KFD2-STC4-EX1.H - PEPPERL+FUCHS PA

Release date 2014-12-01 16:23 Date of issue 2015-02-16 231393_eng.xml

KFD2-STC4-Ex1.H

Refer to "General Notes Relating to Pepperl+Fuchs Product Information".

Pepperl+Fuchs Group USA: +1 330 486 0002 Singapore: +65 6779 9091Germany: +49 621 776 2222

www.pepperl-fuchs.com pa-info@us.pepperl-fuchs.com pa-info@de.pepperl-fuchs.com pa-info@sg.pepperl-fuchs.com

SMART Transmitter Power Supply

Zone 0, 1, 2

Div. 1, 2

KFD2-STC4-Ex1.H

250 Ω

HART

24 V DC

14+

15-

Power Rail

24 V DC

HART

Zone 2

Div. 2

Connection

Assembly

• 1-channel isolated barrier

• 24 V DC supply (Power Rail)

• Input 2-wire and 3-wire SMART transmitters and 2-wire

SMART current sources

• Output 0/4 mA ... 20 mA

• Terminals with test points

• High field voltage 17.6 V DC

• Up to SIL2 acc. to IEC 61508

Function

This isolated barrier is used for intrinsic safety applications.

The device supplies 2-wire and 3-wire SMART transmitters

with higher output voltage in a hazardous area, and can also

be used with 2-wire SMART current sources.

It transfers the analog input signal to the safe area as an

isolated current value.

Digital signals may be superimposed on the input signal in the

hazardous or safe area and are transferred bi-directionally.

If the HART communication resistance in the loop is too low,

the internal resistance of 250 Ω between terminals 8 and 9

can be used.

Test sockets for the connection of HART communicators are

integrated into the terminals of the device.

Application

The device supports the following SMART protocols:

•HART

•BRAIN

•Foxboro

Features

13 15

KFD2-STC4-Ex1.H

PWR

Front view

LED green:

Power supply

Removable terminals

green

Removable terminals

blue

Release date 2014-12-01 16:23 Date of issue 2015-02-16 231393_eng.xml

Technical data KFD2-STC4-Ex1.H

Refer to "General Notes Relating to Pepperl+Fuchs Product Information".

Pepperl+Fuchs Group USA: +1 330 486 0002 Singapore: +65 6779 9091Germany: +49 621 776 2222

www.pepperl-fuchs.com pa-info@us.pepperl-fuchs.com pa-info@de.pepperl-fuchs.com pa-info@sg.pepperl-fuchs.com

General specifications

Signal type Analog input

Supply

Connection Power Rail or terminals 14+, 15-

Rated voltage Un20 ... 35 V DC

Ripple within the supply tolerance

Power loss 1.5 W

Power consumption 1.9 W

Input

Connection terminals 1+, 2-, 3 or 5-, 6+

Input signal 0/4 ... 20 mA

Voltage drop ≤ 2.4 V at 20 mA (terminals 5, 6)

Input resistance ≤64 Ω terminals 2-, 3 ; ≤500 Ω terminals 1+, 3 (250 Ω load)

Available voltage ≥ 17.6 V at 20 mA terminals 1+, 3

Output

Connection terminals 7-, 8+, 9

Load 0 ... 800 Ω

Output signal 0/4 ... 20 mA (overload > 25 mA)

Ripple ≤ 50 µA rms

Transfer characteristics

Deviation at 20 °C (68 °F), 0/4 ... 20 mA

≤ 10 µA incl. calibration, linearity, hysteresis, loads and fluctuations of supply voltage

Influence of ambient temperature 0.25 µA/K

Frequency range field side into the control side: bandwidth with 0.5 Vpp signal 0 ... 7.5 kHz (-3 dB)

control side into the field side: bandwidth with 0.5 Vpp signal 0.3 ... 7.5 kHz (-3 dB)

Settling time 200 µs

Rise time/fall time 20 µs

Electrical isolation

Output/power supply functional insulation, rated insulation voltage 50 V AC

Directive conformity

Electromagnetic compatibility

Directive 2004/108/EC EN 61326-1:2006

Conformity

Electromagnetic compatibility NE 21:2011

Degree of protection IEC 60529:2001

Protection against electrical shock UL 61010-1:2012

Ambient conditions

Ambient temperature -20 ... 60 °C (-4 ... 140 °F)

Mechanical specifications

Degree of protection IP20

Mass approx. 200 g

Dimensions 20 x 124 x 115 mm (0.8 x 4.9 x 4.5 in) , housing type B2

Mounting on 35 mm DIN mounting rail acc. to EN 60715:2001

Data for application in connection

with Ex-areas

EC-Type Examination Certificate BAS 99 ATEX 7060 , for additional certificates see www.pepperl-fuchs.com

Group, category, type of protection ¬ II (1)G [Ex ia Ga] IIC , ¬ II (1)D [Ex ia Da] IIIC

Input [Ex ia Ga] IIC, [Ex ia Da] IIIC

Supply

Maximum safe voltage Um250 V (Attention! The rated voltage can be lower.)

Equipment terminals 1+, 3-

Voltage Uo 27.2 V

Current Io 93 mA

Power Po 632 mW

Permissible connection values [EEx ia]

Equipment terminals 2-, 3

Voltage Ui 30 V

Current Ii 117 mA

Voltage Uo 3.5 V

Current Io 73 mA

Power Po 64 mW

Permissible connection values [EEx ia]

Equipment terminals 1+, 2 / 3-

Voltage Uo 27.2 V

Current Io 117 mA

Release date 2014-12-01 16:23 Date of issue 2015-02-16 231393_eng.xml

Technical data KFD2-STC4-Ex1.H

Refer to "General Notes Relating to Pepperl+Fuchs Product Information".

Pepperl+Fuchs Group USA: +1 330 486 0002 Singapore: +65 6779 9091Germany: +49 621 776 2222

www.pepperl-fuchs.com pa-info@us.pepperl-fuchs.com pa-info@de.pepperl-fuchs.com pa-info@sg.pepperl-fuchs.com

Power Po 639 mW

Permissible connection values [EEx ia]

Equipment terminals 5-, 6+

Voltage Ui 30 V

Current Ii 117 mA

Voltage Uo 8.7 V

Current Io 0 mA

Output

Maximum safe voltage Um250 V (Attention! The rated voltage can be lower.)

EC-Type Examination Certificate DMT 01 ATEX E 133

Group, category, type of protection ¬ I (M1) [Ex ia] I

Statement of conformity TÜV 99 ATEX 1499 X , observe statement of conformity

Group, category, type of protection,

temperature class

¬ II 3G Ex nA II T4 [device in zone 2]

Electrical isolation

Input/Output safe electrical isolation acc. to IEC/EN 60079-11, voltage peak value 375 V

Input/power supply safe electrical isolation acc. to IEC/EN 60079-11, voltage peak value 375 V

Directive conformity

Directive 94/9/EC EN 60079-0:2012 , EN 60079-11:2012 , EN 60079-15:2010 , EN 50303:2000

International approvals

UL approval

Control drawing 116-0173 (cULus)

IECEx approval IECEx BAS 04.0016

Approved for [Ex ia Ga] IIC, [Ex ia Da] IIIC, [Ex ia Ma] I

General information

Supplementary information EC-Type Examination Certificate, Statement of Conformity, Declaration of Conformity, Attestation of

Conformity and instructions have to be observed where applicable. For information see www.pepperl-

fuchs.com.

Power feed module KFD2-EB2

The power feed module is used to supply the devices with 24 V DC via the Power Rail. The fuse-protected power feed module

can supply up to 150 individual devices depending on the power consumption of the devices. Collective error messages received

from the Power Rail activate a galvanically-isolated mechanical contact.

Power Rail UPR-03

The Power Rail UPR-03 is a complete unit consisting of the electrical insert and an aluminium profile rail 35 mm x 15 mm. To

make electrical contact, the devices are simply engaged.

Profile Rail K-DUCT with Power Rail

The profile rail K-DUCT is an aluminum profile rail with Power Rail insert and two integral cable ducts for system and field cables.

Due to this assembly no additional cable guides are necessary.

Power Rail and Profile Rail must not be fed via the device terminals of the individual devices!

Accessories