E3S-AD31 - Omron - Product.Network

Built-in Amplifier Photoelectric Sensor (Medium Size)

E3S-A

Be sure to read Safety Precautions

on page 10.

Ordering Information

Built-in Amplifier Photoelectric Sensors

Sensing method Appearance Connection

method Sensing distance Functions Model

NPN output PNP output

Through-beam

Sensors

Pre-wired

--- E3S-AT11 E3S-AT31

E3S-AT21 E3S-AT41

Connector

(M12) --- E3S-AT16 E3S-AT36

Pre-wired

--- E3S-AT61 E3S-AT81

E3S-AT71 E3S-AT91

Connector

(M12) --- E3S-AT66 E3S-AT86

Retro-reflective

Sensors

Pre-wired

--- E3S-AR11 E3S-AR31

E3S-AR21 E3S-AR41

Connector

(M12) --- E3S-AR16 E3S-AR36

Pre-wired

--- E3S-AR61 E3S-AR81

E3S-AR71 E3S-AR91

Connector

(M12) --- E3S-AR66 E3S-AR86

Red light Infrared light

Horizontal

7 m

Timer

Self Diagnosis

Turbo

External

Diagnosis

Vertical Timer

Self Diagnosis

Turbo

External

Diagnosis

Horizontal

2 m

(100 mm)

Timer

Self Diagnosis

Turbo

External

Dia

nosis

Vertical Timer

Self Diagnosis

Turbo

External

Diagnosis

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E3S-A

*1. Values in brackets are the minimum required distance between the Sensor and Reflector.

*2. The following models are available with 200-mm sensing distances: E3S-AD14 and E3S-AD64.

Accessories (Order Separately)

Insert-type Long Slit

Mutual Interference Prevention Filters

Reflectors/Other Accessories

Note: When using any Reflector other than the provided one, use a sensing distance of approximately 0.7 times the typical value as a guide.

* Values in brackets are the minimum required distance between the Sensor and Reflector.

Diffuse-reflective

Sensors

Pre-wired

--- E3S-AD13 *2E3S-AD33

E3S-AD23 E3S-AD43

--- E3S-AD11 E3S-AD31

E3S-AD21 E3S-AD41

--- E3S-AD12 E3S-AD32

E3S-AD22 E3S-AD42

Connector

(M12) ---

E3S-AD18 E3S-AD38

E3S-AD16 E3S-AD36

E3S-AD17 E3S-AD37

Pre-wired

--- E3S-AD63 *2E3S-AD83

E3S-AD73 E3S-AD93

--- E3S-AD61 E3S-AD81

E3S-AD71 E3S-AD91

--- E3S-AD62 E3S-AD82

E3S-AD72 E3S-AD92

Connector

(M12) ---

E3S-AD68 E3S-AD88

E3S-AD66 E3S-AD86

E3S-AD67 E3S-AD87

Slit width Sensing distance Minimum sensing

object (typical) Model Quantity Remarks

0.5 mm × 11.1 mm 500 mm 0.2-mm dia.

E39-S46

1 of each for Emitter/

Receiver (4 Slits total) Slits can be used with the E3S-

AT@@ Through-beam

Sensor.➜Page 10

1 mm × 11.1 mm 1.1 m 0.4-mm dia.

2 mm × 13.6 mm 2.5 m 0.8-mm dia. 1 of each for Emitter/

Receiver (2 Slits total)

Sensing distance Model Quantity Remarks

2.4 m E39-E6 2 of each for Emitter/Receiver

(4 Filters total)

Can be used with the E3S-AT@@ Through-beam Sensor.

➜ Page 11

Name Sensing distance (typical) Model Quantity Remarks

Reflectors 2 m (100 mm) *

(rated value) E39-R1 1 Provided with E3S-AR@@ Retro-reflective Sensor.

Small Reflectors 1.3 m (100 mm) * E39-R3 1 ---

600 mm (70 mm) *E39-R4 1 ---

Tape Reflectors

450 mm (100 mm) *E39-RS1 1

Enables MSR function.700 mm (100 mm) *E39-RS2 1

900 mm (100 mm) * E39-RS3 1

Optical Axis

Confirmation Reflector --- E39-R5 1Used to check optical axis for the E3S-AT@@

Through-beam Sensor.

Sensing method Appearance Connection

method Sensing distance Functions Model

NPN output PNP output

Horizontal

100 mm (wide view) Timer Self Diagnosis

200 mm Timer

Self Diagnosis

Tu r b o

700 mm Timer

Self Diagnosis

Tu r b o

100 mm (wide view)

200 mm

700 mm

Vertical

100 mm (wide view) Timer Self Diagnosis

200 mm Timer

Self Diagnosis

Tu r b o

700 mm Timer Self Diagnosis

100 mm (wide view)

200 mm

700 mm

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E3S-A

Mounting Brackets/Other

Note: If a Through-beam Model is used, order two Mounting Brackets, one for the Emitter and one for the Receiver.

Sensors I/O Connectors

Appearance Model Quantity Remarks

E39-L69 1 Provided with E3S-A Horizontal Sensors.

E39-L70 1 Provided with E3S-A Vertical Sensors.

E39-L59 1Provided with E3S-A Vertical Pre-wired

Sensors.

E39-L81 1Provided with E3S-A Vertical Connector

Sensors.

E39-L97 1

Protective Cover for Horizontal Sensors

Note: When mounting Sensors with Connectors, the

Sensor I/O Connector will come into contact

with the Bracket. Mount the Sensor with care.

E39-L98 1

Protective Cover for Vertical Sensors

Note: When mounting Sensors with Connectors, the

Sensor I/O Connector will be longer. Mount the

Sensor with care.

E39-L60 1Close Mounting Plate:

Provided with E3S-A Connector Sensors.

Model Quantity Remarks

E39-G2 1 Provided with product.

Cable Appearance Cable type Model

Standard

2 m

3-wire

XS2F-D421-DC0-A

5 m XS2F-D421-GC0-A

2 m XS2F-D422-DC0-A

5 m XS2F-D422-GC0-A

Straight

L-shaped

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Ratings and Specifications

*1. Values in brackets are the minimum required distance between the Sensor and Reflector.

*2. National Electrical Manufacturers Association

Sensing method Through-beam

Sensors

Retro-reflective

Sensors

(with MSR function)

Diffuse-reflective Sensors

Item

Model

E3S-AT11, 16, 21, 31,

36, 41, 61, 66, 71, 81,

86, 91

E3S-AR11, 16, 21, 31,

36, 41, 61, 66, 71, 81,

86, 91

E3S-AD13, 18, 23, 33,

38, 43, 63, 68, 73, 83,

88, 93

E3S-AD11, 16, 21, 31,

36, 41, 61, 66, 71, 81,

86, 91

E3S-AD12, 17, 22, 32,

37, 42, 62, 67, 72, 82,

87, 92

Sensing distance 7 m 2 m (100 mm) *1

(When using E39-R1)

100 mm (wide view)

(white paper 100 ×

100 mm)

10 to 200 mm

(white paper 100 ×

100 mm)

700 mm

(white paper 200 ×

200 mm)

Standard sensing object Opaque:

10-mm dia. min.

Opaque:

75-mm dia. min. ---

Differential travel --- 20% max. of sensing

distance

10% max. of sensing

distance

20% max. of sensing

distance

Directional angle Both Emitter and

Receiver: 3° to 15°3 to 10°---

Light source (wavelength) Red LED (700 nm) Infrared LED (880 nm) Red LED (700 nm) Infrared LED (880 nm)

Power supply voltage 10 to 30 VDC, including ripple (p-p) 10%

Current consumption

Both Emitter and

Receiver: 20 mA max.

(plus approx. 15 mA with

turbo function)

30 mA max. (plus

approx. 15 mA with

turbo function)

35 mA max.

30 mA max. (plus

approx. 15 mA with

turbo function)

35 mA max.

Control output Load power supply voltage: 30 VDC max., Load current: 100 mA max. (residual voltage: 1 V max.)

Open-collector output (NPN or PNP depending on model), Light-ON/Dark-ON selectable

Self-diagnostic output (Only

on Sensors with self-diagnos-

tic outputs)

(Only Sensors with self-diagnostic function) Load power supply voltage: 30 VDC max.,

Load current: 50 mA max. (residual voltage: 1 V max.),

Open-collector output (NPN or PNP depending on model)

External

diagnostic

input

(Only on

Sensors with

external

diagnostic

outputs)

Input

voltage

NPN

with Emitter OFF: 0 V short-circuit or 1.5 V max.

(source current: 1 mA max.)

with Emitter ON: Open

(leakage current: 0.1 mA max.)

PNP

with Emitter OFF: +DC short-circuit or −1.5 VDC

max. (sink current: 3 mA max.)

with Emitter ON: Open

(leakage current: 0.1 mA max.)

---

Response

time 0.5 ms max.

Protection circuits

Power supply reverse

polarity protection,

Output short-circuit

protection

Power supply reverse polarity protection, Output short-circuit protection, Mutual interference prevention

Response time Operation or reset: 0.5 ms max.

Sensitivity adjustment Two-turn endless adjuster with an indicator

Timer function (Only on Sen-

sors with the timer function) 0 to 100 ms OFF-delay variable adjuster

Turbo function (Only on Sen-

sors with the turbo function) Yes (with turbo switch) ---

Ambient illumination (Receiv-

er side)

Incandescent lamp: 5,000 lx max.

Sunlight: 10,000 lx max.

Ambient temperature Operating: −25°C to 55°C (with no icing or condensation)

Storage: −40°C to 70°C (with no icing or condensation)

Ambient humidity Operating: 35% to 85% (with no condensation)

Storage: 35% to 95% (with no condensation)

Insulation resistance 20 MΩ min. 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

Shock resistance

(destruction) Destruction: 500m/s2, 3 times each in X, Y, and Z directions

Degree of protection IEC IP67; NEMA: 4X (indoors only) *2

Connection method Pre-wired (standard length: 2 m) or M12 connector

Weight (packed state)

Pre-wired cable:

Approx. 150 g

Connector: Approx. 70 g

Pre-wired cable:

Approx. 110 g

Connector: Approx. 60 g

Pre-wired cable: Approx. 90 g

Connector: Approx. 50 g

Material

Case PBT

Lens Denatured polyallylate

Mounting

Bracket Stainless steel (SUS304)

Accessories Mounting bracket (with screws), Sensitivity adjustment driver, Sensitivity adjusting knob, Instruction sheet, Close mounting plate

(only for Sensors with connectors), and Reflector (only for Retro-reflective Sensors)

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E3S-A

Engineering Data (Typical)

Parallel Sensing Range

Through-beam Sensors Through-beam Sensors Through-beam Sensors

E3S-AT@@ E3S-AT@@ + E39-S46

(Slit Sold Separately)

E3S-AT@@ + E39-E6

(Filter Sold Separately)

Parallel Sensing Range Sensing Range

Retro-reflective Sensors Diffuse-reflective Sensors

E3S-AR@@ + E39-R1 (with Reflector) E3S-AD@1/AD@2/AD@3/AD@6/AD@7/AD@8

Excess Gain vs. Set Distance

Through-beam Sensors Retro-reflective Sensors

E3S-AT@@ E3S-AR@@ + E39-R1 (with Reflector)

500

400

300

200

100

−100

−200

−300

−400

−500

2 4 6 8

Distance X (m)

Distance Y (mm)

200

100

−100

−200

1 2 3 4 5 6 7 8

Slit width: 1 mm

Slit width: 0.5 mm

Slit width: 2 mm

Distance X (m)

Distance Y (mm)

200

100

−100

−200

1 2 3 4 5 6

Distance X (m)

Distance Y (mm)

100

−20

−40

−60

−80

−100

0.5 1.0 1.5 2.0 2.5

E39-R1 Reflector

Distance X (m)

Distance Y (mm)

−10

−20

−30

−40

200

400 600 800

Sensing object: white paper

E3S-AD@1/@3/@6/@8: 100 × 100 mm

E3S-AD@2/@7: 200 × 200 mm

E3S-AD@1/@6

E3S-AD@3/@8

E3S-AD@2/@7

Distance X (m)

Distance Y (mm)

500

300

100

0 3 5 7 10

Oper-

ating

level

Distance (m)

Excess gain ratio (times)

100

0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2 2.2 2.4 2.6

E39-R1 Reflector

Oper-

ating

level

Distance (m)

Excess gain ratio (times)

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E3S-A

I/O Circuit Diagrams

NPN Output

Diffuse-reflective Sensor Diffuse-reflective Sensor Sensing Object Size vs. Sensing

Distance

E3S-AD@1/AD@2/AD@3/AD@6/AD@7/

AD@8 (Detection of White Paper)

E3S-AD@1/AD@2/AD@3/AD@6/AD@7/

AD@8 (Detection of Black Paper)

E3S-AD@1/AD@2/AD@3/AD@6/AD@7/

AD@8

Model Operation

mode Timing charts

Mode

selector

switch

Output circuit

E3S-AT11

E3S-AT16

E3S-AT61

E3S-AT66

E3S-AR11

E3S-AR16

E3S-AR61

E3S-AR66

E3S-AD11

E3S-AD16

E3S-AD61

E3S-AD66

E3S-AD12

E3S-AD17

E3S-AD62

E3S-AD67

E3S-AD13

E3S-AD18

E3S-AD63

E3S-AD68

Light-ON L Side

(LIGHT ON)

Through-beam Receivers, Retro-reflective Sensors, Diffuse-reflective

Sensors

Dark-ON D Side

(DARK ON)

Through-beam Emitters

500

300

100

0.50 0.2 0.4 0.6 0.8 1 1.2

E3S-AD@3/@8

E3S-AD@2/@7

E3S

-AD@1/@6

Oper-

ating

level

Distance (m)

Sensing object: White paper

E3S-AD@1/@3/@6/@8: 100 × 100 mm

E3S-AD@2/@7: 200 × 200 mm

Excess gain ratio (times)

100

0.5

0.3

0.1

0 200 400 600 800

E3S-AD@3/@8

E3S-AD@2/@7

E3S

-AD@1/@6

Oper-

ating

level

Distance (mm)

Sensing object: Black paper

E3S-AD@1/@3/@6/@8: 100 × 100 mm

E3S-AD@2/@7: 200 × 200 mm

Excess gain ratio (times)

1.2

0.8

0.6

0.4

0.2

Side of object (mm)

50 × 50 100 × 100 200 × 200 300 × 300

E3S-AD@1/@6

E3S-AD@3/@8

OFF

E3S-AD@2/@7

Sensing object: white paper

Distance (m)

Incident light

No incident light

OFF

Operate

Reset

Light indicator

(red)

(Between brown and black)

Output

transistor

Load

(e.g., relay)

Connector Pin Arrangement

Note: Pin 2 is not used.

Light

indi-

cator

Stability

indicator

Photo-

electric

Sensor

main

circuit

Load

Brown

Blue

Black

(Control

output)

(Relay)

100 mA max. 10 to

30 VDC

(red)

(green)

Incident light

No incident light

OFF

Operate

Reset

Light indicator

(red)

(Between brown and black)

Output

transistor

Load

(e.g., relay)

Connector Pin Arrangement

Note: Pins 2 and 4 are not used.

Power

indica-

tor Photo-

electric

Sensor

main

circuit

Brown

Blue

10 to

30 VDC

(red) 3

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E3S-A

Structure of Sensor I/O Connector

E3S-AT21

E3S-AT71

E3S-AD21

E3S-AD71

E3S-AD22

E3S-AD72

E3S-AD23

E3S-AD73

Light-ON L Side

(LIGHT ON)

Through-beam Receivers, Diffuse-reflective Sensors

Dark-ON D Side

(DARK ON)

--- ---

Through-beam Emitters

E3S-AR21

E3S-AR71

Light-ON L Side

(LIGHT ON)

Retro-reflective Sensors

Dark-ON D Side

(DARK ON)

Model Operation

mode Timing charts

Mode

selector

switch

Output circuit

T: OFF-delay timer (0 to 100 ms)

Incident light

No incident light

OFF

Operate

Reset

Light indicator

(red)

(Between brown and black)

Output

transistor

Load

(e.g., relay)

(Self-diagnostic

output)

Light

indica-

tor

Stability

indicator

(green)

Photo-

electric

Sensor

main

circuit

Load

(relay)

Brown

Blue

Black

(Control

output)

100 mA max.

10 to

30 VDC

(red)

Load

(relay)

Orange

50 mA max.

T: OFF-delay timer (0 to 100 ms)

Incident light

No incident light

OFF

Operate

Reset

Light indicator

(red)

(Between brown and black)

Output

transistor

Load

(e.g., relay)

External

diagnostic

input

Emitter LED

Indicator

(red)

OFF

(Between blue and pink)

0 V

(External

diagnostic input)

Power indicator

(red)

Photo-

electric

Sensor

main

circuit

Brown

Blue

10 to 30 VDC

Pink

T: OFF-delay timer (0 to 100 ms)

Incident light

No incident light

OFF

Operate

Reset

Light indicator

(red)

(Between brown and black)

Output

transistor

Load

(e.g., relay)

12 K

(External

diagnostic input)

(Self-diagnostic

output)

Light

indica-

tor

Stability

indicator

(green)

Photo-

electric

Sensor

main

circuit

Load

(relay)

Brown

Blue

Black

(Control

output)

100 mA max.

10 to

30 VDC

(red)

Load

(relay)

Orange

50 mA max.

Pink

T: OFF-delay timer (0 to 100 ms)

Incident light

No incident light

OFF

Operate

Reset

Light indicator

(red)

(Between brown and black)

Output

transistor

Load

(e.g., relay)

Terminal No.

XS2F-D421-DC0-A

Brown

Blue

Black

Note: Pin No. 2 is not used.

Classification Wire color Connection Pin No. Application

For DC

Brown 1 +V

--- 2 ---

Blue 3 0 V

Black 4 Output

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E3S-A

PNP Output

Model Operation

mode Timing charts

Mode

selector

switch

Output circuit

E3S-AT31

E3S-AT36

E3S-AT81

E3S-AT86

E3S-AR31

E3S-AR36

E3S-AR81

E3S-AR86

E3S-AD31

E3S-AD36

E3S-AD81

E3S-AD86

E3S-AD32

E3S-AD37

E3S-AD82

E3S-AD87

E3S-AD33

E3S-AD38

E3S-AD83

E3S-AD88

Light-ON L Side

(LIGHT ON)

Through-beam Receivers, Retro-reflective Sensors, Diffuse-reflective

Sensors

Dark-ON D Side

(DARK ON)

Through-beam Model Emitters

E3S-AT41

E3S-AT91

E3S-AD41

E3S-AD91

E3S-AD42

E3S-AD92

E3S-AD43

E3S-AD93

Light ON L Side

(LIGHT ON)

Through-beam Receivers, Diffuse-reflective Sensors

Dark ON D Side

(DARK ON)

--- ---

Through-beam Emitters

Incident light

No incident light

OFF

Operate

Reset

Light indicator

(red)

(Between blue and black)

Output

transistor

Load

(e.g., relay)

Connector Pin Arrangement

Note: Pin 2 is not used.

Light

indica-

tor

Stability

indicator

Photo-

electric

Sensor

main

circuit

Load

Brown

Blue

Black (Control output)

(Relay)

10 to

30 VDC

(red)

(green)

100 mA max.

Incident light

No incident light

OFF

Operate

Reset

Light indicator

(red)

(Between blue and black)

Output

transistor

Load

(e.g., relay)

Light

indica-

tor Photo-

electric

Sensor

main

circuit

Brown

Blue

10 to

30 VDC

(red)

Connector Pin Arrangement

Note: Pins 2 and 4 are not used.

T: OFF-delay timer (0 to 100 ms)

Incident light

No incident light

OFF

Operate

Reset

Light indicator

(red)

(Between blue and black)

Output

transistor

Load

(e.g., relay)

(Self-diagnostic

output)

Light

indica-

tor

Stability

indicator

(green)

Photo-

electric

Sensor

main

circuit

Load

(relay)

Brown

Blue

Black

(Control

output)

100 mA max.

10 to

30 VDC

(red)

Load

(relay)

Orange

50 mA max.

T: OFF-delay timer (0 to 100 ms)

Incident light

No incident light

OFF

Operate

Reset

Light indicator

(red)

(Between blue and black)

Output

transistor

Load

(e.g., relay)

External

diagnostic

input

Emitter LED

Indicator

(red)

OFF

(Between brown and pink)

0 V

(External

diagnostic input)

Power indicator

(red)

Photo-

electric

Sensor

main

circuit

Brown

Blue

10 to 30 VDC

Pink

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E3S-A

Structure of Sensor I/O Connector

Adjustment Methods

Sensitivity Adjustment for Diffuse-reflective Sensors Set to Light ON

Unlike conventional Photoelectric Sensors, the variation in the sensitivity of E3S-A Photoelectric Sensors is minimal. This means

the sensitivity can be adjusted on only a single Photoelectric Sensor, and then the adjusters on the other Photoelectric Sensors

can be set to the same scale position. There is no need to adjust the sensitivity of each Photoelectric Sensor individually.

E3S-AR41

E3S-AR91

Light-ON L Side

(LIGHT ON)

Retro-reflective Sensors

Dark-ON D Side

(DARK ON)

Item Sensing condition Sensitivity adjuster Indicators Procedure

1) Position A

Locate a sensing object at the sensing

distance, set the sensitivity adjuster to

the minimum scale position, and

gradually increase sensitivity by turning

the sensitivity adjuster clockwise until the

incident light indicator (red LED) is ON.

Position A is where the indicator has

turned ON.

2) Position B

Position B is when the sensing object is

removed and the sensitivity adjuster is

turned clockwise until the incident light

indicator (red LED) is ON. Position C is

where the adjuster is turned

counterclockwise (reducing the

sensitivity) from position B until the

incident light indicator (red LED) is OFF.

When there are no background objects,

the maximum sensitivity is position C.

3) Setting ---

Set the sensitivity adjuster to halfway

between (A) and (C) (at the optimum

sensitivity). Check that the stability

indicator (green LED) turns ON

according to whether the sensing object

is there or not. There is not sufficient

margin if it does not turn ON. If this is the

case, reconsider the detection method.

Model Operation

mode Timing charts

Mode

selector

switch

Output circuit

T: OFF-delay timer (0 to 100 ms)

Incident light

No incident light

OFF

Operate

Reset

Light indicator

(red)

(Between blue and black)

Output

transistor

Load

(e.g., relay)

4.4 K

(External

diagnostic input)

(Self-diagnostic

output)

Light

indica-

tor

Stability

indicator

(green)

Photo-

electric

Sensor

main

circuit

Load

(relay)

Brown

Blue

Black

(Control

output)

100 mA max.

10 to

30 VDC

(red)

Load

(relay)

Orange

50 mA

max.

Pink

T: OFF-delay timer (0 to 100 ms)

Incident light

No incident light

OFF

Operate

Reset

Light indicator

(red)

(Between brown and black)

Output

transistor

Load

(e.g., relay)

Terminal No.

XS2F-D421-DC0-A

Brown

Blue

Black

Note: Pin 2 is not used.

Classification Wire color Connection Pin No. Application

For DC

Brown 1 +V

--- 2 ---

Blue 3 0 V

Black 4 Output

Photoelectric

Sensor

Sensing object

Backg-

round

object

Min. Max.

(A)

Stability

indicator

(green)

Light

indicator

(red)

ON → OFF OFF → ON

Photoelectric

Sensor

Sensing object

Backg-

round

object

Min. Max.

(B)

(C)

ON → OFF ON → OFF

Stability

indicator

(green)

Light

indicator

(red)

Min. Max.

(C)

(A)

ON ON → OFF

Stability

indicator

(green)

Light

indicator

(red)

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E3S-A

Safety Precautions

This product is not designed or rated for

ensuring safety of persons.

Do not use it for such purposes.

Do not use the product in atmospheres or environments that

exceed product ratings.

Mounting

Position of Optical Axis of Through-beam Model

Unlike conventional through-beam sensors, the E3S-A

Through-beam Photoelectric Sensor incorporates 2 lenses.

The lens actually in use is the one marked with an arrow

indicating the position of the optical axis. When using a Slit,

attach it to the lens marked with the arrow.

Tightening the Connector

Manually tighten the connector until the threads have

completely disappeared. If tightening is insufficient, the

degree of protection may not be maintained, or the connector

may become loose when it is subjected to vibration. Using

pliers to tighten the connector may damage it.

Use the E39-L60 Close Mounting Plate (provided) if the

Sensor is mounted using mounting brackets or if it is mounted

directly. (Refer to Dimensions.)

Mounting Bracket (Provided)

The direction of the optical axis coincides with the machine

axis of the E3S-A when the mounting screw is inserted into

the lock hole of the Mounting Bracket. If the mounting surface

and the screw hole are correctly aligned toward the sensing

object (or toward the Retroreflector for a Through-beam

Sensor), the mechanical axis and optical axis will be aligned

when the screw is inserted into the hole. Incident light will be

detected, and time-consuming adjustment will not be

necessary. (If, however, the mounting surface is not flat,

adjustment of the optical axis may still be required.)

Adjust the position of the Sensor so that incident light points

at the center. Make sure that the incident light is at a fixed

position.

The maximum tightening torque of the screw is 0.53 N.m max.

● Adjustments

E39-S46 Through-beam Slits

(Accessory, order separately)

Use the rubber attachment with the metal cover if a slit width

of 2 mm is required. (A Slit is not required in this case.) Insert

the 0.5- or 1-mm Slit between the metal cover and rubber

attachment if a slit width of 0.5 or 1 mm is desired.

These Slits fit into the rubber attachment.

Apply the Slit to the lens of the Photoelectric Sensor marked

with an arrow indicating the position of the optical axis (apply

it to the bottom lens of Horizontal Sensors and the top lens of

Vertical Sensors).

WARNING

Precautions for Correct Use

Unused lens

Optical axis indicator arrow

Arrow indicating optical axis position

Lens actually in use (attach the Slit to this lens)

Position of Arrow Indicating Optical Axis

Model Position of lens in use

E3S-A

(Vertical Sensors) Top

E3S-A

(Horizontal

Sensors)

Bottom

Screw

Optical axis

Machine axis

Base of mounting

bracket

Bracket can move

in this direction

Optical axis lock hole (M3)

Arrow indicating

position of optical axis

2 mm

13.6 mm

11.1 mm

Metal cover

Slit (0.5 mm or 1 mm)

Rubber attachment

Indented portions

E3S-A

http://www.ia.omron.com/ 10

E3S-A

E39-E6 Polarized Mutual Interference Prevention Filters

for Through-beam Sensors

(Accessory, order separately)

•A set of 4 Filters are sold together for two Through-beam

Sensors (for 2 each for Emitters and Receivers). Order one

for every two sets of Photoelectric Sensors.

•For mounting, refer to the figure of the Through-beam Slits.

•The arrow printed on the cover indicates the direction of

polarization. By attaching the Filters opposite to each other

in polarization to the Emitters and the Receivers in rows,

mutual interference can be prevented (in any case, the

Filter attached to an Emitter and to the corresponding

Receiver must be the same in direction of polarization or the

Photoelectric Sensor will not function).

Operating Mode Selection

As shown in the following illustration, the E3S-A has an

operating mode selector on the panel where the Receiver

connector is located.

With this operating mode selector, the E3S-A is in either Dark-

ON or Light-ON mode.

and Switch

The Emitter of the Through-beam Sensor with the self-

diagnostic feature incorporates a turbo switch. When this

switch is ON, the intensity of the red LED light source can be

increased to make a brighter spot.

Function ( Switch)

The turbo function is effective with the turbo switch pressed,

and the function is reset automatically when released.

With the turbo function switched ON, the light spot is visible

even at a distance of 200 mm, making it easy to check the

sensing position and the angle of the optical axis.

Precautions

(1)Do not keep the turbo switch pressed for longer than 3

minutes. (It will not break even if it is pressed for an

extended period.)

(2)Pressing the switch may change the timer delay settings.

Set the timer after using the turbo function to check the

optical axis.

(3)To press the switch, use a force of 9.8 N max.

Using the E39-R5 Optical Axis Reflector for Through-

beam Sensors

(Accessory, order Separately)

Use this attachment when the set distance is long and

adjustment is mechanically difficult with a sensing object.

•Attach the Reflector to the Receiver.

•Look at the Reflector from right behind the Emitter. The

Reflector should be bright with red light when the optical

beam strikes the Reflector. If the Emitter has a turbo

function, the Reflector looks brighter with the function

switched ON.

•When the Reflector is removed, the light beam strikes the

Receiver.

Emitter

Receiver

Up to two units

can be attached.

Y = 0

Note: The arrows on the Filters can be attached in

either direction when two Sensors are

mounted next to each other. The Filter

attached to an Emitter and to the

corresponding Receiver must be the same

in direction of polarization or the Sensor will

not function.

Light ON

(ON when light is ON)

Operating mode switch (black)

Dark ON

(ON when light is OFF)

The default operating mode is shown in the

following table.

Sensing method Default switch

setting

Through-beam Sensors

Retro-reflective Sensors Dark-ON

Diffuse-reflective Sensors Light-ON

Timer Tu r b o

Tu r b o Tu r b o

Sensitivity adjuster

The OFF-delay timer adjuster is

used as a turbo switch (black).

The intensity of the

red spot will be

increased, making

visual confirmation

much easier.

PUSH

Eye

E3S-AT@@

Emitter

E3S-AT@@

Receiver

E39-R5

Optical Axis Confirmation Reflector

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E3S-A

Dimensions

E3S-A Built-in Amplifier Photoelectric Sensor

Through-beam Sensors (Horizontal)

Pre-wired Sensors

(Unit: mm)

Unless otherwise specified, the tolerance class IT16 is used for dimensions in this data sheet.

3.1

Stainless steel

(SUS304)

7.2

10.5

7.2

16.9

28.9

29.2

5.5

1.2

*The Mounting Bracket can be attached to side A.

Optical axis

Optical

axis

10.7

Two, M3 × 12 screws

With Mounting Bracket Attached

E3S-AT11/21/31/41 (Receiver)

Emitter: E3S-AT@@-L

Receiver: E3S-AT@@-D

*1. Not applicable to Sensors with timer adjusters (E3S-AT11 and E3S-AT31).

*2. The E3S-AT11 or E3S-AT31 has three conductors.

Lens (7 × 7) Optical axis

Two, M3 × 12 screws

1.3

10.5 20

12.9

75.5

(4)

8.8 dia.

12.4

Sensitivity adjuster (white)

Light indicator

(red)

Stability indicator (green)

Timer adjuster (black) *1

Operation mode

selector switch

Two, M3 holes

4-dia. vinyl-insulated

round cable with

4 conductors

(Conductor cross

section: 0.2 mm2,

Insulator diameter:

1.1 mm),

Standard length: 2 m *2

Mounting Holes

E3S-AT11/31 (Emitter)

29.2

5.5

1.2 10.7

3.1 7.2

10.5

7.2

16.9

28.9

Stainless steel

(SUS304)

*The Mounting Bracket can be attached to side A.

Optical axis

Optical

axis

Two, M3 × 12 screws

With Mounting Bracket Attached

3.1 7.2

10.5

7.2

16.9

28.9

Optical

axis

E3S-AT21/41(Emitter)

1.3

10.5 20

Power indicator (red)

17.8

(4)

12.4

12.9 12.5

(4)

8.8 dia.

10.5 20

12.4

Turbo switch

Lens (7 × 7) Optical axis

Two, M3 × 12 screws

Two, M3 holes

4-dia. vinyl-insulated

round cable with

2 conductors

(Conductor cross

section: 0.2 mm2,

Insulator diameter:

1.1 mm),

Standard length: 2 m

Power indicator (red)

4-dia. vinyl-insulated round

cable with 3 conductors

(Conductor cross section:

0.2 mm2,

Insulator diameter: 1.1 mm),

Standard length: 2 m

8.8 dia.

Mounting Holes

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E3S-A

Sensors with Standard Connectors

29.2

5.5

1.2 10.7

3.1 7.2

7.2

16.9

28.9

35.5

10.5 Stainless

steel

(SUS304)

*The Mounting Bracket can be attached to side A.

Optical axis

Optical

axis

Two, M3 × 12 screws

With Mounting Bracket Attached

-AT16

(

Receiver

)

1.3

10.5 20

12.9 7

(10)

12.4

Lens (7 × 7) Optical axis

Two, M3 × 12 screws

Sensitivity adjuster (white)

Light indicator

(red)

Stability indicator (green)

Operation mode

selector switch

Two, M3

M12 Connector

Mounting Holes

29.2

5.5

1.2 10.7

3.1 7.2

35.5

10.5 7.2

16.9

28.9

Stainless

steel

(SUS304)

*The Mounting Bracket can be attached to side A.

Optical axis

Optical

axis

Two, M3 × 12 screws

With Mounting Bracket Attached

E3S-AT16/36 (Emitter)

17.8

(10)

12.4

1.3

10.5 20

Two, M3 × 12 screws

Lens (7 × 7) Optical axis

Power indicator (red)

Two, M3

M12 Connector

Mounting Holes

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E3S-A

Through-beam Sensors (Vertical)

Pre-wired Sensors

3.1

47.2

5.5 5.4 7.2

16.9

28.9

8.3

10.5 20

29.2

1.2 10.7

Stainless

steel

(SUS304)

*The Mounting Bracket can be attached to side A.

Optical axis

Optical

axis

Two, M3 x 12 screws

With Mounting Bracket Attached

-AT61

(

Receiver

)

1.3

*1. The E3S-AT61 or E3S-AT81 has three conductors.

*2. Not applicable to timer adjuster models E3S-AT61 and E3S-AT81.

5.5

3.6

Timer adjuster

(black) *2

Sensitivity

adjuster (white)

13.5

(4)

10.5 20

12.4

Two, M3 × 12 screws

8.8 dia.

Operation mode

selector switch

Two, M3 holes

4-dia. vinyl-insulated

round cable with

4 conductors

(Conductor cross

section: 0.2 mm2,

Insulator diameter:

1.1 mm),

Standard length: 2 m

Lens (7 × 7) Optical axis

Light indicator (red)

Stability indicator

(green)

Mounting Holes

29.2

1.2 10.7

3.1

47.2

5.5 5.4 7.2

16.9

28.9

10.5 20

8.3

Stainless

steel

(SUS304)

*The Mounting Bracket can be attached to side A.

Optical axis

Optical

axis

Two, M3 × 12 screws

With Mounting Bracket Attached

-AT61

(

Emitter

)

E3S-AT71/91 (Emitter)

29.2

1.2 10.7

*The Mounting Bracket can be attached to side A.

Two, M3 × 12 screws

Two, M3 holes

4-dia. vinyl-insulated

round cable

with 2 conductors

(Conductor cross

section: 0.2 mm2,

Insulator diameter:

1.1 mm),

Standard length: 2 m *

Lens (7 × 7) Optical axis

Power indicator (red)

Mounting Holes

8.5

*The E3S-AT71 of E3S-AT91

has three conductors.

1.3

10.5 20

12.5

3.6 Turbo switch

13.5

(4)

8.8 dia.

12.4

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E3S-A

Connector Sensors

3.1

41.7

5.4

7.2

19.4

31.4

Use these

two holes

for

mounting.

29.2

1.2 10.7

10.5 20

8.3

Stainless steel

(SUS304)

*The Mounting Bracket can be attached to side A.

Optical axis

Optical

axis

Two, M3 × 12 screws

E39-L60 Close Mounting Plate (provided)

(Attach the mounting plate or the

plug cannot be connected.)

With Mounting Bracket Attached

-AT66

(

Receiver

)

M12

Connector

13.5

(10)

1.3

10.5 20

Operation

mode

selector

switch

3.6

Two, M3 holes

Two, M3 × 12 screws

Lens (7 × 7) Optical axis

LIght indicator (red)

Stability

indicator

(green)

Sensitivity

adjuster

(white)

Mounting Holes

29.2

1.2 10.7

10.5 20

3.1

41.7

5.4

7.2

19.4

31.4

8.3

Use these

two holes

for

mounting.

Stainless steel

(SUS304)

*The Mounting Bracket can be attached to side A.

Optical axis

Optical

axis

Two, M3 × 12 screws

E39-L60 Close Mounting Plate (provided)

(Attach the mounting plate or the

plug cannot be connected.)

With Mounting Bracket Attached

-AT66

(

Emitter

)

13.5

(10)

1.3

10.5 20

8.5

M12 Connector

Two, M3 × 12 screws

Two, M3 holes

Lens (7 × 7) Optical axis

Power indicator (red)

Mounting Holes

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E3S-A

Retro-reflective Sensors (Horizontal)

Pre-wired Sensors

Sensors with Connectors

929.2

1.2 10.7

3.1 7.2

10.5

7.2

16.9

28.9

Stainless

steel

(SUS304)

*The Mounting Bracket can be attached to side A.

Optical axis

Optical

axis

Two, M3 × 12 screws

With Mounting Bracket Attached

-AR11

42.3

15.2

2.3

75.5

(4) *2

12.4

11.5

Emitter

Receiver

8.8 dia.

1.3

12.8 20

*1. For E3S-AR21 and E3S-AR41 only.

*2. 9.7 mm for E3S-AR21 and E3S-AR41.

*3. The E3S-AR11 or E3S-AR31 has three conductors.

Lens (7 × 14)

Optical

axis

Two, M3 × 12 screws

Stability indicator (green)

Light indicator (red)

Operation mode

selector switch

Two, M3 holes

4-dia. vinyl-insulated

round cable

with 5 conductors

(Conductor cross

section: 0.2 mm2,

Insulator diameter:

1.1 mm),

Standard length:

2 m *3

Sensitivity adjuster (white)

Timer adjuster/

Turbo switch (black) *1

Turn to adjust the timer:

push to switch turbo function

Mounting Holes

929.2

1.2 10.7

3.1 7.2

55.5

7.2

16.9

28.9

Stainless

steel

(SUS304)

*The Mounting Bracket can be attached to side A.

Optical axis

Optical

axis

Two, M3 × 12 screws

With Mounting Bracket Attached

-AR16

Connector M12

42.3 (10)

15.2

2.3

12.4

1.3

12.8 20

11.5

Emitter

Receiver

Lens (7 × 14)

Optical

axis

Two, M3 × 12 screws

Stability indicator (green)

Light indicator (red)

Operation

mode

selector switch

Two, M3 holes

Sensitivity adjuster (white)

Mounting Holes

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E3S-A

Retro-reflective Sensors (Vertical)

Pre-wired Sensors

Sensors with Connectors

10.5 20

31.5

1.2 10.7

3.1

47.2

5.5 5.4 7.2

16.9

28.9

4.8

With Mounting Bracket Attached

Stainless

steel

(SUS304)

*The Mounting Bracket can be attached to side A.

Optical axis

Optical

axis

Two, M3 × 12 screws

-AR61

(4) *2

8.8 dia.

12.4

1.3

10.5 20

5.5

5.9

23.3

Emitter

Receiver

*1. Available on E3S-AR71 and E3S-AR91 only.

*2. 9.7 mm for E3S-AR71 and E3S-AR91.

*3. The E3S-AR611 or E3S-AR81 has three conductors.

Lens (5.7 × 10.9)

Optical axis

Two, M3 × 12 screws

Stability indicator

(green)

Light indicator

(red)

Operation mode

selector switch

Two, M3 holes

4-dia. vinyl-insulated

round cable

with 5 conductors

(Conductor cross

section: 0.2 mm2,

Insulator diameter:

1.1 mm),

Standard length:

2 m *3

Sensitivity

adjuster

(white)

Timer adjuster/

Turbo switch (black) *1

Turn to adjust the timer:

push to switch turbo function

Mounting Holes

Four

mounting

holes

10.5 20

31.5

1.2 10.7

3.1

41.7

5.4

7.2

19.4

31.4

4.8

Use these

two holes

for

mounting.

Stainless steel

(SUS304)

*The Mounting Bracket can be attached to side A.

Optical axis

Optical

axis

Two, M3 × 12 screws

E39-L60 Close Mounting Plate (provided)

(Attach the mounting plate or the

plug cannot be connected.)

With Mounting Bracket Attached

-AR66

M12

Connector

(10)

1.3

10.5 20

5.9

23.3

Stability indicator

(green)

Mounting Holes

Emitter

Receiver

Lens (5.7 × 10.9)

Optical axis

Two,

M3 × 12 screws

Light indicator (red)

Operation

mode

selector switch

Two, M3 holes

Sensitivity

adjuster

(white)

http://www.ia.omron.com/ 17

E3S-A

Diffuse-reflective Sensors (Horizontal)

Pre-wired Sensors

Sensors with Connectors

29.2

1.2 10.7

3.1 7.2

10.5

7.2

16.9

28.9

Stainless

steel

(SUS304)

*The Mounting Bracket can be attached to side A.

Optical axis

Optical

axis

Two, M3 × 12 screws

With Mounting Bracket Attached

-AD11

-AD31/32/33/41/42/43

1.3

10.5 20

11.5

12.9 7 5.5

(4)

8.8 dia.

12.4

Emitter

Receiver

*1. Timer adjuster: Not available on E3S-AD11, E3S-AD12, E3S-AD13, E3S-AD31,

E3S-AD32 and E3S-AD33.

Turbo switch: Available on E3S-AD21 and E3S-AD41 only.

*2. The E3S-AD11, E3S-AD12, E3S-AD13, E3S-AD31, E3S-AD32, or E3S-AD33 has three conductors.

Lens (7 × 14)

Optical

axis

Two, M3 × 12 screws

Stability indicator (green)

Light indicator (red)

Operation mode

selector switch

Two, M3 holes

4-dia. vinyl-insulated

round cable

with 4 conductors

(Conductor cross section: 0.2 mm2,

Insulator diameter: 1.1 mm),

Standard length: 2 m *2

Sensitivity adjuster (white)

Timer adjuster/

Turbo switch (black) *1

Turn to adjust the timer:

push to switch turbo function

Mounting Holes

5.5

29.2

1.2 10.7

3.1 7.2

7.2

16.9

28.9

Stainless

steel

(SUS304)

*The Mounting Bracket can be attached to side A.

Optical axis

Optical

axis

Two, M3 × 12 screws

With Mounting Bracket Attached

-AD16

11.5

10.5 20

12.9 7

(10)

12.4

1.3

Emitter

Receiver

Lens (7 × 14)

Two, M3 × 12 screws

Stability indicator (green)

Light indicator (red)

Operation mode

selector switch

Two, M3 holes

Sensitivity adjuster (white)

Optical

axis

M12 Connector

Mounting Holes

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E3S-A

Diffuse-reflective Sensors (Vertical)

Pre-wired Sensors

Sensors with Connectors

29.2

1.2 10.7

10.5 20

3.1

47.2

5.5 5.4 7.2

16.9

28.9

4.8

Stainless

steel

(SUS304)

*The Mounting Bracket can be attached to side A.

Optical axis

Optical

axis

Two, M3 × 12 screws

With Mounting Bracket Attached

-AD61

-AD81/82/83/91/92/93

5.5

3.6

1.3

10.5 20

(4)

8.8 dia.

12.4

Emitter

Receiver

*1. E3S-AD61, E3S-AD62, E3S-AD63, E3S-AD81, E3S-AD82, and E3S-AD83 have

three conductors.

*2. Timer adjuster: Not available on E3S-AD61, E3S-AD62, E3S-AD63, E3S-AD81,

E3S-AD82 and E3S-AD83.

Turbo switch: Available on E3S-AD71 and E3S-AD91 only.

Lens (7 × 14)

Optical axis

Two, M3 × 12 screws

Stability indicator

(green)

Light indicator (red)

Operation mode

selector

Two, M3 holes

4-dia. vinyl-insulated

round cable

with 4 conductors

(Conductor cross

section: 0.2 mm2,

Insulator diameter:

1.1 mm),

Standard length:

2 m *1

Sensitivity

adjuster

(white)

Timer adjuster/

Turbo switch (black) *2

Turn to adjust the timer:

push to switch turbo function

Mounting Holes

-AD66

29.2

1.2 10.7

10.5 20

3.1

41.7

5.4

7.2

19.4

31.4

4.8

Use these

two holes

for

mounting.

Stainless steel

(SUS304)

*The Mounting Bracket can be attached to side A.

Optical axis

Optical

axis

Two, M3 × 12 screws

E39-L60 Close Mounting Plate (provided)

(Attach the mounting plate or the

plug cannot be connected.)

With Mounting Bracket Attached

3.6

1.3

10.5 20

(10)

Receiver

Lens (7 × 14)

Optical axis

Two, M3 × 12 screws

Stability indicator

(green)

Light indicator (red)

Operation

mode

selector switch

Two, M3 holes

Sensitivity

adjuster

(white)

Emitter

Connector

M12

Mounting Holes

http://www.ia.omron.com/ 19

E3S-A

Accessories (Order Separately)

Reflectors

Mounting Brackets

Insert-type Long Slit (For Through-beam Model)

E39-S46

Name Dimensions A Material Quantity

Supporter 2 mm Stainless steel

(SUS304)

One each for Emitter and

Receiver (total of 2)

Slits 0.5 mm PVC One each for Emitter and

Receiver (total of 4)

1 mm

21.4 13.6

9.7

11.6 6.8

2.1

21.4

11.6 6.8

Filters for Mutual Interference Prevention

(For Through-beam Model)

E39-E6

Material: Stainless steel (SUS304)

* Two of each for the Emitter and

Receiver (total of four)

59.9

7.5

40.9

11.2

15.9

11.7

9.7

7.9 11.6

Bracket to be attached

to the Emitter panel of

E3S-A

Material:

Reflector: Acryl

Back: ABS

Optical Axis Confirmation Reflector

(For Through-beam Model)

E39-R5

In the interest of product improvement, specifications are subject to change without notice.

http://www.ia.omron.com/ 20

Photoelectric Sensors Technical Guide

General Precautions

For precautions on individual products, refer to Safety Precautions in individual product information.

These Sensors cannot be used in safety devices for

presses or other safety devices used to protect

human life. These Sensors are designed for use in

applications for sensing workpieces and workers

that do not affect safety.

To ensure safety, always observe the following precautions.

● Wiring

● Operating Environment

(1) Do not use a Sensor in an environment where there are explosive or inflammable gases.

(2) Do not use the Sensor in environments where the cables may become immersed in oil or other liquids or where liquids may penetrate the

Sensor. Doing so may result in damage from burning and fire, particularly if the liquid is flammable.

WARNING

Precautions for Safe Use

Item Typical examples

Power Supply Voltage

Do not use a voltage in

excess of the operating

voltage range.

Applying a voltage in excess

of the operating voltage

range, or applying AC power

(100 VAC or greater) to a DC

Sensor may cause explosion

or burning.

---

Load Short-circuiting

Do not short-circuit the load.

Doing so may cause explo-

sion or burning.

Incorrect Wiring

Do not reverse the power

supply polarity or otherwise

wire incorrectly. Doing so

may cause explosion or

burning.

Connection without a

load

If the power supply is

connected directly without a

load, the internal elements

may burst or burn. Be sure to

insert a load when

connecting the power

supply.

Load

Sensor

Brown

Blue Black

• DC Three-wire NPN Output Sensors

(Load

short

circuit)

Load

Sensor

Brown

Blue Black

• DC Three-wire NPN Output Sensor

(Load short circuit)

Load

Sensor

Brown

Blue

• AC Two-wire Sensors

Example: E3E2

Load

Sensor

Brown

Blue Black

• DC Three-wire NPN Output Sensors

Example: Incorrect Polarity

Load

Sensor

Brown

Blue Black

Sensor

Brown

Black Blue

• DC Three-wire NPN Output Sensors

Example: Incorrect Polarity Wiring

12 to

24VDC

Sensor

Brown

Blue

Black

• DC Three-wire NPN Output Sensors

Sensor

Brown

Blue

• AC 2-wire Sensors

Example: E3E2 etc.

http://www.ia.omron.com/ C-1

Photoelectric Sensors Technical Guide

● Design

Power Reset Time

The Sensor will be ready to detect within approximately 100 ms after

the power is turned ON.

If the Sensor and the load are connected to separate power supplies,

turn ON the Sensor power before turning ON the load power. Any

exceptions to this rule are indicated in Safety Precautions in individual

product information.

Turning OFF Power

An output pulse may be generated when the power is turned OFF. It

is recommended that the load or load line power be turned OFF

before the Sensor power is turned OFF.

Power Supply Types

An unsmoothed full-wave or half-wave rectifying power supply cannot

be used.

Mutual Interference

Mutual interference is a state where an output is unstable because the Sensors are affected by light from the adjacent Sensors.

The following measures can be taken to avoid mutual interference.

Precautions for Correct Use

Counter-

measure Concept Through-beam Sensors Reflective Sensors

Use a Sensor

with the

interference

prevention

function.

If Sensors are mounted in close proximity, use Sensors with the interference prevention function.

10 or fewer Sensors: E3X-DA@-S, E3X-MDA, E3C-LDA Fiber Sensors

Performance, however, will depend on conditions. Refer to pages E3X-DA-S/E3X-MDA

and E3C-LDA.

5 or fewer Sensors: E3X-NA Fiber Sensors

2 or fewer Sensors: E3T, E3Z, E3ZM, E3ZM-C, E3S-C, E3G-L1/L3, or E3S-C Built-in Amplifier Photoelectric

Sensors (except Through-beam Sensors)

E3C Photoelectric Sensor with separate amplifier

Install an

inference

prevention

filter.

A mutual interference prevention polarizing filter can be

installed on only the E3Z-TA to allow close-proximity

mounting of up to 2 Sensors.

Mutual Interference Prevention Polarizing Filter: E39-E11

---

Separate

Sensors to

distance where

interference

does not occur.

Check the parallel movement distance range in the

catalog, verify the set distance between adjacent

Sensors, and install the Sensors accordingly at a

distance at least 1.5 times the parallel movement

distance range.

If the workpieces move from far to near, chattering may

occur in the vicinity of the operating point. For this type of

application, separate the Sensors by at least 1.5 times the

operating range.

Alternate

Emitters and

Receivers.

Close mounting of Sensors is possible by alternating

the Emitters with the Receivers in a zigzag fashion (up

to two Sensors). However, if the workpieces are close

to the Photoelectric Sensors, light from the adjacent

Emitter may be received and cause the Sensor to

change to the incident light state.

---

Offset the

optical axes.

If there is a possibility that light from another Sensor

may enter the Receiver, change the position of the

Emitter and Receiver, place a light barrier between the

Sensors, or take other measures to prevent the light

from entering the Receiver.

(Light may enter even if the Sensors are separated by

more than the sensing distance.)

If Sensors are mounted in opposite each other, slant the

Sensors as shown in the following diagram. (This is

because the Sensors may affect each other and cause

output chattering even if separated by more than the

Sensor sensing distance.)

6Adjust the

sensitivity.

Lowering the sensitivity will generally help.

1.5 × L

Sensor Sensor

Workpiece

Emitter

Receiver

Emitter

Workpiece

Sensor Sensor

θθ

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Photoelectric Sensors Technical Guide

Noise

Countermeasures for noise depend on the path of noise entry, frequency components, and wave heights. Typical measures are as given in the

following table.

● Wiring

Cable

Unless otherwise indicated, the maximum length of cable extension is

100 m using wire that is 0.3 mm2 or greater.

Exceptions are indicated in Safety Precautions in individual product

information.

Cable Tensile Strength

When wiring the cable, do not subject the cable to a tension greater than

that indicated in the following table.

Note: Do not subject a shielded cable or coaxial cable to tension.

Repeated Bending

Normally, the Sensor cable should not be bent repeatedly.

(For bending-resistant cable, see Attachment to Moving Parts on

page C-4.)

Separation from High Voltage (Wiring Method)

Do not lay the cables for the Sensor together with high-voltage lines

or power lines. Placing them in the same conduit or duct may cause

damage or malfunction due to induction interference. As a general

rule, wire the Sensor in a separate system, use an independent metal

conduit, or use shielded cable.

Work Required for Unconnected Leads

Unused leads for self-diagnosis outputs or other special functions

should be cut and wrapped with insulating tape to prevent contact with

other terminals.

Type of noise Noise intrusion path and countermeasure

Before countermeasure After countermeasure

Common mode noise

(inverter noise)

Common noise

applied between the

mounting board and

the +V and 0-V

lines, respectively.

Noise enters from the noise source through the frame

(metal).

(1) Ground the inverter motor (to 100 Ω or less)

(2) Ground the noise source and the power supply (0-V

side) through a capacitor (film capacitor, 0.22 μF, 630

V).

(3) Insert an insulator (plastic, rubber, etc.) between the

Sensor and the mounting plate (metal).

Radiant noise

Ingress of high-fre-

quency electromag-

netic waves directly

into Sensor, from

power line, etc.

Noise propagates through the air from the noise source

and directly enters the Sensor.

•Insert a shield (copper) plate between the Sensor and

the noise source e.g., a switching power supply).

•Separate the noise source and the Sensor to a distance

where noise does not affect operation.

Power line noise

Ingress of electromag-

netic induction from

high-voltage wires

and switching noise

from the switching

power supply

Noise enters from the power line. •Insert a capacitor (e.g., a film capacitor), noise filter (e.g.,

ferrite core or insulated transformer), or varistor in the

power line.

Sensor

Noise

Inverter

motor

Mounting block

(metal)

Sensor

Insert an insulator.

Inverter motor

Noise

Mounting block

(metal)

(3)

(2)

(1)

Noise

Sensor

Noise

source

Sensor

Shield plate (copper)

Noise

source

Sensor

Noise

Noise +V

Sensor

Insert a capacitor, etc.

Noise +V

Cable diameter Tensile strength

Less than 4 mm 30 N max.

4 mm or greater 50 N max.

Power line

http://www.ia.omron.com/ C-3

Photoelectric Sensors Technical Guide

Power Supply

When using a commercially available switching regulator, ground the

FG (frame ground) and G (ground) terminals.

If not grounded, switching noise in the power supply may cause

malfunction.

Example of Connection with S3D2 Sensor Controller

DC Three-wire NPN Output Sensors

Reverse operation is possible using the signal input switch on the

S3D2.

● Mounting

Attachment to Moving Parts

To mount the Photoelectric Sensor to a moving part, such as a robot

hand, consider using a Sensors that uses a bending-resistant cable

(robot cable).

Although the bending repetition tolerance of a standard cable is

approximately 13,000 times, robot cable has an excellent bending

tolerance of approximately 500,000 times.

Cable Bending Destruction Test (Tough Wire Breaking

Test)

With current flowing, bending is repeated to check the number of

bends until the current stops.

The testing conditions of the standard cable and robot cable are

different.

Refer to the values in the above table to check bend-resistant

performance under actual working conditions.

S3D2

Blue 0 V

Black OUT

Brown +12 V

Specimen Standard cable

VR (H) 3 x18/0.12

Robot cable: Strong,

conductive electrical wire

2 x 0.15 mm

, shielded

Test

Description/conditions

Bending

angle (θ)Left/right 90° each Left/right 45° each

Bending

repetitions --- 60 bends/minute

Weight 300g 200g

Operation

per bending

(1) through (3) in

figure once

(1) through (3) in

figure once

Bending

radius of

support

points (R)

5 mm 2.5 mm

Result Approx. 13,000 times Approx. 500,000 times

Weight

(1) (3)

(2)

θθ

http://www.ia.omron.com/ C-4

Photoelectric Sensors Technical Guide

Securing Fibers

The E3X Fiber Unit uses a one-touch locking mechanism. Use the

following methods to attach and remove Fiber Units.

(1) Attaching Fibers

Open the protective cover, insert the fiber up to the insertion mark on

the side of the Fiber Unit, and then lower the lock lever.

(2) Removing Fibers

Open the protective cover, lift up the lock lever, and pull out the fibers.

● Adjustments

Optical Axis Adjustment

Move the Photoelectric Sensor both vertically and horizontally and set

it in the center of the range in which the operation indicator is lit or not

lit. For the E3S-C, the optical axis and the mechanical axis are the

same, so the optical axis can be easily adjusted by aligning the

mechanical axis.

Optical axis: The axis from the center of the lens to the center of

the beam for the Emitter and the axis from the

center of the lens to the center of the reception area

for the Receiver.

Mechanical axis: The axis perpendicular to the center of the lens.

Note:1.To maintain the fiber characteristics, make sure that the lock

is released before removing the fibers.

2. Lock and unlock the fibers at an ambient temperature of

−10 to 40°C.

9mm

Insertion

position

Locked

position

Lock released position

Protective cover

Lock lever

Fiber insertion mark

Fiber

Locked position

Lock released

position

Protective cover

Emitter

Receiver

Incident indicator or Operation indicato

ON OFF

Incident indicator or Operation indicato

Optimum value

ON OFF

Emitter Receiver

Emission beam

Optical axis Optical axis

Mechanical axis

Reception area

http://www.ia.omron.com/ C-5

Photoelectric Sensors Technical Guide

● Operating Environment

Water Resistance

Do not use in water, in rain, or outside.

Ambient Conditions

Do not use this Sensor in the following locations. Otherwise, it may

malfunction or fail.

(1) Locations exposed to excessive dust and dirt

(2) Locations exposed to direct sunlight

(3) Locations with corrosive gas vapors

(4) Locations where organic solvents may splash onto the Sensor

(5) Locations subject to vibration or shock

(6) Locations where there is a possibility of direct contact with water,

oil, or chemicals

(7) Locations with high humidity and where condensation may result

Environmentally Resistive Sensors

The E32-T11F/T12F/T14F/T81F-S/D12F/D82F and E3HQ can be used

in locations (3) and (6) above.

Optical Fiber Photoelectric Sensors in Explosive Gas

Atmospheres

The Fiber Unit can be installed in the hazardous area, and the

Amplifier Unit can be installed in a non-hazardous area.

For explosion or fire due to electrical equipment to occur, both the

hazardous atmosphere and a source of ignition must be in the same

location. Optical energy does not act as an ignition source, thus there

is no danger of explosion or fire. The lens, case, and fiber covering are

made of plastic, so this setup cannot be used if there is a possibility of

contact with solvents that will corrode or degrade (e.g., cloud) the

plastic.

Electrical sparks or high-temperature parts that have sufficient energy

to cause explosion in a hazardous atmosphere are called ignition

sources.

Influence from External Electrical Fields

Do not bring a transceiver near the Photoelectric Sensor or its wiring,

because this may cause incorrect operation.

● Maintenance and Inspection

Points to Check When the Sensor Does Not Operate

•If the Sensor does not operate, check the following points.

(1) Are the wiring and connections correct?

(2) Are any of the mounting screws loose?

(3) Are the optical axis and sensitivity adjusted correctly?

(4) Do the sensing object and the workpiece speed satisfy the ratings

and specifications?

(5) Are any foreign objects, such as debris or dust, adhering to the

Emitter lens or Receiver lens?

(6) Is strong light, such as sunlight (e.g., reflected from a wall), shining

on the Receiver?

(7) Do not attempt to disassemble or repair the Sensor under any

circumstances.

(8) If you determine that the Sensor clearly has a failure, immediately

turn OFF the power supply.

Lens and Case

The lens and case of the Photoelectric Sensor are primarily made of

plastic. Dirt should be gently wiped off with a dry cloth. Do not use

thinner or other organic solvents.

•

The case of the E3ZM, E3ZM-C and E3S-C is metal. The lens,

however, is plastic.

● Accessories

Using a Reflector (E39-R3/R37/RS1/RS2/RS3)

During Application

(1) When using adhesive tape on the rear face, apply it after washing

away oil and dust with detergent. The Reflector cannot be

mounted if there is any oil or dirt remaining.

(2) Do not press on the E39-RS1/RS2/RS3 with metal or a

fingernail.This may weaken performance.

(3) This Sensor cannot be used in locations where oil or chemicals

may splash on the Sensor.

M8 and M12 Connectors

•Be sure to connect or disconnect the connector after turning OFF

the Sensor.

•Hold the connector cover to connect or disconnect the connector.

•Secure the connector cover by hand. Do not use pliers, otherwise

the connector may be damaged.

•If the connector is not connected securely, the connector may be

disconnected by vibration or the proper degree of protection of the

Sensor may not be maintained.

● Others

Values Given in Typical Examples

The data and values given as typical examples are not ratings and

performance and do not indicate specified performance. They are

rather values from samples taken from production lots, and are

provided for reference as guidelines. Typical examples include the

minimum sensing object, engineering data, step (height) detection

data, and selection list for specifications.

Cleaning

•Keep organic solvents away from the Sensor. Organic solvents will

dissolve the surface.

•Use a soft, dry cloth to clean the Sensor.

Non-hazardous area

Amplifier Unit

Fiber Unit

Sensing object

Hazardous area

http://www.ia.omron.com/ C-6

2008.9

OMRON Corporation

Industrial Automation Company

In the interest of product improvement, specifications are subject to change without notice.

Read and Understand This Catalog

Please read and understand this catalog before purchasing the products. Please consult your OMRON representative if you have any questions or

comments.

Warranty and Limitations of Liability

WARRANTY

OMRON's exclusive warranty is that the products are free from defects in materials and workmanship for a period of one year (or other period if

speciﬁ ed) from date of sale by OMRON.

OMRON MAKES NO WARRANTY OR REPRESENTATION, EXPRESS OR IMPLIED, REGARDING NON-INFRINGEMENT, MERCHANTABILITY, OR

FITNESS FOR PARTICULAR PURPOSE OF THE PRODUCTS. ANY BUYER OR USER ACKNOWLEDGES THAT THE BUYER OR USER ALONE

HAS DETERMINED THAT THE PRODUCTS WILL SUITABLY MEET THE REQUIREMENTS OF THEIR INTENDED USE. OMRON DISCLAIMS ALL

OTHER WARRANTIES, EXPRESS OR IMPLIED.

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OMRON SHALL NOT BE RESPONSIBLE FOR SPECIAL, INDIRECT, OR CONSEQUENTIAL DAMAGES, LOSS OF PROFITS, OR COMMERCIAL

LOSS IN ANY WAY CONNECTED WITH THE PRODUCTS, WHETHER SUCH CLAIM IS BASED ON CONTRACT, WARRANTY, NEGLIGENCE, OR

STRICT LIABILITY.

In no event shall responsibility of OMRON for any act exceed the individual price of the product on which liability is asserted.

IN NO EVENT SHALL OMRON BE RESPONSIBLE FOR WARRANTY, REPAIR, OR OTHER CLAIMS REGARDING THE PRODUCTS UNLESS

OMRON'S ANALYSIS CONFIRMS THAT THE PRODUCTS WERE PROPERLY HANDLED, STORED, INSTALLED, AND MAINTAINED AND NOT

SUBJECT TO CONTAMINATION, ABUSE, MISUSE, OR INAPPROPRIATE MODIFICATION OR REPAIR.

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SUITABILITY FOR USE

OMRON shall not be responsible for conformity with any standards, codes, or regulations that apply to the combination of products in the customer's

application or use of the product.

At the customer's request, OMRON will provide applicable third party certiﬁ cation documents identifying ratings and limitations of use that apply to the

products. This information by itself is not sufﬁ cient for a complete determination of the suitability of the products in combination with the end product,

machine, system, or other application or use.

The following are some examples of applications for which particular attention must be given. This is not intended to be an exhaustive list of all possible

uses of the products, nor is it intended to imply that the uses listed may be suitable for the products:

• Outdoor use, uses involving potential chemical contamination or electrical interference, or conditions or uses not described in this catalog.

• Nuclear energy control systems, combustion systems, railroad systems, aviation systems, medical equipment, amusement machines, vehicles, safety

equipment, and installations subject to separate industry or government regulations.

• Systems, machines, and equipment that could present a risk to life or property.

Please know and observe all prohibitions of use applicable to the products.

NEVER USE THE PRODUCTS FOR AN APPLICATION INVOLVING SERIOUS RISK TO LIFE OR PROPERTY WITHOUT ENSURING THAT THE

SYSTEM AS A WHOLE HAS BEEN DESIGNED TO ADDRESS THE RISKS, AND THAT THE OMRON PRODUCT IS PROPERLY RATED AND

INSTALLED FOR THE INTENDED USE WITHIN THE OVERALL EQUIPMENT OR SYSTEM.

Disclaimers

CHANGE IN SPECIFICATIONS

Product speciﬁ cations and accessories may be changed at any time based on improvements and other reasons.

It is our practice to change model numbers when published ratings or features are changed, or when signiﬁ cant construction changes are made.

However, some speciﬁ cations of the product may be changed without any notice. When in doubt, special model numbers may be assigned to ﬁ x

or establish key speciﬁ cations for your application on your request. Please consult with your OMRON representative at any time to conﬁ rm act u a l

speciﬁ cations of purchased product.

DIMENSIONS AND WEIGHTS

Dimensions and weights are nominal and are not to be used for manufacturing purposes, even when tolerances are shown.

ERRORS AND OMISSIONS

The information in this catalog has been carefully checked and is believed to be accurate; however, no responsibility is assumed for clerical,

typographical, or proofreading errors, or omissions.

PERFORMANCE DATA

Performance data given in this catalog is provided as a guide for the user in determining suitability and does not constitute a warranty. It may represent

the result of OMRON’s test conditions, and the users must correlate it to actual application requirements. Actual performance is subject to the OMRON

Warranty and Limitations of Liability.

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OMRON shall not be responsible for the user's programming of a programmable product, or any consequence thereof.

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