7

E3S-A

* Models numbers for Through-beam Sensors (E3S-AT

@1) 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-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

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

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

Incident light

No incident light

ON

OFF

ON

OFF

Operate

Reset

Light indicator

(red)

(Between brown and black)

Output

transistor

Load

(e.g., relay)

(Self-diagnostic

output)

ZD

ZD

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

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

Incident light

No incident light

ON

OFF

ON

OFF

Operate

Reset

Light indicator

(red)

(Between brown and black)

Output

transistor

Load

(e.g., relay)

External

diagnostic

input

Emitter LED

Indicator

(red)

ON

OFF

ON

OFF

ON

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

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

Incident light

No incident light

ON

OFF

ON

OFF

Operate

Reset

Light indicator

(red)

(Between brown and black)

Output

transistor

Load

(e.g., relay)

12 K

(External

diagnostic input)

(Self-diagnostic

output)

ZD

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.

ZD

Pink

T

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

Incident light

No incident light

ON

OFF

ON

OFF

Operate

Reset

Light indicator

(red)

(Between brown and black)

Output

transistor

Load

(e.g., relay)

2

4

1

3

1

2

3

4

Terminal No.

XS2F-D421-DC0-F

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