate too low Consult the manufacturer. If the specified cooling water quality is ob‐
served, the cooling system is maintenance-free.
X Inlet temperature too high Set the correct upstream temperature.
X Cooling water supply switched off Switch on the cooling water supply.
X Cooling water contains too many or unsuit‐
able antifreeze and corrosion-protection
agents
Use cooling water of the agreed quality.
X Leaks in the cooling system Consult the manufacturer.
X Defective cooling water connection Find the leak and seal it.
Operation
8.11 faults
SIMOTICS FD 1MH1
130 Operating Instructions 02/2019
8.11.5 Roller bearing faults
Damage to roller bearings can be difficult to detect in some cases. If in doubt, replace the
bearing. Use other bearing designs only after consulting the manufacturer.
Table 8-4 Roller bearing faults
↓ Bearing overheats
↓ Bearing "whistles"
↓ Bearing "knocks"
Possible causes of faults Remedial measures
X High coupling pressure Align the machine more accurately.
X Belt tension too high Reduce the drive belt tension.
X Bearing contaminated Clean or replace the bearing. Check the seals.
X High ambient temperature Use a suitable high-temperature grease.
X X Insufficient lubrication Grease the bearings as instructed.
X X Bearing canted Properly install the bearing.
X X Insufficient bearing play Contact the Service Center.
X Excessive bearing play Contact the Service Center.
X X Bearing corroded Replace the bearing. Check the seals.
X Too much grease in bearing Remove surplus grease.
X Wrong grease in the bearing Use the correct grease.
X Friction marks on raceway Replace the bearing.
X Brinelling or scoring Replace the bearing. Avoid any vibration at standstill
Operation
8.11 faults
SIMOTICS FD 1MH1
Operating Instructions 02/2019 131
Operation
8.11 faults
SIMOTICS FD 1MH1
132 Operating Instructions 02/2019
Maintenance 9
Through careful and regular maintenance, inspections, and overhauls you can detect faults at
an early stage and resolve them. This means that you can avoid consequential damage.
Operating conditions and characteristics can vary widely. For this reason, only general
maintenance intervals can be specified here. Maintenance intervals should therefore be
scheduled to suit the local conditions (dirt, starting frequency, load, etc.).
Observe the following when carrying out any work on the machine:
● Comply with the general safety instructions
● Comply with the applicable national and sector-specific regulations.
● When using the machine within the European Union, comply with the specifications laid
down in EN 50110‑1 regarding safe operation of electrical equipment.
See also
Safety information (Page 15)
Comply with the IEC / EN 60079‑17 standard during all service and maintenance work on the
machine.
Note
Please contact the service center (Page 177), if you require support with service, maintenance
or repair.
9.1 Inspection and maintenance
9.1.1 Safety instructions for inspection and maintenance
Danger as a result of stationary parts under voltage (live parts)
Live parts represent a hazard. Touch protection against active (live) parts is no longer
guaranteed if covers are removed. The minimum air and creepage distances may be fallen
SIMOTICS FD 1MH1
Operating Instructions 02/2019 133
below (violated) when coming close to active parts. Touching or coming close can result in
death, serious injury or material damage.
● Take the machine out of operation.
● Switch off the machine and ensure that it is in a no-voltage condition. Carefully comply with
the "5 safety rules".
● Only open the terminal box when the motor is stationary and in a no voltage condition.
Risk of injury due to rotating parts
Rotating parts are dangerous. Touch protection against rotating parts is no longer guaranteed
if covers are removed. Touching rotating parts can result in death, serious injury or material
damage.
● Before carrying out any repair work on the machine, take it out of operation, and carefully
lock it out so that it cannot be switched on again.
● Only remove the covers when the rotating parts have come to a complete standstill.
Risk of burn injuries due to hot surfaces
In operation, the temperature of individual machine parts can increase - and only decrease
slowly after switching off. You can burn yourself if you touch hot surfaces.
● Allow the machine to cool before starting any maintenance and service work on the machine.
● Check the temperature of parts before touching them. If required, wear suitable protective
equipment.
Damage if the machine is not maintained
The machine can be damaged if it is not appropriately maintained. This can cause faults which
can result in eventual or immediate death, serious injury or material damage.
● Maintain the machine at the specified maintenance intervals.
Damage from foreign bodies in the machine
Foreign bodies such as dirt, tools or loose components can be left by accident inside the
machine after maintenance is performed. These can cause short circuits, reduce the
performance of the cooling system or increase noise in operation. They can also damage the
motor.
● Ensure that no foreign bodies are left in or on the motor.
● Securely attach all loose parts once you have completed the work.
● Carefully remove any dirt.
Maintenance
9.1 Inspection and maintenance
SIMOTICS FD 1MH1
134 Operating Instructions 02/2019
WARNING
Risk of explosion due to static charging
If you clean the machine with compressed air, plastic components may become statically
charged and create a potentially explosive atmosphere. An explosion can occur. This can
result in death, serious injury or material damage.
● Do not use compressed air to clean plastic parts in an explosive atmosphere.
● When cleaning the machine, make sure that the air in the vicinity of the machine is free of
gas and dust.
9.1.2 Measuring the insulation resistance during the course of maintenance work
Measuring the insulation resistance and polarization index (PI) provides information on the
condition of the machine. It is therefore important to check the insulation resistance and the
polarization index at the following times:
● Before starting up a machine for the first time
● After an extended period in storage or downtime
● Within the scope of maintenance work
The following information is provided regarding the state of the winding insulation:
● Is the winding head insulation conductively contaminated?
● Has the winding insulation absorbed moisture?
As such, you can determine whether the machine needs commissioning or any necessary
measures such as cleaning and/or drying the winding:
● Can the machine be put into operation?
● Must the windings be cleaned or dried?
Detailed information on testing and the limit values can be found here:
"Testing the insulation resistance and polarization index" (Page 61)
9.1.3 Inspections in the event of faults
Natural disasters or unusual operating conditions, such as overloading or short circuit, are
faults that overload the machine electrically or mechanically.
Immediately perform an inspection after such faults.
Maintenance
9.1 Inspection and maintenance
SIMOTICS FD 1MH1
Operating Instructions 02/2019 135
9.1.4 First service after installation or repair
Perform the following checks after approximately 500 operating hours or at the latest six
months after commissioning:
Table 9-1 Checks after assembly or repair
Check When the
motor is
running
At stand‐
still
The stated electrical characteristics are being observed. X
The permissible bearing temperatures are not exceeded (Page 109). X
The smooth running characteristics and machine running noise have not
deteriorated.
X
The motor foundation has no cracks and indentations. (*) X X
(*) You can perform these checks while the motor is running or at a standstill.
Additional tests may also be required according to the system-specific conditions.
NOTICE
Machine damage
When carrying out the inspection, if you detect any impermissible deviations from the normal
state, you must rectify them immediately. They may otherwise cause damage to the machine.
9.1.5 General inspection
Check that the installation conditions are observed. We recommend that the following checks
are performed after approx. 16 000 operating hours or at the latest after two years:
Table 9-2 Checks that have to be performed during the general inspection
Checking When the
motor is
running
At stand‐
still
The electrical parameters are maintained X
The permissible bearing temperatures are not exceeded (Page 109) X
The smooth running characteristics and machine running noise have not
deteriorated
X
The motor foundation has no cracks and indentations (*) X X
The machine is aligned within the permissible tolerance ranges X
All the fixing bolts/screws for the mechanical and electrical connections have
been securely tightened
X
All the potential connections, grounding connections and shield supports are
correctly seated and properly bonded
X
The winding insulation resistances are sufficiently high X
Maintenance
9.1 Inspection and maintenance
SIMOTICS FD 1MH1
136 Operating Instructions 02/2019
Checking When the
motor is
running
At stand‐
still
Any bearing insulation is fitted as shown on the plates and labels X
The CABLES and insulating parts and components are in good condition and
there is no evidence of discoloring
X
(*) You can perform these checks while the motor is at standstill or, if required, while running.
NOTICE
Machine damage
When carrying out the inspection, if you detect any impermissible deviations from the normal
state, you must rectify them immediately. They may otherwise cause damage to the machine.
See also
Set values for monitoring the winding temperature (Page 110)
Checking the cooling system
● With the machine stopped, check the condition of the cooling system:
– The cooling system is in good condition.
– The pressure drop between entry and exit has not increased appreciably.
9.1.6 Servicing and maintaining the anti-condensation heating
The anti-condensation heating is maintenance-free. If it is defective, contact the Service Center
(Page 177).
9.1.7 Assessing the roller bearings
To assess the roller bearings, it is generally not necessary to dismantle the machines. The
motor only has to be dismantled if the bearings are to be replaced.
The state of a roller bearing can be assessed by analyzing the bearing vibration. The measured
values provide an indication and can be assessed by specialists. Contact the Service Center.
Maintenance
9.1 Inspection and maintenance
SIMOTICS FD 1MH1
Operating Instructions 02/2019 137
WARNING
Explosion hazard due to overheating of the rolling bearings
If the rolling bearings are not regularly regreased, local overheating may be possible, and, as
a consequence, an explosion in an explosive atmosphere. This can result in death, serious
injury, or material damage.
● Regrease the rolling bearings regularly according to the lubrication plate.
● Implement bearing temperature monitoring if not yet in existence.
9.1.8 Roller bearings with automatic regreasing system
The roller bearings are supplied with new grease by the regreasing system.
● Replace the grease cartridge timely.
● Observe the operating instructions for the regreasing system when replacing the grease
cartridges.
See also
Interlock circuit for the automatic regreasing system (option) (Page 41)
● Only use the grease that is specified on the lubricant plate.
9.1.9 Regreasing intervals and types of grease for operating roller bearings
The specified grease data applies to the data specified on the rating plate and for high-quality
grease in accordance with the specifications in these operating instructions. Because these
greases exceed significantly the requirements according to DIN 51825 and ISO 6743‑9, they
permit the specified relubrication intervals.
Initial lubrication
The grease specified on the lubricant plate is selected according to the operating conditions
known at the time of ordering and should be used for initial lubrication.
Criteria for selecting rolling bearing greases
High quality ISO‑L‑X BDEA3 lubricating grease according to ISO 6743-9 and K3K‑20
lubricating grease according to DIN 51825 with lithium soap as a thickener and an upper
service temperature of at least +130° C / +266° F are permissible for standard applications
without special requirements.
● The technical data of the rolling bearing grease must be suitable for the application.
● Only use the grease type that is specified on the lubricant plate.
Maintenance
9.1 Inspection and maintenance
SIMOTICS FD 1MH1
138 Operating Instructions 02/2019
● If the operating conditions differ from those mentioned, other lubricating greases may only
be used after prior consultation with the manufacturer.
● If lubricating greases other than those named on the lubricant plate are used, it cannot be
guaranteed that they are compatible with the complete system.
– If you use lubricating greases that satisfy only the minimum requirements of DIN 51825
or ISO 6743-9, then reduce the lubrication intervals by half or adapt them as appropriate.
– If in doubt, consult the manufacturer.
● The lubrication properties will be impaired if you mix different lubricating greases. This can
result in material damage. Only the manufacturer can provide a guarantee for the miscibility
of particular lubricating greases.
● The lubricating grease must satisfy the criteria listed in the table below and must match the
operating conditions. If different special lubricating greases are stated on the lubricant plate,
then different criteria apply.
Table 9-3 Criteria for selecting rolling bearing greases
Criteria Standard Property, characteristic value Unit
Type of base oil - Mineral oil -
Thickener - Lithium -
Consistency in accordance with
NLGI class
DIN 51818 ● "3" for vertical and horizontal types of
construction
● "2" alternatively for horizontal type of
construction with reduced lubrication interval
-
Operating temperature range - At least -20° C ... +130° C °C
Dropping point DIN ISO 2176 At least +180° C °C
Basic oil viscosity DIN 51562-1 ● Approx. 100 mm²/s at 40 °C
● Approx. 10 mm²/s at 100 °C
mm²/s
Additives - ● Anti-Oxidation (AO), Anti-Wear (AW)
● No solid lubricants
● Alternatively: Extreme-pressure (EP) only after
prior consultation with grease and bearing
manufacturers
-
FE9 test: A/1500/6000 DIN 51821-1/-2 F10 ≥50 h at +130 °C
F50 ≥100 h at +130 °C
H
Behavior in the presence of water DIN 51807 0 or 1 at a test temperature of +90° C -
Corrosive effect on copper DIN 51811 0 or 1 at a test temperature of +120° C Korr.°
Corrosion resistance (EMCOR) DIN 51802 /
ISO 11007
0 - 0 Korr.°
Solid matter content, particle sizes >
25 µm
DIN 51813 <10 mg/kg mg/kg
Suitability of bearings
Speed parameter nxdm
- Suitable for the built-in motor bearings, seals and
these speeds
-
mm/min
Maintenance
9.1 Inspection and maintenance
SIMOTICS FD 1MH1
Operating Instructions 02/2019 139
Recommended greases for rolling bearings
For standard applications, the following high-quality greases are recommended for rolling
bearings for vertical and horizontal motor constructions due to their technical properties:
Table 9-4 Rolling bearing greases for vertical and horizontal types of construction
Manufacturer Grease type
Shell Gadus S2 V100 3
ExxonMobil/Esso Unirex N3
BP Energrease LS3
Fuchs Renolit H443 HD88
Lubcon Turmoplex 3
Addinol LM 3 EP
FAG Arcanol Multi 3
For motors of horizontal construction you can alternatively use greases with NLGI class 2.
However, this reduces the lubrication interval by 20%.
Table 9-5 Alternative greases with NLGI class 2 for motors of horizontal construction
Manufacturer Grease type
Shell Gadus S2 V100 2
ExxonMobil/Esso Unirex N2
BP Energrease LS2
Castrol Longtime PD2
Lubcon Turmogrease L 802 EP plus
Shell Retinax LX2
FAG Arcanol Multi 2
Lubrication data
The following data is provided on the lubricant plate of the machine.
● Regreasing intervals in operating hours
● Regreasing amount in grams
● Grease type
Grease replacement intervals
The grease replacement intervals in these operating instructions or the regreasing intervals
indicated on the plate apply to the following conditions:
● Normal load
● Operation at speeds in accordance with rating plate
● Low-vibration operation
Maintenance
9.1 Inspection and maintenance
SIMOTICS FD 1MH1
140 Operating Instructions 02/2019
● Neutral ambient air
● High-quality rolling bearing greases
In the case of unfavorable operating conditions, reduce the relubrication intervals after prior
consultation with the manufacturer.
Regreasing rolling bearings
Regrease the rolling bearings at the latest every 12 months irrespective of the actual number
of operating hours. The regreasing intervals for rolling bearings differ from the service intervals
for the machine. The rolling bearings may be damaged if the relubrication intervals are not
complied with. Pay attention to the instructions on the lubricant plate.
1. Clean the grease nipple.
2. Rotate the shaft when regreasing, so that the new grease can be distributed throughout the
bearing.
Motors that are operated with converters: Regrease the bearings at a low to medium speed
(nmin = 250 rpm, nmax = 3600 rpm) to ensure an even distribution of grease.
WARNING
Risk of injury due to rotating parts
The shaft must rotate to allow the grease to be distributed. This can result in death, serious
injury or material damage.
● When regreasing, pay attention to all rotating components.
3. Gradually press in an appropriate type and amount of grease, as stamped on the lubricant
plate and specified in these operating instructions - max. 50 g per 30 min.
The rolling bearing temperature rises sharply at first, then drops to the normal value again
when the excess grease is displaced out of the bearing.
The used grease collects outside each bearing in a spent grease chamber.
Greasing the rolling bearings prior to commissioning
When properly stored prior to commissioning for a longer period of time, normally the grease
in the bearings does not deteriorate within two years.
● When commissioning, the bearings must be relubricated with twice the amount of
lubricating grease. When doing this, the shaft must rotate so that the grease is replaced in
the bearings.
● Carefully observe the information relating to long-term storage.
Maintenance
9.1 Inspection and maintenance
SIMOTICS FD 1MH1
Operating Instructions 02/2019 141
9.1.10 Sealing the rolling-contact bearings ("Increased degree of protection" option)
Relubricating the grease tank
In order to achieve optimum sealing of the rolling contact bearings and to reliably seal the
labyrinth joints with grease, the chamber must be relubricated at regular intervals. The
procedure is the same as that for lubricating grease. The sealing effect during operation is
optimum as long as a small amount of relatively clean grease is forced out.
Regreasing intervals
The necessary relubrication intervals depend essentially on the level of dirt in the environment
and on the ON time of the motor. For this reason, they can only be defined taking into account
the respective operating conditions. Make sure that the groove in the seal is full of grease at all
times.
9.1.11 Cleaning the cooling water ducts
To ensure proper functioning of the machine cooling system, the cooling water ducts must be
free of dirt deposits.
● Have the cooling water ducts cleaned by a specialist company. Cleaning devices are
connected to the coolant connections. Dirt is dissolved and rinsed out through the circulation
of suitable solutions in the cooling water ducts.
● You can also remove limescale deposits with a commercially available scale solvent.
9.1.12 Touch up any damaged paintwork
If the paint is damaged, it must be repaired in order to protect the unit against corrosion.
Note
Paint system
Contact the Service Center (Page 177) before you repair any paint damage. They will provide
you with more information about the correct paint system and methods of repairing paint
damage.
Maintenance
9.1 Inspection and maintenance
SIMOTICS FD 1MH1
142 Operating Instructions 02/2019
9.1.13 Repainting
WARNING
Explosion hazard caused by incorrect painting
The paint coat can become electrostatically charged where there is a thick coat. Electrostatic
discharges can occur. There is a risk of explosion if potentially explosive mixtures are also
present at this moment. This can result in death, serious injury or material damage.
You must comply with one of the following requirements when you repaint painted surfaces:
● Limit the total paint film thickness according to the explosion protection group:
– IIA, IIB: Total paint coating thickness ≤ 2 mm
– IIC: Overall coating thickness ≤ 0.2 mm for motors of group II (gas)
● Limit the surface resistance of the paint used:
– Surface resistance ≤ 1 GΩ for motors of groups II and III (gas and dust)
● Charge transfer limit
– 60 nC for Group I or Group IIA devices
– 25 nC for Group IIB devices
– 10 nC for Group IIC devices
– 200 nC for Group III devices (values not valid for strongly charge generating processes)
● Breakdown voltage ≤ 4 kV for explosion group III (gas and dust)
Suitability test of the paint system for hazardous areas
Proof is available for the electrostatic suitability with explosion-proof machines for the paint
systems ordered by default. Such evidence is not available for paint systems that are non-
standard or specifically requested by customers. Take into consideration that the provided
evidence is not valid for repaintings.
9.1.14 Maintaining terminal boxes
Requirement
The machine is de-energized.
Maintenance
9.1 Inspection and maintenance
SIMOTICS FD 1MH1
Operating Instructions 02/2019 143
Checking the terminal box
● Terminal boxes must be regularly checked for tightness, undamaged insulation, and tight
terminal connections.
● If dust or humidity have infiltrated the terminal box, this should be cleaned and dried
(particularly the insulators).
Check all the seals and sealing surfaces and address the cause of the leakiness.
● Check the insulators, connectors and cable connections in the terminal box.
● Replace any damaged components.
WARNING
Short-circuit hazard
Short-circuits can occur as a result of damaged components. This can result in death,
serious injury or material damage.
Replace damaged components.
9.2 Corrective Maintenance
Observe the following when carrying out any work on the machine:
● Comply with the general safety instructions
● Comply with the applicable national and sector-specific regulations.
● When using the machine within the European Union, comply with the specifications laid
down in EN 50110‑1 regarding safe operation of electrical equipment.
See also
Safety information (Page 15)
Risk of explosion as a result of inadmissible repair work
Repairs are only permissible within the scope of the work described in these operating
instructions. Otherwise an explosion can occur in an explosive atmosphere. This can result in
death, serious injury or material damage.
● For repairs to go beyond this scope, please contact the Service Center.
See also
Service and Support (Page 177)
Comply with the IEC / EN 60079‑17 standard during all service and maintenance work on the
machine.
If the motor has to be transported, please observe the information and instructions in the
"Transport" chapter.
Maintenance
9.2 Corrective Maintenance
SIMOTICS FD 1MH1
144 Operating Instructions 02/2019
9.2.1 Prepare servicing work
● The drawings and parts lists do not contain any detailed information about the type and
dimensions of fixing elements and components. For this reason, you should establish this
information when dismantling them and make a note of it for the purpose of reassembly.
● Document the type, dimensions and arrangement of the parts so that you will be able to
reassemble the machine to its original state.
● Use suitable tools to disassemble the machine.
● Take measures to prevent parts from dropping down before you dismantle them, e.g. by
replacing fastening elements with extra-long screws, threaded bolts or similar. This ensures
that the part is supported after it is pulled off.
● The centerings in the shaft extensions have reset threads. Use lifting gear which is suitable
for the rotor weight and direction of loading.
Danger when a rotor falls
Eyebolts in accordance with DIN 580 are unsuitable for suspending the rotor. The rotor can fall
off. This can result in death, serious injury or material damage.
● Use lifting gear which is suitable for the rotor weight and direction of loading.
Machine damage caused by improper repair work
Improper servicing work can damage the machine. This can cause damages and/or faults
which can result in eventual or immediate death, serious injury, or property damage.
● Properly assemble or disassemble the machine.
● Use only suitable tools and equipment.
● Immediately replace damaged components.
● If necessary, contact the Service Center (Page 177).
Danger as a result of rotor falling out
If the motor is in a vertical position, the rotor can fall out while work is being performed on the
locating bearing. This can result in death, serious injury or damage.
● Support or unload the rotor when carrying out work with the machine in a vertical position.
Maintenance
9.2 Corrective Maintenance
SIMOTICS FD 1MH1
Operating Instructions 02/2019 145
Explosion hazard due to improper maintenance of the anti-condensation heating
If the anti-condensation heating is not correctly repaired, e.g. if unauthorized or untested spare
parts are used, this can result in explosions during operation in a potentially explosive
atmosphere. This can result in death, serious injury or material damage.
● Only appropriately trained specialists in the service center (Page 177) are authorized to
repair anti-condensation heating systems. The anti-condensation heating must then be
subject to a routine test, which requires extensive specialist knowledge.
● Only use authorized and tested spare parts.
9.2.2 Screws with preCOTE coating
The motor can partly be fitted with screws with preCOTE coating. To ensure screw locking, use
new screws with preCOTE coating during assembly/repair. As an alternative, use normal
screws with a threadlocker such as Loctite.
9.2.3 Roller-contact bearings
9.2.3.1 Removing roller bearing
Preparation
● Remove any grease feeders, shock pulse measurement equipment and possibly mounted
instrumentation at the DE and NDE.
● Ensure that the DE shaft extension is freely accessible. Remove the coupling.
Note
For a schematic diagram of the respective component layout, see the chapter "Spare parts
(Page 155)".
Maintenance
9.2 Corrective Maintenance
SIMOTICS FD 1MH1
146 Operating Instructions 02/2019
Procedure
1. Remove the components of the bearing mounting.
– Dismount the outer bearing cover.
If present: Remove the V ring (Page 147).
Uninstall the labyrinth sealing ring (only for the option "Increased degree of protection")
(Page 148).
– Ensure that the inner bearing cover is no longer attached to the bearing housing or end
shield.
There may be springs in the inner bearing cover.
– Support the rotor for the uninstallation of bearing housing or end shield.
– If necessary, remove the bearing housing from the end shield.
– Remove the end shield. Dependent on shaft height, roller bearing type and design, it is
either a bearing head design or a bearing housing design.
– Remove the locking ring from the shaft or the set screw, depending on the version.
2. Pull off the roller bearing together with the grease slinger.
9.2.3.2 Remove V ring
Depending on the particular version, there is a V ring. The V ring must be replaced if unusual
amounts of grease escape the roller bearing or the V ring is visibly damaged.
Figure 9-1 Remove the V ring
1. Mark the components so that they can be correctly assembled.
2. Remove the V ring ① with the bearing cap – or by using a suitable tool from the shaft.
Removing the protective ring for IP56 degree of protection
The V ring for the outer bearing seal is fitted with a protective ring ② for degree of protection
IP56. The protective ring does not have to be removed for disassembling the bearing bush.
● Remove the protective ring together with the V ring and the outer bearing cover or end shield
from the shaft.
See also
Install the V ring (Page 149)
Maintenance
9.2 Corrective Maintenance
SIMOTICS FD 1MH1
Operating Instructions 02/2019 147
9.2.3.3 Removing the labyrinth sealing ring
Note
For the "Increased degree of protection" option, the machine is equipped with a labyrinth
sealing ring on the drive side and the non-drive side.
Before uninstalling the roller bearing, the labyrinth sealing ring must be removed.
The labyrinth sealing ring ③ is fixed with three grub screws that are separably secured with
adhesive such as Loctite 243.
Figure 9-2 Disassembling the labyrinth sealing ring (schematic diagram)
1. Mark the components of the bearing units so that they can be assembled correctly.
2. Remove the protective coating from the shaft in front of the Iabyrinth sealing ring.
3. Unscrew the three radially arranged set screws for fixing the ring axially.
4. Screw suitable bolts or screws into the radial threads for pulling off. Note the length of
engagement to avoid clamping to the shaft or damaging the thread.
5. Warm the labyrinth sealing ring as you pull it off.
See also
Installing the labyrinth sealing ring (Page 151)
Maintenance
9.2 Corrective Maintenance
SIMOTICS FD 1MH1
148 Operating Instructions 02/2019
9.2.3.4 Installing roller bearings
● Extreme caution and attention to cleanliness are vital to installation. Observe the correct
assembly sequence of the components.
● Attach all components with the specified tightening torques (Page 179).
Note
For further information about mounting the roller bearing, please refer to the catalog or the
information provided by the roller bearing manufacturer.
Procedure
1. Replace the damaged components.
2. Remove any dirt from the components. Remove any grease and the remains of sealant or
liquid threadlocker.
3. Prepare the bearing seats:
– Lightly oil the inner ring seat.
– Grease the outer ring seat with a solid lubricant such as Altemp Q NB 50.
– Press the inner bearing cover onto the shaft.
4. Warm up the roller bearing.
5. Push the inner ring of the warmed up roller bearing onto the shaft. Avoid any blows that
might damage the bearing.
6. Make sure that the roller bearing is resting against the shaft shoulder or the second bearing.
7. Fill the bearing to the top with the specified lubricating grease as stamped on the lubricant
plate.
8. Warm up the grease slinger and push it onto the shaft.
9. Depending on the particular version, fix the bearing with a locking ring or shaft nut.
10.Support the rotor when installing the bearing housing or bearing end shield.
11.Use a suitable sealant when assembling.
12.Assemble the bearing shield or bearing housing together with the bearing shield.
13.Install the outer bearing cover if one is being used.
14.Install the sealing elements:
If present: V ring (Page 149)
Labyrinth sealing ring (special design) (Page 151)
9.2.3.5 Install the V ring
Requirement
The roller bearing is already fitted.
Maintenance
9.2 Corrective Maintenance
SIMOTICS FD 1MH1
Operating Instructions 02/2019 149
Install the V ring
1. Grease the axial sealing surface. The shaft seating remains ungreased.
①V ring
②Mounting aid washer
③Protective ring
Figure 9-3 Install the V ring
2. Push the V ring ① onto the shaft using an assembly disk ②.
The V ring is in the correct axial position when the face surface is flush with the outer edge
of the V ring.
Install the protective ring for IP56 degree of protection
For degree of protection IP56, the V ring for the outer bearing seal is fitted with a sheet steel
protective ring ③ in the bearing cover.
1. Push the protective ring onto the shaft.
2. Verify that the ring is sufficiently pretensioned. Replace the protective ring, if necessary.
3. Position the protective ring so that one of the longitudinal grooves meets the corresponding
water separation groove at the bottom in the bearing cover flange or end shield.
9.2.3.6 Installing the V ring ("Increased degree of protection" option)
The grease chamber of the labyrinth sealing ring together with the V ring ensures compliance
with degree of protection IP65.
Maintenance
9.2 Corrective Maintenance
SIMOTICS FD 1MH1
150 Operating Instructions 02/2019
When installing the V ring, proceed in the same way as when installing the labyrinth ring.
1. Grease the axial sealing surface. The shaft seating remains ungreased.
2. Push the V ring ② onto the shaft.
The correct axial position of the V ring for the design with grease chamber has been reached
if the V ring sits approx. 0.2 mm behind the edge of the shaft heel. This position is the result
of installing the labyrinth sealing ring.
①Felt ring ③Labyrinth sealing ring
②V ring ④Grease chamber
Figure 9-4 Roller-contact bearing with grease chamber (schematic diagram)
See also
Install the V ring (Page 149)
9.2.3.7 Installing the labyrinth sealing ring
The labyrinth sealing ring is the last component to be fitted when fitting the roller-contact
bearing. It ensures degree of protection IP65 and prevents the penetration of dirt and foreign
bodies into the roller-contact bearing.
1. Apply a soluble adhesive to the three set screws such as Loctite 243) and screw them
partially into the labyrinth sealing ring.
2. Apply an corrosion protection paint to the shaft in the area of the labyrinth sealing ring.
Maintenance
9.2 Corrective Maintenance
SIMOTICS FD 1MH1
Operating Instructions 02/2019 151
3. Warm up the labyrinth sealing ring. Push the labyrinth sealing ring to approx. 3 mm before
the bearing cover before the paint or adhesive cures on the set screws.
3mm
Figure 9-5 Position the set screws for the labyrinth sealing ring on the outer bearing cover
4. Locate the labyrinth sealing ring in position by screwing the set screws in. Check that the tips
of the set screws engage with the keyway with a short axial movement.
The correct axial position is obtained when the locating setscrews screwed into the keyway
engage.
9.2.4 Seal the motor
Extreme caution and attention to cleanliness are vital to installation.
● Clean all bare joints between parts such as housings, bearing shields and bearing bushes
etc., and remove old sealant material.
● Smear bare joints between parts with non-hardening, permanently flexible sealant, such as
"Hylomar M". Follow the manufacturer's application and safety instructions when doing this.
● Check all sealing elements, such as those on the terminal boxes, for elasticity, aging or
damage, and renew them if they are no longer effective.
Replacing seals
1. Replace the seals if necessary with original parts or with tested sealing elements.
2. Completely bond the seals to the motor and the air intake housing. It is impermissible to
have gaps and holes where seals make contact.
3. Surfaces whose mating faces are sealed using liquid sealant can be resealed by applying
the original liquid sealant (Hylomar M).
4. Surfaces whose mating faces are sealed using sealings that adhere to one side only can be
resealed with the original sealing using the original adhesives (Loctite).
Maintenance
9.2 Corrective Maintenance
SIMOTICS FD 1MH1
152 Operating Instructions 02/2019
Attaching the cover
If you are installing covers that are sealed with liquid gasket, proceed as follows to maintain the
IP degree of protection of the machine before closing it again:
1. Use only approved liquid sealants.
2. Clean the sealing surfaces according to the technical data sheet of the liquid sealant. The
sealing surfaces must be clean and dry before reassembly.
3. Apply the liquid gasket as a continuous bead with a diameter of approx. 3 mm.
4. Assemble the components after the solvent has had a chance to vaporize, while still
assembling within the specified assembly time.
5. Retighten the fixing screws of the cover after the liquid sealant has set.
If you have any questions, contact the Service Center.
See also
Service and Support (Page 177)
Maintenance
9.2 Corrective Maintenance
SIMOTICS FD 1MH1
Operating Instructions 02/2019 153
Maintenance
9.2 Corrective Maintenance
SIMOTICS FD 1MH1
154 Operating Instructions 02/2019
Spare parts 10
10.1 Ordering data
When ordering spare parts, in addition to the precise designation of the spare part, specify the
motor type and the serial number of the motor. Ensure that the spare part designation matches
the designation in the spare part lists and add the associated part number.
Example
● Bearing shield, drive end (Part 5.00)
● Machine type 1MH1
● Serial number D21234567010001
The machine type and the serial number are indicated on the rating plate and in the technical
data, and are also embossed on the drive end of the shaft.
Note
The graphical representations in this chapter show schematic diagrams of the basic versions.
They are used for spare parts definitions. The supplied version may differ in details from these
representations.
Data matrix code
A data matrix code is provided on the machine. You can retrieve the following information from
the data matrix code:
● Machine type
● Serial number
● Using the Data Matrix code and the "Siemens Industry Online Support" App, you can access
product information such as the operating instructions and certificates of your machine.
See also
Service and Support (Page 177)
Quality documents (Page 181)
SIMOTICS FD 1MH1
Operating Instructions 02/2019 155
WARNING
Explosion hazard due to unsuitable spare parts
If you use parts other than the original spare parts, the type of protection can no longer be
guaranteed. This can result in an explosion during operation in a potentially explosive
atmosphere. This can result in death, serious injury, or material damage.
● Use only original spare parts for explosion-proof machines, including components, such as
seals, terminals, cables, and cable entries. If you have any questions, please contact
the service center (Page 177).
● Commercially available equivalent standard parts such as screws and bolts may be used.
10.2 Ordering spare parts via the Internet
You can use "Spares on Web" to determine the order numbers for motor
spare parts quickly and easily.
Spares on Web (https://www.sow.siemens.com/).
See also
Guide for Spares on Web (http://support.automation.siemens.com/WW/news/en/25248626)
Rolling bearings
When ordering rolling bearings, in addition to the bearing identification code, the
supplementary specifying code is also necessary for the bearing version. Both of these codes
are stamped on the lubricant plate and specified in the motor documentation, or can also be
taken from the installed bearings.
Always replace the rolling bearings with the identical bearings.
If insulated rolling bearings are fitted, use insulated rolling bearings of the same type as spare
parts. This will prevent any bearing damage being caused by bearing currents.
Spare parts
10.2 Ordering spare parts via the Internet
SIMOTICS FD 1MH1
156 Operating Instructions 02/2019
10.3 Anti-condensation heating
WARNING
Explosion hazard due to improper maintenance
If repairs to the anti-condensation heating are not carried out correctly, e.g. if unauthorized or
untested spare parts are used, this can result in explosions during operation in a potentially
explosive gaseous atmosphere. This can result in death, serious injury, or material damage.
● Repairing and mounting the anti-condensation heating and the subsequent routine testing
must always be undertaken by experts from the service center (Page 177), because this
work requires extensive specialist knowledge.
● Only authorized and tested spare parts may be used.
Spare parts
10.3 Anti-condensation heating
SIMOTICS FD 1MH1
Operating Instructions 02/2019 157
10.4 Housing, stators and rotors

Figure 10-1 Housing, stators and rotors
Table 10-1 Spare parts for housing, stators and rotors
Part Description
5.41 Gill plate and cover for air discharge opening
5.49 Enclosure cover
8.00 Rotor, complete
8.20 Stator core with winding
10.00 Stator frame
10.50 Lifting lugs
20.00 Terminal box without cable entry
See also
Terminal box 1XB1621 (Page 162)
Terminal box 1XB1631 (Page 164)
Terminal box 1XB7730 (Page 165)
Terminal box 1XB7731 (Page 166)
Spare parts
10.4 Housing, stators and rotors
SIMOTICS FD 1MH1
158 Operating Instructions 02/2019
Terminal box 1XB7740 (Page 167)
Terminal box 1XB7750 (Page 168)
Spare parts
10.4 Housing, stators and rotors
SIMOTICS FD 1MH1
Operating Instructions 02/2019 159
10.5 Roller bearing cartridge at the drive and non-drive end

Figure 10-2 Bearing cartridge at the drive end and non-drive end
Table 10-2 Spare parts for the bearing cartridge at the drive end and non-drive end
Part Description Part Description
3.20 Outer bearing cover 4.20 Outer bearing cover
3.35 Grease slinger 4.35 Grease slinger
3.60 Inner bearing cover 4.60 Inner bearing cover
5.00 End shield 6.00 End shield
Bearing kit at the drive end and non-drive end consists of the following components
Deep-groove ball bearing (locating bearing) Deep-groove ball bearings
Shaft sealing ring, labyrinth ring (optional) Shaft sealing ring
Locking ring, guard ring Locking ring
Spare parts
10.5 Roller bearing cartridge at the drive and non-drive end
SIMOTICS FD 1MH1
160 Operating Instructions 02/2019
10.6 Roller bearing cartridge at the drive and non-drive end
The following description applies to the standard version for IM B3. The bearing type used is
stamped on the lubricant plate. Different bearings can be used for different types of
construction.
As of shaft height 400, fast running motors have bearing cartridges with a reduced diameter in
the bearing housing design.

Figure 10-3 Bearing cartridge at the drive end and non-drive end
Table 10-3 Spare parts for the bearing cartridge at the drive end and non-drive end
Part Description Part Description
3.20 Outer bearing cover 4.20 Outer bearing cover
3.35 Grease slinger 4.35 Grease slinger
3.60 Inner bearing cover 4.60 Inner bearing cover
5.00 End shield 6.00 End shield
Bearing kit at the drive end and non-drive end consists of the following components
Deep-groove ball bearing (locating bearing) Deep-groove ball bearings
Shaft sealing ring, labyrinth ring (optional) Shaft sealing ring
Locking ring, guard ring Locking ring
Spare parts
10.6 Roller bearing cartridge at the drive and non-drive end
SIMOTICS FD 1MH1
Operating Instructions 02/2019 161
10.7 Terminal box 1XB1621

Figure 10-4 Terminal box 1XB1621 with standard cable entry

Figure 10-5 Two-part cable entry
Table 10-4 Terminal box 1XB1621 spare parts
Part Description Part Description
20.00 Terminal box without cable entry comprising the following components:
20.20 Terminal box housing 21.41 Terminal supports
20.27 Mounting rail 21.61 Terminal strip for auxiliary circuit
20.28 Seal 22.01 Saddle terminal, complete
Spare parts
10.7 Terminal box 1XB1621
SIMOTICS FD 1MH1
162 Operating Instructions 02/2019
Part Description Part Description
20.30 Cover 22.43 Terminal link, stepped with two holes
20.38 Seal 22.70 Fixing lug for PE conductor
21.11 Connecting plate with internal cable
Table 10-5 Additional spare parts
Part Description Part Description
20.60 Cable gland 20.66 Strain relief - lower part
20.61 Cable gland - upper part 20.68 Seal
20.62 Cable gland - lower part 20.70 Sealing insert for cable entry
20.65 Strain relief - upper part
Spare parts
10.7 Terminal box 1XB1621
SIMOTICS FD 1MH1
Operating Instructions 02/2019 163
10.8 Terminal box 1XB1631


Figure 10-6 Terminal box 1XB1631
Part Description Part Description
20.00 Complete terminal box with undrilled cable entry
plate1
22.01 Saddle terminal, complete
20.51 Cable entry plate with seal, undrilled 22.41 Terminal link, straight with 2 holes
21.41 Terminal bushings 22.43 Terminal link, stepped with 2 holes
1You can only order the terminal box as part.
;;
Table 10-6 Additional spare parts for terminal box 1XB1631 with split cable entry
Part Description Part Description
20.61 Cable gland - upper part 20.66 Strain relief - lower part
20.62 Cable gland - lower part 20.70 Sealing insert for cable entry
20.65 Strain relief - upper part
Spare parts
10.8 Terminal box 1XB1631
SIMOTICS FD 1MH1
164 Operating Instructions 02/2019
10.9 Terminal box 1XB7730

Figure 10-7 Main terminal box 1XB7730
Table 10-7 Main terminal box 1XB7730 spare parts
Part Description Part Description
20.00 Terminal box without cable entry comprising the following components
20.20 Terminal box housing 21.61 Terminal strip for auxiliary circuit
20.28 Seal 21.74 Anti-rotation cartridge
20.30 Cover 22.01 Saddle terminal, complete
20.38 Seal 22.39 Neutral point connection
21.11 Connecting plate with internal cable 22.70 Fixing lug for PE conductor
21.41 Terminal bushings
Table 10-8 Additional spare parts
Part Description Part Description
20.51 Entry plate with seal
Spare parts
10.9 Terminal box 1XB7730
SIMOTICS FD 1MH1
Operating Instructions 02/2019 165
10.10 Terminal box 1XB7731

Figure 10-8 Main terminal box 1XB7731
Table 10-9 Main terminal box 1XB7731 spare parts
Part Description Part Description
20.00 Terminal box without cable entry comprising the following components
20.20 Terminal box housing 21.61 Terminal strip for auxiliary circuit
20.28 Seal 21.74 Anti-rotation cartridge
20.30 Cover 22.01 Saddle terminal, complete
20.38 Seal 22.39 Neutral point connection
21.11 Connecting plate with internal cable 22.41 Terminal link, straight with two holes
21.41 Terminal bushings 22.70 Fixing lug for PE conductor
Table 10-10 Additional spare parts
Part Description Part Description
20.51 Entry plate with seal
Spare parts
10.10 Terminal box 1XB7731
SIMOTICS FD 1MH1
166 Operating Instructions 02/2019
10.11 Terminal box 1XB7740

Figure 10-9 Main terminal box 1XB7740
Table 10-11 Main terminal box 1XB7740 spare parts
Part Description Part Description
20.00 Terminal box without cable entry comprising the following components
20.20 Terminal box housing 21.61 Terminal strip for auxiliary circuit
20.28 Seal 21.74 Anti-rotation cartridge
20.30 Cover 22.01 Saddle terminal, complete
20.38 Seal 22.30 Connecting bar for the power circuit
21.11 Connecting plate with internal cable 22.39 Neutral point connection
21.41 Terminal bushings 22.70 Fixing lug for PE conductor
Table 10-12 Additional spare parts
Part Description Part Description
20.51 Cable entry plate with seal
Spare parts
10.11 Terminal box 1XB7740
SIMOTICS FD 1MH1
Operating Instructions 02/2019 167
10.12 Terminal box 1XB7750

Figure 10-10 Terminal box 1XB7750 with standard cable entry
Table 10-13 Terminal box 1XB7750
Part Description Part Description
20.00 Complete terminal box with undrilled cable entry
plate1
22.30 Connecting bar for the power circuit
20.51 Cable entry plate with seal, undrilled 22.39 Neutral point connection
22.01 Saddle terminal, complete
1You can only order the terminal box as part.
Spare parts
10.12 Terminal box 1XB7750
SIMOTICS FD 1MH1
168 Operating Instructions 02/2019
10.13 Auxiliary terminal box 1XB9014
[0[$$$$
Figure 10-11 Auxiliary terminal box 1XB9014
The auxiliary terminal box can only be ordered as one complete part, single parts are not
available. In this case, please contact the Service Center (Page 177).
Spare parts
10.13 Auxiliary terminal box 1XB9014
SIMOTICS FD 1MH1
Operating Instructions 02/2019 169
10.14 Auxiliary terminal box 1XB9015
$$
$$
[0[
Figure 10-12 Auxiliary terminal box 1XB9015
The auxiliary terminal box can only be ordered as one complete part, single parts are not
available. In this case, please contact the Service Center (Page 177).
Spare parts
10.14 Auxiliary terminal box 1XB9015
SIMOTICS FD 1MH1
170 Operating Instructions 02/2019
10.15 1XB9016 auxiliary terminal box
$$$$[0[
Figure 10-13 1XB9016 auxiliary terminal box
The auxiliary terminal box can only be ordered as one complete part, single parts are not
available. In this case, please contact the Service Center (Page 177).
Spare parts
10.15 1XB9016 auxiliary terminal box
SIMOTICS FD 1MH1
Operating Instructions 02/2019 171
10.16 Auxiliary terminal box 1XB302.
0[0[[0[0$$$$
Figure 10-14 Auxiliary terminal box 1XB302.
The auxiliary terminal box can only be ordered as one complete part, single parts are not
available. In this case, please contact the Service Center (Page 177).
Spare parts
10.16 Auxiliary terminal box 1XB302.
SIMOTICS FD 1MH1
172 Operating Instructions 02/2019
Disposal 11
Protecting the environment and preserving its resources are corporate goals of the highest
priority for us. Our worldwide environmental management system to ISO 14001 ensures
compliance with legislation and sets high standards in this regard. Environmentally friendly
design, technical safety and health protection are always firm goals even at the product
development stage.
Recommendations for the environmentally friendly disposal of the machine and its components
are given in the following section. Be sure to comply with local disposal regulations.
Country-specific legislation
The machine uses materials that can be recovered or recycled. Correctly separating materials
helps to simply recycle important materials.
● When disposing of the machine or of waste that is created during the individual phases of
its life cycle, please observe the statutory requirements applicable in the country of use.
● Please contact your local authorities for more information about disposal.
11.1 RoHS - restricting the use of certain hazardous substances
In compliance with RoHS ("Restriction of certain Hazardous Substances" ) we replace
substances that are damaging to the environment by those that are not based on state-of-the-
art technology. In doing so, safety in operation and handling will take priority at all times.
11.2 Information according to Article 33 of the REACH regulation
This product contains one or several subproducts in which the following substance – belonging
to the "list of candidates" – exists in a concentration exceeding 0.1 percent by weight.
● CAS No. 7439-92-1, lead
Based on the currently available information, we assume that this substance does not
represent any risk when correctly used, including its disposal.
SIMOTICS FD 1MH1
Operating Instructions 02/2019 173
11.3 Preparing for disassembly
Disassembly of the machine must be carried out and/or supervised by qualified personnel with
appropriate expert knowledge.
1. Contact a certified waste disposal organization in your vicinity. Clarify what is expected in
terms of the quality of dismantling the machine and provision of the components.
2. Follow the five safety rules (Page 15).
3. Disconnect all electrical connections and remove all cables.
4. Remove all liquids such as oil and cooling liquids. Collect the liquids separately and dispose
of them in a professional manner.
5. Detach the machine fixings.
6. Transport the machine to a suitable location for disassembly.
11.4 Dismantling the machine
Dismantle the machine using the general procedures commonly used in mechanical
engineering.
WARNING
Machine parts can fall
The machine is made up of heavy parts. These parts are liable to fall during dismantling. This
can result in death, serious injury or material damage.
● Before you release any machine parts, secure them so that they cannot fall.
11.5 Disposal of components
Components
The machines consist mainly of steel and various proportions of copper and aluminum. Metals
are generally considered to be unlimitedly recyclable.
Sort the components for recycling according to whether they are:
● Iron and steel
● Aluminum
● Non-ferrous metal, e.g. windings
The winding insulation is incinerated during copper recycling.
● Insulating materials
● Cables and wires
● Electronic waste
Disposal
11.3 Preparing for disassembly
SIMOTICS FD 1MH1
174 Operating Instructions 02/2019
Process materials and chemicals
Sort the process materials and chemicals for recycling according to whether they are for
example:
● Oil
● Grease
● Cleaning substances and solvents
● Paint residues
● Anti-corrosion agent
● Coolant additives such as inhibitors, antifreeze or biocides
Dispose of the separated components according to local regulations or via a specialist disposal
company. The same applies for cloths and cleaning substances which have been used while
working on the machine.
Packaging material
● If necessary, contact a suitable specialist disposal company.
● Wooden packaging for sea transport consists of impregnated wood. Observe the local
regulations.
● The foil used for water-proof packaging is an aluminum composite foil. It can be recycled
thermally. Dirty foil must be disposed of via waste incineration.
Disposal
11.5 Disposal of components
SIMOTICS FD 1MH1
Operating Instructions 02/2019 175
Disposal
11.5 Disposal of components
SIMOTICS FD 1MH1
176 Operating Instructions 02/2019
Service and Support A
Technical questions or additional information
If you have any technical questions or require additional information, please
contact Technical Support (https://support.industry.siemens.com/cs/ww/en/
sc/4868).
Please have the following data ready:
● Type
● Serial number
You can find this data on the rating plate.
Contact person
If you wish to request on-site service or order spare parts, please contact
your local office. This office will contact the responsible service center on
your behalf. You can find your contact person in the relevant contact data‐
base:
www.siemens.com/yourcontact (www.siemens.com/yourcontact)
Siemens Support for on the move
With the "Siemens Industry Online Support" App, you can access more than
300,000 documents for Siemens Industry products – any time and any‐
where. The App supports you in the following areas:
● Resolving problems when executing a project
● Troubleshooting when faults develop
● Expanding a system or planning a new system
Further, you have access to the Technical Forum and other articles that our
experts have drawn-up:
● FAQs
● Application examples
● Manuals
● Certificates
● Product announcements and many more
The app is available for Apple iOS, Android and Windows Phone.
SIMOTICS FD 1MH1
Operating Instructions 02/2019 177
Service and Support
SIMOTICS FD 1MH1
178 Operating Instructions 02/2019
Technical data and drawings B
B.1 Tightening torques for screw and bolt connections
Bolt locking devices
● Refit nuts or bolts that are mounted together with locking, resilient, and/or force-distributing
elements with identical, fully-functional elements when re-assembling. Always renew keyed
elements.
● When screwing together threads secured with a liquid adhesive, use a suitable medium
such as Loctite 243.
● Always use suitable securing devices or removable adhesives (e.g., Loctite 243) when
installing fixing bolts with a clamping length of less than 25 mm. The clamping length is taken
as the distance between the head of the bolt and the point at which the bolt is screwed in.
Tightening torques
The bolted connections with metal contact surfaces, such as end shields, bearing cartridge
parts, terminal box parts bolted onto the stator frame, should be tightened to the following
torques, depending on the thread size:
Table B-1 Tightening torques for bolted connections with a tolerance of ±10%.
Case M4 M5 M6 M8 M10 M12 M16 M20 M24 M30 M36 M42 M48 M56
A1.2 2.5 4 8 13 20 40 52 80 150 - - - - Nm
B1.3 2.6 4.5 11 22 38 92 180 310 620 1080 1700 2600 4200 Nm
C3 5 8 20 40 70 170 340 600 1200 2000 3100 4700 7500 Nm
SIMOTICS FD 1MH1
Operating Instructions 02/2019 179
Applications
The above-mentioned tightening torques apply for the following applications:
● Case A
Applies to electrical connections in which the permissible torque is normally limited by the
bolt materials and/or the current carrying capacity of the insulators, with the exception of the
busbar connections in case B.
● Case B
Applies to bolts screwed into components made from materials with lower property class
(e. g. aluminum) and to bolts with property class 8.8 according to ISO 898-1.
● Case C
Applies to bolts with property class 8.8, A4-70 or A4-80 according to ISO 898-1, however
only to bolts screwed into components made from materials with higher property class, e.g.
cast iron, steel or cast steel.
Note
Non-standard tightening torques
Different tightening torques for electrical connections and bolted connections for parts with
flat seals or insulating parts are specified in the relevant sections and drawings.
See also
Securing the rotor (Page 47)
Technical data and drawings
B.1 Tightening torques for screw and bolt connections
SIMOTICS FD 1MH1
180 Operating Instructions 02/2019
Quality documents C
You can find the quality documents here:
https://support.industry.siemens.com/cs/ww/de/ps/13318/cert (https://
support.industry.siemens.com/cs/ww/en/ps/13318/cert)
SIMOTICS FD 1MH1
Operating Instructions 02/2019 181
Quality documents
SIMOTICS FD 1MH1
182 Operating Instructions 02/2019
Index
"
"Siemens Industry Online Support" App, 177
5
5 safety rules, 15
A
Aligning, 71, 74, 75
Accuracy, 75
Prerequisites, 64
Aluminum conductors, 98
Anti-condensation heating, 41, 112, 120, 123, 137,
146
Insulation resistance, 63
Repairs, 157
Anti-corrosion agent
Removing, 66
Anti-freeze, 39
Anti-freeze protection, 39, 123
Applications, 23
Assembly
Labyrinth sealing ring, 151
Outer bearing seal, 151
Roller bearings, 149
Sealing, 152
V ring, 149
Auxiliary terminal box
close, 103
Axial force, 75
Axial gap, 73
B
Bearing cover, 147
Bearing currents
Reduction, 55
Bearing insulation, 56, 106
Bearing seizure damage, 49
Bearing temperature
Monitoring, 109
Set values, 109
Biocides, 39
Bolt locking device, 179
Brought-out cables, 90
C
Cable entries, 95
certified, 94, 101
Cable entry and routing, 93
Cable entry plate, 94
Cable gland, 95
Cable lugs without side guard, 96
Center of gravity, 68
Centering flange, 74, 75
Certificates
EAC, 27
UL and cUL, 27
Checks to be carried out prior to commissioning, 105
Common-mode filters, 56
Condensate, 70
Connecting cables
Selection, 88, 101
Connecting the auxiliary circuit, 102
Converter, 28
Converter documentation, 56
Cooling capacity derating, 40
Cooling system
Faults, 130
Cooling water
connecting, 77
Cooling water ducts
Cleaning, 142
Cooling water intake temperature, 37
Cooling water quality, 38
Cooling water supply, 106
Correct usage, 26
Corrosion protection, 52, 53, 123, 151
Coupling, 57
Cross-section of grounding conductor, 89
Cross-section of the line conductor, 89
D
Damage during transport, 47
Damage during transportation, 46
Damping cores, 56
Data matrix code, 155
De-energizing
Anti-condensation heating, 112, 123
SIMOTICS FD 1MH1
Operating Instructions 02/2019 183
Degree of protection, 29
Derating, 71
Increased, 30
Delivery, 46
Derating, 40
Differential pressure, 34
Direction of rotation, 91
Disassembly
Disposal, 174
Machine, 145
Roller bearings, 147
Disposal
Chemicals, 175
Components, 174
Distance over surface, 97
Drive, 28
E
Electrical faults, 128
Electromagnetic fields, 21
Emergency off, 126
Emitted interference, 21
End shield, 147
Equipotential bonding, 35, 99
Equipotential bonding conductor, 55
ESD guidelines, 18
Explosion hazard, 23, 157
Bridging the insulated bearing, 120
Electrostatic discharge, 19
Spare parts, 156
F
Faults
Cooling system, 130
Electric, 128
Inspection, 127, 135
Mechanical, 128
Roller bearings, 131
Faults in operation, 120
Flammable substances, 17
Foundation surfaces, 64
Frequency fluctuation, 43
G
General inspection, 136
Geometry of the flange, 64
GOST standards, 24
Grease chamber, 150
Grease replacement intervals, 140
Grease tank, 142
Grounding conductor
Connecting, 89
Grounding system
Meshed, 56
H
Hazardous substances, 17
Hearing damage, 17, 42
Hot surfaces, 16
I
Ignition hazard, 18, 121
Increased degree of protection, 30
Induced eddy currents, 99
Inhibitors, 39
Initial lubrication, 138
Insert cable, 94
Inspection
Faults, 127, 135
Installation
Initial inspection, 136
Installing the protective ring, 150
Insulated bearings, 29, 56, 121
Insulated coupling, 57
Insulation resistance, 61, 107, 124, 135
Anti-condensation heating, 63
measure, 61
Interference immunity, 20
Interference voltages, 20
Interlocking circuit
Anti-condensation heating, 41
Intrinsically safe circuits, 102
L
Labyrinth ring, 148
Lifting, 68
Line operation, 28
Live parts, 16
Long-term storage, 51
Lubrication data, 140
Index
SIMOTICS FD 1MH1
184 Operating Instructions 02/2019
M
Machine
Aligning to the driven machine, 72
setting down, 69
Machine design
IEC, 23
Machine expansion, 73
Maintenance
Maintenance intervals, 133
Materials, 35
Metal shield, 90, 102
Metal-armored cables, 90, 102
Minimum air clearances, 100
More information, 177
Mounting the terminal box, 88
Mounting-foot hole dimensions, 64
N
Noise emissions, 17, 42
O
On-site service, 177
Operating mode, 33
Operation with converter
Explosion-protected machine, 53
Output element, 67
Overpressure, 34
Overspeed, 33
P
Paint system, 142
Paintwork damage, 142
Polarization index, 61, 63, 107, 124, 135
Positioning, 72
Precision alignment, 73
Preload
Rotor bracing, 48
Preparations for assembly, 60
Processes that generate high levels of electrostatic
charge, 19
Protective conductor, 57
Protective ring, 147
Q
Qualified personnel, 15
R
Radial force, 75
Rating plate, 26
REACH regulation, 173
Re-commissioning, 126
Regreasing, 122, 141
Regreasing interval, 142
Regreasing rolling bearings, 141
Regreasing system, 29
Commissioning, 109
Interlocking circuit, 41
Maintenance, 138
Removing the terminal box, 87
Repainting, 143
Repair
Initial inspection, 136
Residual risks, 33
Restriction of certain Hazardous Substances, 173
RF grounding point, 55
Risk of explosion, 51, 146
Cleaning with compressed air, 135
RoHS, 173
Roller bearings
Assembly, 149
faults, 131
Inspection, 137
Regreasing, 108
Roller-contact bearings, 29
Rolling bearings
Replacement, 156
Rotating parts, 16
Rotor, 28
Rotor shipping brace, 45, 47, 51, 65
Remove, 65
Rotor winding, 28
S
Safety instructions
Flammable substances, 17
Hazardous substances, 17
Hot surfaces, 16
Live parts, 16
Rotating parts, 16
Screws with preCOTE coating, 146
Index
SIMOTICS FD 1MH1
Operating Instructions 02/2019 185
Seal insert, 93
Sealing, 99
Sealing grease, 30
Sealing insert with break-off ring, 92
Sealing plugs
certified, 94, 101
Selecting rolling bearing grease, 139
Setting the motor parameters, 112
Shaft assembly, 44
Shipping, 47
Siemens Industry Online Support
App, 177
SIMOTICS Digital Data, 155
Spare parts, 156, 177
1XB9016 auxiliary terminal box, 171
Auxiliary terminal box 1XB302., 172
Auxiliary terminal box 1XB9014, 169
Auxiliary terminal box 1XB9015, 170
Bearing housing design, 161
Bearing shield cartridge, 160
enclosure, 158
Main terminal box 1XB7730, 165
Main terminal box 1XB7731, 166
Main terminal box 1XB7740, 167
Rotor, 158
Stator, 158
Terminal box 1XB1621, 162
Terminal box 1XB1631, 164
Spare parts ordering, 155
Spares on Web, 156
Speed, 42
Speed-torque characteristic, 43
Standard flange, 74, 75
Stator winding
Temperature monitoring, 102
Stoppages, 122, 123
Roller bearings, 124
Storage, 50
Storage location, 50
Strain relief, 93
Supplementary devices, 31
Support foot, 42
Switching on, 110, 122
System resonances, 43
T
Tandem operation, 57
Technical Support, 177
Temperature class, 41, 123
Temperature limits, 51
Temperature monitoring
Stator winding, 102
Terminal box, 30, 80, 90, 102
Closing, 100
Maintaining, 144
rotating, 84
Terminal box 1XB1631, 164
Terminal box 1XB7750, 168
Terminal designation, 88
Terminal diagram, 101
Test run, 110
Thermal motor protection, 41
Threadlocker, 146
Tightening torques, 79
Bolted connection, 179
Cable lug, 90
Ground terminals, 90
Torsional loadings, 44
Transporting, 68
Turning the machine on to its side, 65
Type of balancing, 66
Type of protection, 156
Type of protection Ex ec, 23
V
V ring, 147, 150
Vibration values, 43, 111
Voltage fluctuations, 43
Voltage via the converter, 107
W
Wall faces, 64
Wall mounting, 64
Water drip loop, 80
Winding temperature
Monitoring, 110
Set values, 110
Wire end ferrules, 96, 98
Index
SIMOTICS FD 1MH1
186 Operating Instructions 02/2019
Further Information
www.siemens.com/drives
Siemens AG
Process Industries and Drives
Postfach 48 48
90026 NÜRNBERG
GERMANY