Datasheet

7E3H2
Output Circuit Diagram
PNP Output
Model Operation
mode
Timing charts Mode
selector switch
Output circuit
E3H2-T4B@
E3H2-R2B@
E3H2-D@B@
Light ON For through-
beam and retro-
reflective: con-
nect the white
wire (Pin 2) to the
brown wire
(Pin 1).
For diffuse-re-
flective: open (do
not connect) the
white wire
(Pin 2).
Dark ON For through-
beam and retro-
reflective: open
(do not connect)
the white wire
(Pin 2).
For diffuse-re-
flective: connect
the white wire
(Pin 2) to the
brown wire (Pin
1).
E3H2-T2B@ Light ON n.a. fixed for
E3H2-T2B1@
Dark ON n.a. fixed for
E3H2-T2B2@
Light Incident
Light Interrupted
ON
OFF
ON
OFF
Operate
Reset
Operation indicator
(yellow)
Output transistor
Load
(e.g. relay)
4
1
3
0 V
Z
D
Operation
indicator
(Yellow)
Photo-
electric
Sensor
Main
Circuit
(Control
output)
10 to 30 VDC
Brown
Black
Blue
White
100 mA
max.
Load
(Relay)
Through-beam receiver, retro-reflective,
diffuse-reflective
2
Mode Selection /
Te ac h
1
2
3
4
Connector Pin Arrangement
Light Incident
Light Interrupted
ON
OFF
ON
OFF
Operate
Reset
Operation indicator
(yellow)
Output transistor
Load
(e.g. relay)
3
1
Through-beam emitter
Power
indicator
(yellow)
Photo-
electric
Sensor
Main
Circuit
Brown
Blue
10 to 30 VDC
Connector Pin Arrangement
1
2
3
4
Light Incident
Light Interrupted
ON
OFF
ON
OFF
Operate
Reset
Operation indicator
(yellow)
Output transistor
Load
(e.g. relay)
4
1
3
0 V
Z
D
Through-beam receiver
Operation
indicator
(Yellow)
Photo-
electric
Sensor
Main
Circuit
(Control
output)
10 to 30 VDC
Brown
Black
Blue
100 mA
max.
Load
(Relay)
4
1
3
Connector Pin Arrangement
Light Incident
Light Interrupted
ON
OFF
ON
OFF
Operate
Reset
Operation indicator
(yellow)
Output transistor
Load
(e.g. relay)
3
1
Through-beam emitter
Power
indicator
(yellow)
Photo-
electric
Sensor
Main
Circuit
Brown
Blue
10 to 30 VDC
4
1
3
Connector Pin Arrangement