E2CCR8A - OMRON INDUSTRIAL AUTOMATION

Miniature Inductive Prox E2C-T

Proximity Sensor with Separate

Amplifier for Detecting All Metals

HIncorporates Easy-to-Use Teaching

Function for Simple Setup and

Accurate, Reliable Sensing

HThree teaching modes allow easy setup

and precise detection ability for all metal

targets

HSlim, 10-mm wide, amplifier unit allows

superior mounting flexibility

HCan be used with many existing sensor

heads in the E2C family

Orderin

Information

JSENSOR HEADS

Size Sensing distance

All temperature ranges 0°Cto40°C(32°F to 104°F)

Part number

2dia.

3.5 dia.

3.8 dia.

5.4 dia.

Un-shielded (See Note.)

Shielded

0.5 mm

0.8 mm

1mm

1.5 mm

0.7 mm

1.2 mm

1.5 mm

2mm

E2C-CR5B2

E2C-CR8A

E2C-CR8B

E2C-X1A

E2C-C1A

E2C-X1R5A

Type

Note: The E2C-CR5B2 with shielded construction cannot be embedded in metal.

JAMPLIFIER UNIT

Item Part number

Amplifier E2C-T11

Amplifier with built-in connection (for CompoBus/S) E2C-T16

Mounts to the Sensor Terminals easily for CompoBus/S use.

E2C-T11 E2C-T16

E2C-T E2C-T

ecifications

JE2C-T1jAMPLIFIER UNITS

Item Sensor head

E2C-CR5B2 E2C-CR8A

E2C-CR8B

E2C-X1A

E2C-C1A

E2C-X1R5A

Supply voltage 12 to 24 VDC ±10% (operation: 10 to 26.4 VDC), ripple (p-p): ±10% max.

Current consumption 50 mA max.

Sensing

distance

adjustment

(

Setting distance for teaching without

sensing target

(See Note 2.)

0.4 mm min. 0.72 mm min. 0.9 mm min. 1.35 mm min.

range (See

Note 1.) Setting distance for

teaching with and

without target

0°Cto40°C

(32°F to 104°F)

0.1to0.7mm 0.16 to 1.2 mm 0.2to1.5mm 0.3to2mm

object or

positioning

teaching

0°Cto55°C

(32°F to 131°F)

0.1to0.5mm 0.16 to 0.8 mm 0.2to1.0m 0.3to1.5mm

Temperature influence ±25% max. of

sensing distance at

23°Cinthe

temperature range

of 0°Cto 55°C

(32°F to 131°F)

±10% max. of sensing distance at 23°Cinthe

temperature range of 0°Cto55°C(32°F to 131°F)

Ambient temperature Operating 0°Cto55°C(32°F to 131°F)withnoicing

Ambient humidity Operating 35% to 95%

Differential travel 15% max. of

sensing distance

10% max. of sensing distance

Response time Refer to the response frequency of the Sensor Heads (next page).

Control output NPN open collector output of 100 mA max. at 26.4 V with a residual voltage of

1Vmax.

NO/NC selectable

Cable length compensation 3m 1, 2, or 3 m selectable

Indicators Operation indicator (orange) and stability indicator (green)

Voltage influence ±1% max. of sensing distance within a range of 90% to 110% of the rated

power supply voltage

Insulation resistance 50 MΩmin. at 500 VDC between current carrying parts and case

Dielectric strength 1,000 VAC (50/60 Hz) for 1 min between current carrying parts and case

Vibration resistance Destruction: 10 to 55 Hz, 1.5-mm double amplitude for 2 hours each in X, Y,

and Z directions

Enclosure rating IEC, IP50

Weight Approx. 70 g

Note: 1. Perform positioning teaching within the stable sensing distance, or reset failures may result when the E2C-T is in operation. If a

fine-difference teaching is performed with and without a target object, reset failures may result when the E2C-T is in operation --

even if teaching is successful.

2. The above distances for teaching without a target object were measured without surrounding metal or background.

3. E2C-T16 can only be used with CompoBus/S system.

E2C-T E2C-T

JE2C-jSENSOR HEADS

Item Sensor head

E2C-CR5B2 E2C-CR8A

E2C-CR8B

E2C-X1A

E2C-C1A

E2C-X1R5A

Target object Ferrous metal (Refer to Engineering Data for non-ferrous metal as target objects)

Standard target object Iron:5x5x1mm Iron:8x8x1mm

Stable sensing range (within whole

rated temperature range)

0to0.5mm

(0 to 0.02 in)

0to0.8mm

(0 to 0.03 in)

0to1mm

(0 to 0.04 in)

0to1.5mm

(0 to 0.06 in)

Stable sensing range at 0°Cto40°C0to0.7mm

(0 to 0.03 in)

0to1.2mm

(0 to 0.05 in)

0to1.5mm

(0 to 0.06 in)

0to2mm

(0 to 0.08 in)

Response frequency (See Note 1.) 1kHz 800 Hz

Ambient temperature Operating: -- 10°Cto

55°C(14°F to 131°F)

Operating: -- 25°Cto70°C(--13°F to 158°F)withnoicing

Ambient humidity Operating: 35% to 95%

Temperature influence ±25% max. of sensing

distance at 23°Cinthe

temperature range of

-- 1 0 °Cto55°C

(14°F to 131°F)

±15% max. of sensing distance at 23°C in the temperature range of

-- 2 5 °Cto70°C(--13°F to 158°F)

Vibration resistance Destruction: 10 to 55 Hz, 1.5-mm double amplitude for 2 hours each in X, Y, and Z directions

Shock resistance Destruction: 500 m/s2(approx. 50G) three times each in X, Y, Z directions

Enclosure rating IEC60529 IP64

JEM IP64 (drip-proof)

IEC, IP67 (JEM IP67g, waterproof and oil-proof)

Connection cable length

(See Note 2.)

3-m shielded cable 3-m coaxial cable (standard length)

Weight with 3-m cable Approx. 10 g Approx. 40 g Approx. 45 g Approx. 50 g

Material Case Stainless steel Brass

Sensing surface ABS resin

Cable Polyethylene

Note: 1. The response frequency was measured by using standard target objects under the condition that the space between each pair

of adjacent target objects is double the width of a single target object and the setting distance is half the maximum sensing

distance.

2. The characteristic impedance of the coaxial cable for high-frequency use is 50 Ω.

E2C-T E2C-T

eration

JCONNECTION

Proximity Sensor

Shielded wire

NPN open collector output

JOUTPUT CIRCUIT

12 to 24 VDC

Brown

Black

Blue

12 to 24 VDC

Blue

Black

Brown

39 V

100 mA max.

Load

Main

circuit

Control

output

JTIMING CHARTS

Sensing distance

Approx. 107 %

Sensing distance 100 %

Approx. 93 %

Time

Control output

Output indicator (orange) ON

OFF

STB (stability) indicator (green)

NO Setting

Control output

Output indicator (orange) ON

OFF

STB (stability) indicator (green)

NC Setting

E2C-T E2C-T

JINDICATORS

The OUT indicator indicates the status of the control output transistor. The indicator will be ON when the transistor has control output (i.e.,

NPN open collector output).

If the operation selector is set to NO, the indicator will be ON when the target object is in the sensing distance range. If the operation se-

lector is set to NC, the indicator will be ON when the target object is not in the sensing distance range.

The STB (stability) indicator indicates the excess gain of object detection or non-detection. The indicator will be ON when the target object

is within approximately 93% of the sensing distance or at approximately 107% of the sensing distance or beyond.

OUT indicator (orange)

Stable no-sensing area

Stable sensing area

Set to NC Set to NO

ON OFF

OFF

STB (stability)

indicator (green)

Approx. 107% of sensing distance

Sensing distance

Approx. 93% of sensing distance

Nomenclature

JSWITCHES AND FUNCTIONS

Operation Indicator

(Orange)

STB (Stability) Indicator (Green)

Also used for teaching monitor purposes.

Mode Selector

Operation Selector

Transistor output

(NPN open collector)

NC: Normally closed

NO: Normally open

Front side

Sensor Connection

Terminal (shielded ground)

Sensor Connection Terminal (conductor)

TEACH Button

Cable Length Selector

Cable Length Compensator

Set this switch according to the

cable length as shown in the table

below.

Cable (connector) side

Applicable

Sensor Head Setting Cable length

E2C-CR5B2

E2C-CR8A

E2C-CR8B

E2C-X1A

E2C-C1A

E2C-X1R5A

3m 3m

0to1m

1to2m

2to3m

RUN: RUN mode is set.

T: Teaching mode is set, The output

transistor is turned OFF.

E2C-T E2C-T

ineerin

Data

JOPERATING RANGE (TYPICAL)

E2C-CR8j

Sensing distance X (mm)

E2C-CR8jSensing Head

Y (mm)

Target object:

iron5x5x1mm

Sensing distance

(variable): 0.16 to

0.8 mm

E2C-CR5B2

2-dia. Sensing Head

Y (mm)

E2C-X1A/-C1A

Sensing distance X (mm)

Y (mm)

Target object:

iron:5x5x1mm

Sensing distance

(variable): 0.2 to

1mm

E2C-X1A Sensing Head

E2C-C1A Sensing Head

E2C-X1R5A

Sensing distance X (mm)

Y (mm)

Target object:

iron:8x8x1mm

Sensing distance

(variable): 0.3 to

1.5 mm

E2C-X1R5A

SensingHead

JSENSING DISTANCE VS. TARGET OBJECT SIZE AND MATERIAL (TYPICAL)

Side of target object ℓ(mm)

Sensing distance X (mm)

E2C-CR8j

Sensing distance X (mm)

Side of target object ℓ(mm)

Iron

E2C-CR5B2

E2C-T E2C-T

E2C-X1A/-C1A

Sensing distance X (mm)

E2C-X1R5A

Sensing distance X (mm)

Side of target object ℓ(mm) Side of target object ℓ(mm)

Iron

Stainless steel (SUS304)

Brass

Aluminum

Iron

Stainless steel (SUS304)

Brass

Aluminum

Dimensions

Unit: mm (inch)

JAMPLIFIER UNITS

E2C-T11

(0.39)

(0.16)

(0.08)

OUT indicator

STB indicator A (See Note.)

0.5

(0.02)

(0.28)

22.6

(0.89)

10.6

(0.42)

33.4

(1.31)

(0.24)

2.4

(0.09)

(2.76)

4.1

(0.16)

(0.94)

(0.63)

32.5

(1.28)

34.8

(1.37)

(0.16)

Vinyl-insulated round cable with 4 dia.,

three cores (0.12 dia. x 18)

Standard length: 2 m

Note: The mounting bracket can also be mounted to side A.

Mounting bracket (removable, provided

with the Proximity Sensor)

Two, 3.2-dia mounting holes

Mounting Holes

Tw o , M3

(0.63)

Two, mounting holes

33.4

(1.31) 16

(

0.63

)

3.4

(0.13)

4.4

(0.17)

21.6

(0.85)

(0.08)

E2C-T E2C-T

E2C-T16

(0.39) 4

(0.16)

(0.08)

0.5

(0.02)

22.6

(0.89) 2

(0.08)

32.5

(1.28)

(0.24)

(2.76)

(

0.94

)

21.8

(0.86)

5.5

(0.22)

36.7

(

1.44

)

OUT indicator STB indicator

(0.28)

JSENSOR HEADS

E2C-CR5B2

E2C-CR8A

E2C-CR8B

Note: 3.8-dia. coaxial cable is used for the E2C-CR8B.

2dia.

3.5 dia.

1.2-dia shielded cable

Standard length: 3 m

2.5-dia. coaxial cable

Standard length: 3 m

(0.59)

E2C-X1A

2.5-dia. coaxial cable

Standard length: 3 m

(0.59)

(0.71)

(0.31)

(0.16)

E2C-X1R5A

E2C-C1A

2.5-dia. coaxial cable

Standard length: 3 m

2.5-dia. coaxial cable

Standard length: 3 m

(0.51) 15

(0.59)

(0.71)

(0.16)

5.4

(0.21)

(0.12)

E2C-T E2C-T

Installation

JAUTOMATIC TEACHING

The E2C-T is used for object detection, level difference detection, and positioning, and the sensitivity of the E2C-T must be set according

to the application. The following description provides information on the automatic teaching of the E2C-T for sensitivity adjustment.

Teaching Proximity Sensor with Separate Amplifier

Teaching with no

sensing target

(Used for normal

object detection)

Set the mode

selector to T.

Without sensing target

Press the TEACH button once.

Set the mode

selector to RUN.

ON point

The ON point is automatically adjusted in the

vicinity of the maximum stable sensing range.

RUN

(See Note 5.)

TEACH

RUN

Teaching with

and without

sensing target

(See Note 3.)

(Used for level

difference detec-

tion and plate

overlapping

detection)

Positioning

teaching

(See Note 4.)

(Used for detec-

tion of objects

too close to the

Sensor with ON

point specified)

123

Set the mode

selector to T.

Press the TEACH button once.

With lower-side level detected With upper-side level detected

Press the TEACH button once. (2nd time)

Set the mode

selector to RUN.

The ON point is set in the

middle of the levels.

Be sure to take steps 1 and 2 in

numerical order.

Set the mode

selector to T.

Without target object

Press the TEACH button once.

With target object located in ON position

Press the TEACH button once. (2nd time)

With target object located in

the same position.

Set the mode

selector to RUN.

Press the TEACH button once. (3rd time)

The ON point is set to the teaching position.

Be sure to take steps 1 and 2 and 3

in numerical order.

ON point

RUN

(See Note 5.)

TEACH TEACH

RUN

(See Note 5.)

TEACH TEACH TEACH

RUN

ON point

ℓ

Note: 1. Refer to details in the Sensitivity Setting (Automatic Teaching) section of this data sheet.

2. Before use, be sure to perform the teaching of the E2C-T.

3. If a fine-difference teaching is performed, reset failures may result when the E2C-T is in operation even if the teaching is suc-

cessful. Make sure that the E2C-T resets smoothly after the teaching.

4. Be sure to perform positioning teaching within the stable sensing distance range, or reset failures may result -- even if teaching

is successful. Be sure to check that the E2C-T can be reset after teaching. Refer to Ratings for the stability sensing range.

5. No transistor output will be ON if the mode selector is set to T, and a wrong signal may be output. The utmost attention is re-

quired for positioning teaching.

E2C-T E2C-T

Sensitivity Setting (Automatic Teaching) in Detail

Type of teaching Procedure

Teaching without

a target object

1. Locate the Sensor Head in sensing distance range.

2. Set the mode selector to T.

3. Press the TEACH button once without a target object.

Wait for 1 s

Teaching is OK Orange teaching indicator is ON.

4. Set the mode selector to RUN to complete the teaching operation.

:Teaching is not OK Orange teaching indicator flashes.

Check the connection of the sensor cable and make sure that there is no target object. Then repeat

steps 3 and 4.

Teaching with and

without a target

object

1. Locate the Sensor Head in sensing distance range.

2. Set the mode selector to T.

3. Move the target object to the position where the output should turn OFF. Then press the TEACH button once.

(First time)

Wait for 1 s

Teaching is OK Orange teaching indicator is ON.

4. Move the target object to the position where the output should turn ON. Then press the TEACH button once.

(Second time)

Wait for 1 s

Teaching is OK Orange indicator is ON, then the green indicator is ON.

5. Set the mode selector to RUN to complete the teaching operation.

:Teaching is not OK Orange teaching indicator flashes.

Check the connection of the sensor cable and change the position of the target object and the set

distance. Then repeat steps 3 through 5.

Positioning

teaching

1. Locate the Sensor Head in sensing distance range.

2. Set the mode selector to T.

3. Press the TEACH button once without a target object. (First time)

Wait for 1 s

Teaching is OK Orange teaching indicator is ON.

4. Move the target object to the position where the output should turn ON. Then press the TEACH button once.

(Second time)

Wait for 1 s

Teaching is OK Orange indicator is ON, then the green indicator is ON.

5. Press the teaching button once without changing the position of the target object. (Third time)

Wait for 1 s

Teaching is OK Green indicator is ON, then both the orange and green

indicators are ON.

6. Set the mode selector to RUN to complete the teaching operation.

:Teaching is not OK Orange teaching indicator flashes.

Check the connection of the sensor cable and change the position of the target object and the set

distance. Then repeat steps 3 through 6.

Note: Be sure to perform the teaching of the E2C-T before use. Once the teaching of the E2C-T is performed, the teaching data set in

the E2C-T will be retained even after turning OFF the E2C-T.

E2C-T E2C-T

Precautions

JPOWER SUPPLY VOLTAGE

Do not impose voltage exceeding the rated voltage range or

100 VAC on the E2C-T, to avoid damaging the E2C-T.

Load

Brown

Sensor Black

Blue

JLOAD SHORT-CIRCUITING

Do not short-circuit the load, or the E2C-T may be damaged.

The load short-circuit protection function is triggered provided

that power within the rated voltage range is supplied to the

E2C-T without a mistake in polarity.

Load

Brown

Sensor

(Load short-circuiting)

Black

Blue

JMOUNTING

Do not tighten the nut of the E2C-jexcessively. Tighten the nut

with a toothed washer to the following torque.

Part number Torque

E2C-X1A 0.98 N Sm (10 kgf Scm)

E2C-X1R5A 2.0 N Sm (20 kgf Scm)

Note: The above applies to a nut used with a toothed washer.

JINCORRECT WIRING

To avoid damaging the E2C-T, observe the correct polarity when

connecting the power supply and the load to the E2C-T.

Sensor

Load

Sensor

Load

Brown

Black

Blue

Brown

Blue

Black

If a set screw is used for mounting a screwless, column model,

make sure that the tightening torque does not exceed 0.2 N Sm

(2 kgf Scm).

7to11.5mm Y92E-F3R5 Bracket

(3.5-dia. dedicated bracket

sold separately)

Y92E-F5R4 (5.4 dia.)

is sold separately.

M3 set screw end

Dimensions

Y92E-F3R5 Y92E-F5R4

3.3

(0.13)

0.4

(0.02)

4.2

(0.17)

5.3

(0.21)

0.4

(0.02)

5.6

(0.22)

3.2

(0.13)

(0.83)

4.2

(0.17)

(0.39)

(0.51)

(0.87)

3.2

(0.13)

(0.39)

4.2

(0.17)

(0.55)

E2C-T E2C-T

JPROCESSING THE SENSOR CABLE

ENDS

Because of the Amplifier Unit’s slim construction, the end of the

sensor cable connected to the E2C-jmust be processed as

shown in the following illustration.

SeeNote1.

SeeNote2.

4to5

7to8

14 max.

Sensor cable

(0.20)

2.5

Note: 1. Be sure to turn over the braided shield, so that none of

its thin wires are left.

2. Make sure that the insulation distance of at least

2.5 mm is maintained.

JINFLUENCE OF SURROUNDING METAL

If the Sensor is embedded, be sure to separate the Sensor from

surrounding metal objects, as shown in the following illustration.

ddia.

(mm)

Part number ℓd D m

E2C-CR5B2 2621.5

E2C-CR8j0(3.5) 02.4

E2C-X1A 0(5) 0 3

E2C-C1A 0(5.4) 0 3

E2C-X1R5A 0(8) 04.5

Note: Figures in parentheses indicate outer diameters of

shielded models.

Although the E2C-CR5B2 is a shielded model, this model

cannot be embedded in metal.

JMUTUAL INTERFERENCE

If more than one Sensor is located face-to-face or in parallel, be

sure to maintain enough space, (as provided in the following

diagram), between adjacent Sensors, to suppress mutual

interference.

The mutual interference of the Sensors can be prevented by

cable length selector settings. However, the result is a change in

the coil characteristics of the Sensors, and the specified ratings

may not be satisfied in all permissible temperature or sensing

distance ranges. Test the operation of the Sensors before using

them in an actual application.

Note: The cable length of E2C-CR5B2 cannot be adjusted, so

mutual interference cannot be manipulated for this sensor

using cable length selector settings.

(0.79)

(0.59)

Cat. No. CEDSAX4 11/01 Specifications subject to change without notice. Printed in U.S.A

OMRON ELECTRONICS LLC

One East Commerce Drive

Schaumburg, IL 60173

NOTE: DIMENSIONS SHOWN ARE IN MILLIMETERS. To convert millimeters to inches divide by 25.4.

1-800-55-OMRON

OMRON CANADA, INC.

885 Milner Avenue

Scarborough, Ontario M1B 5V8

416-286-6465

OMRON ON--LINE

Global -- http://www.omron.com

USA -- http://www.omron.com/oei

Canada -- http://www.omron.com/oci