Omron E3s-a Sensor

Built-in Amplifier Photoelectric Sensor (Medium Size)

E3S-A

Be sure to read Safety Precautions
on page 10.

Ordering Information

CSM_E3S-A_DS_E_5_1

Built-in Amplifier Photoelectric Sensors

Sensing method Appearance

Horizontal

Through-beam

Sensors *1

Vertical

Horizontal

Retro-reflective

Sensors

Vertical

*1.Through-beam Sensors are normally sold in sets that include both the Emit ter and Receiver.

Orders for individual Emitters and Receivers are accepted.

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

Connection

method

Pre-wired

Connector
(M12)

Pre-wired

Connector
(M12)

Pre-wired

Connector
(M12)

Pre-wired

Connector
(M12)

Sensing distance Functions

Self Diagnosis

7 m

Self Diagnosis

Self Diagnosis

2 m

(100 mm)

*2

Self Diagnosis

Red light Infrared light

Model

NPN output PNP output

Timer

Timer

---

Turbo

External

Diagnosis

Emitter

E3S-AT11-L

Receiver

E3S-AT11-D

E3S-AT21

Emitter

E3S-AT21-L

Receiver

E3S-AT21-D

E3S-AT16

E3S-AT11

---

Emitter
Receiver

E3S-AT16-L
E3S-AT16-D

E3S-AT61

---

Turbo

External

Diagnosis

Emitter

E3S-AT61-L

Receiver

E3S-AT61-D

E3S-AT71

Emitter

E3S-AT71-L

Receiver

E3S-AT71-D

E3S-AT66

---

Emitter
Receiver

E3S-AT66-L
E3S-AT66-D

E3S-AT31

Emitter
Receiver

E3S-AT41

Emitter
Receiver

E3S-AT36

Emitter
Receiver

E3S-AT81

Emitter
Receiver

E3S-AT91

Emitter
Receiver

E3S-AT86

Emitter
Receiver

--- E3S-AR11 E3S-AR31

Timer

Turbo

External

Diagnosis

E3S-AR21 E3S-AR41

--- E3S-AR16 E3S-AR36

--- E3S-AR61 E3S-AR81

Timer

Turbo

External

Diagnosis

E3S-AR71 E3S-AR91

--- E3S-AR66 E3S-AR86

E3S-AT31-L
E3S-AT31-D

E3S-AT41-L
E3S-AT41-D

E3S-AT36-L
E3S-AT36-D

E3S-AT81-L
E3S-AT81-D

E3S-AT91-L
E3S-AT91-D

E3S-AT86-L
E3S-AT86-D

1

E3S-A

Sensing method Appearance

Horizontal

Diffuse-reflective

Sensors

Vertical

Connection

method

Pre-wired

Connector
(M12)

Pre-wired

Sensing distance Functions

--- E3S-AD13 *3E3S-AD33

100 mm (wide view)

Timer

--- E3S-AD11 E3S-AD31

200 mm

Timer

Self Diagnosis

--- E3S-AD12 E3S-AD32

700 mm

Timer

Self Diagnosis

100 mm (wide view)

200 mm

---

700 mm

--- E3S-AD63 *3E3S-AD83

100 mm (wide view)

Timer

--- E3S-AD61 E3S-AD81

200 mm

Timer

Self Diagnosis

--- E3S-AD62 E3S-AD82

700 mm

Timer

Self Diagnosis

Turbo

Turbo

Self Diagnosis

Turbo

Self Diagnosis

Model

NPN output PNP output

E3S-AD23 E3S-AD43

E3S-AD21 E3S-AD41

E3S-AD22 E3S-AD42
E3S-AD18 E3S-AD38

E3S-AD16 E3S-AD36
E3S-AD17 E3S-AD37

E3S-AD73 E3S-AD93

E3S-AD71 E3S-AD91

E3S-AD72 E3S-AD92

Connector
(M12)

200 mm

700 mm

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

100 mm (wide view)

---

E3S-AD68 E3S-AD88
E3S-AD66 E3S-AD86
E3S-AD67 E3S-AD87

Accessories (Order Separately)

Insert-type Long Slit

Slit width Sensing distance

0.5 mm × 11.1 mm
1 mm × 11.1 mm

2 mm × 13.6 mm

500 mm

1.1 m

2.5 m

Mutual Interference Prevention Filters

Sensing distance Model Quantity Remarks

2.4 m E39-E6

Reflectors/Other Accessories

Name Sensing distance (typical) Model Quantity Remarks

Reflectors

Small Reflectors

2 m (100 mm) *

(rated value)

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

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

450 mm (100 mm) * E39-RS1 1

Tape Reflectors

900 mm (100 mm) * E39-RS3 1

Optical Axis
Confirmation Reflector

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.

Minimum sensing

object (typical)

Model Quantity Remarks

0.2-mm dia.

0.4-mm dia.

E39-S46

0.8-mm dia.

2 of each for Emitter/Receiver
(4 Filters total)

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

➜ Page 10

E39-R1 1 Provided with E3S-AR@@ Retro-reflective Sensor.

--- E39-R5 1

1 of each for Emitter/
Receiver (4 Slits total)

1 of each for Emitter/
Receiver (2 Slits total)

Slits can be used with the E3S­AT@@ Through-beam
Sensor.➜Page 10

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

Used to check optical axis for the E3S-AT@@
Through-beam Sensor.

2

Mounting Brackets/Other

Appearance Model Quantity Remarks

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

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

E3S-A

E39-L59 1

E39-L81 1

E39-L97 1

E39-L98 1

E39-L60 1

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

Provided with E3S-A Vertical Pre-wired
Sensors.

Provided with E3S-A Vertical Connector
Sensors.

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.

Protective Cover for Vertical Sensors

Note: When mounting Sensors with Connectors, the

Sensor I/O Connector will be longer. Mount the
Sensor with care.

Close Mounting Plate:
Provided with E3S-A Connector Sensors.

Sensors I/O Connectors

Model Quantity Remarks

E39-G2 1 Provided with product.

Sensors I/O Connectors

Cable Appearance Cable type Model

Straight

Standard

L-shaped

Note: When using Through-beam models, order one connector for the Receiver and one for the Emitter.

2 m
5 m
2 m
5 m

3-wire

XS2F-D421-DC0-A
XS2F-D421-GC0-A
XS2F-D422-DC0-A
XS2F-D422-GC0-A

3

Ratings and Specifications

E3S-A

Sensing method

Item

Sensing distance 7 m

Standard sensing object

Differential travel ---

Directional angle
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

Control output
Self-diagnostic output (Only

on Sensors with self-diagnos­tic outputs)

External
diagnostic
input
(Only on
Sensors with
external
diagnostic
outputs)

Protection circuits

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)
Turbo function (Only on Sen-

sors with the turbo function)
Ambient illumination (Receiv-

er side)
Ambient temperature

Ambient humidity
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)
Shock resistance

(destruction)
Degree of protection IEC IP67; NEMA: 4X (indoors only) *2
Connection method Pre-wired (standard length: 2 m) or M12 connector

Weight (packed state)

Case PBT

Material

Accessories

*1.Values in brackets are the minimum required distance between the Sensor and Reflector.
*2.National Electrical Manufacturers Association

Lens Denatured polyallylate
Mounting

Bracket

Model

Input
voltage

Response
time

Through-beam

Sensors

E3S-AT11, 16, 21, 31,
36, 41, 61, 66, 71, 81,
86, 91

Opaque:
10-mm dia. min.

Both Emitter and
Receiver: 3° to 15°

Both Emitter and
Receiver: 20 mA max.
(plus approx. 15 mA with
turbo function)

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

(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)

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.)

0.5 ms max.
Power supply reverse

polarity protection,
Output short-circuit
protection

0 to 100 ms OFF-delay variable adjuster

Yes (with turbo switch) --­Incandescent lamp: 5,000 lx max.

Sunlight: 10,000 lx max.
Operating: −25°C to 55°C (with no icing or condensation)

Storage: −40°C to 70°C (with no icing or condensation)
Operating: 35% to 85% (with no condensatio n)

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

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

Destruction: 500m/s

Pre-wired cable:
Approx. 150 g
Connector: Approx. 70 g

Stainless steel (SUS304)
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)

2

Retro-reflective

Sensors

(with MSR function)

E3S-AR11, 16, 21, 31,
36, 41, 61, 66, 71, 81,
86, 91

2 m (100 mm) *1
(When using E39-R1)

Opaque:
75-mm dia. min.

3 to 10° ---

30 mA max. (plus
approx. 15 mA with
turbo function)

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

, 3 times each in X, Y, and Z directions

Pre-wired cable:
Approx. 110 g
Connector: Approx. 60 g

E3S-AD13, 18, 23, 33,
38, 43, 63, 68, 73, 83,
88, 93

100 mm (wide view)
(white paper 100 ×
100 mm)

20% max. of sensing
distance

35 mA max.

Pre-wired cable: Approx. 90 g
Connector: Approx. 50 g

Diffuse-reflective Sensors

E3S-AD11, 16, 21, 31,
36, 41, 61, 66, 71, 81,
86, 91

10 to 200 mm
(white paper 100 ×
100 mm)

---

10% max. of sensing
distance

30 mA max. (plus
approx. 15 mA with
turbo function)

---

E3S-AD12, 17, 22, 32,
37, 42, 62, 67, 72, 82,
87, 92

700 mm
(white paper 200 ×
200 mm)

20% max. of sensing
distance

35 mA max.

4

Engineering Data (Typical)

Parallel Sensing Range

Through-beam Sensors Through-beam Sensors Through-beam Sensors
E3S-AT@@ E3S-AT@@ + E39-S46

(Slit Sold Separately)

500
400

300
200

Distance Y (mm)

100

0

−100

−200

−300

−400

−500

Y

X

2 4 6 8

Distance X (m)

200

100

Slit width: 2 mm

Slit width: 1 mm

Distance Y (mm)

0

1 2 3 4 5 6 7 8

−100

Slit width: 0.5 mm

−200

Y

X

Distance X (m)

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

100

E39-R1 Reflector

80
60
40

Distance Y (mm)

20

0

0.5 1.0 1.5 2.0 2.5

−20

−40

−60

−80

−100

Y

X

Distance X (m)

40

Sensing object: white paper

@1/@3/@6/@8: 100 × 100 mm

E3S-AD

30

20

Distance Y (mm)

10

0

−10

−20

−30

−40

E3S-AD

200

E3S-AD@3/@8

@2/@7: 200 × 200 mm

E3S-AD@1/@6

400 600 800

E3S-AD@2/@7

X

Distance X (m)

Excess Gain vs. Set Distance

Through-beam Sensors Retro-reflective Sensors
E3S-AT@@ E3S-AR@@ + E39-R1 (with Reflector)

500
300

100

50
30

Excess gain ratio (times)

10

5
3

Oper­ating

1

level

0 3 5 7 10

Distance (m)

100

E39-R1 Reflector

50
30

10

Excess gain ratio (times)

5
3

Oper­ating

1

level

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

Distance (m)

E3S-AT@@ + E39-E6
(Filter Sold Separately)

200

100

Distance Y (mm)

0

−100

−200

Y

1 2 3 4 5 6

E3S-A

Y

X

Distance X (m)

5

E3S-A

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)

500

Sensing object: White paper

300

100

50
30

Excess gain ratio (times)

10

5
3

Oper­ating

1

level

0.5

@1/@3/@6/@8: 100 × 100 mm

E3S-AD

@2/@7: 200 × 200 mm

E3S-AD

E3S-AD@2/@7

E3S

-AD@1/@6

E3S-AD@3/@8

0 0.2 0.4 0.6 0.8 1 1.2

Distance (m)

I/O Circuit Diagrams

NPN Output

Model

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

*Models numbers for Through-beam Sensors (E3S-AT@@) are for sets that include both the Emitter and Receiver.

The model number of the Emitter is expressed by adding "-L" to the set model number (example: E3S-AT11-L 2M), the mode l number of the Receiver, by adding "-D"
(example: E3S-AT11-D 2M). Refer to Ordering Information to confirm model numbers for Emitter and Receivers.

Operation

mode

Light-ON

Dark-ON

Timing charts

Incident light

No incident light

Light indicator
(red)

Output
transistor

Load
(e.g., relay)

Incident light

No incident light

Light indicator
(red)

Output
transistor

Operate

Load
(e.g., relay)

Operate

Through-beam Emitters

E3S-AD@1/AD@2/AD@3/AD@6/AD@7/
AD@8 (Detection of Black Paper)

100

Sensing object: Black paper

@1/@3/@6/@8: 100 × 100 mm

E3S-AD

50
30

10

5

Excess gain ratio (times)

3

Oper­ating

1

level

0.5

0.3

0.1
0 200 400 600 800

@2/@7: 200 × 200 mm

E3S-AD

E3S

-AD@1/@6

E3S-AD@3/@8

E3S-AD@2/@7

Mode

selector

switch

ON

OFF

ON

OFF

Reset

(Between brown and black)

ON

OFF

ON

OFF

Reset

(Between brown and black)

Power
indica­tor

Photo-

(red)

electric
Sensor
main
circuit

L Side
(LIGHT ON)

D Side
(DARK ON)

Brown

1

Blue

3

E3S-AD@1/AD@2/AD@3/AD@6/AD@7/
AD@8

1.2

Sensing object: white paper

OFF
ON

OFF
ON

OFF
ON

Side of object (mm)

Distance (mm)

1

Distance (m)

0.8

0.6

0.4

0.2

0

50 × 50 100 × 100 200 × 200 300 × 300

E3S-AD@2/@7

E3S-AD@1/@6

E3S-AD@3/@8

Output circuit

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

Light
indi­cator

(red)

Stability
indicator

(green)

10 to
30 VDC

Photo­electric
Sensor
main
circuit

Connector Pin Arrangement

Note: Pin 2 is not used.

Brown

1

(Control

Load

output)

Black

4

Z

D

Blue

3

1

2

4

3

(Relay)

100 mA max.

Connector Pin Arrangement

1

2

4

3

Note: Pins 2 and 4 are not used.

10 to
30 VDC

6

E3S-A

Model

E3S-AT21 *
E3S-AT71 *

E3S-AD21
E3S-AD71
E3S-AD22
E3S-AD72
E3S-AD23
E3S-AD73

Operation

mode

Light-ON

Dark-ON

--- ---

Timing charts

Incident light

No incident light

Light indicator
(red)

Output
transistor

Load
(e.g., relay)

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

No incident light

Light indicator
(red)

Output
transistor

Load
(e.g., relay)

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

External
diagnostic
input

Emitter LED

ON

OFF

ON

OFF

Operate

Reset

(Between brown and black)

Incident light

ON

OFF

ON

OFF

Operate

Reset

(Between brown and black)

ON

OFF

ON

OFF

ON

Indicator
(red)

OFF

(Between blue and pink)

T

T

Mode

selector

switch

L Side
(LIGHT ON)

D Side
(DARK ON)

Output circuit

Through-beam Receivers, Diffuse-reflective Sensors

Z

D

Brown

Pink

Blue

Brown

Black

Orange

Blue

10 to 30 VDC

(External
diagnostic input)

Light
indica­tor

(red)

Stability
indicator
(green)

Photo­electric
Sensor
main
circuit

Through-beam Emitters

Power indicator
(red)

Photo­electric
Sensor
main
circuit

100 mA max.

Z

D

50 mA max.

Load

(relay)

(Control
output)

(Self-diagnostic
output)

0 V

Load

(relay)

10 to
30 VDC

E3S-AR21
E3S-AR71

Light-ON

Dark-ON

Incident light

No incident light

Light indicator
(red)

Output
transistor

Load
(e.g., relay)

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

No incident light

Light indicator
(red)

Output
transistor

Load
(e.g., relay)

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

ON

OFF

ON

OFF

Operate

Reset

(Between brown and black)

Incident light

ON

OFF

ON

OFF

Operate

Reset

(Between brown and black)

T

L Side
(LIGHT ON)

T

D Side
(DARK ON)

Retro-reflective Sensors

Light
indica­tor

(red)

Stability
indicator
(green)

Photo­electric
Sensor
main
circuit

100 mA max.

Z

D

50 mA max.

Brown

Load

(relay)

(Control
output)

(Self-diagnostic
output)

Load

(relay)

(External
diagnostic input)

10 to
30 VDC

Black

Orange

Z

D

Pink

12 K

Blue

*Models numbers for Through-beam Sensors (E3S-AT@1) are f or sets that include both the Emitter and Receiver.

The model number of the Emitter is expressed by adding "-L" to the set model number (example: E3S-AT21-L 2M), the model number of the Receiver, by adding "­D" (example: E3S-AT21-D 2M). Refer to Ordering Information to confirm model numbers for Emitter and Receivers.

Structure of Sensor I/O Connector

Classification Wire color Connection Pin No. Application

Brown1 +V

For DC

--- 2 ---

Blue 3 0 V

Black 4 Output

Note: Pin No. 2 is not used.

2

1 3

4

Terminal No.

1
2
3
4

XS2F-D421-DC0-F

Brown

Blue
Black

7