Omron CQM1H - 08-2005 - I;O Unit Wiring

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Wiring and Connections Section 4-7
4-7-3 I/O Unit Wiring
Input Devices When connecting an external device with a DC output to a DC Input Unit, wire
the device as shown in the following table.
Device Circuit Diagram
Contact output
NPN open collector
NPN current output
PNP current output
Voltage output
IN
COM(+)
Relay
0 V
+
IN
COM(+)
Sensor
Sensor power
supply
Output
Sensor power
supply
0 V
+
IN
COM(+)
Constant current
circuit
Output
Use the same power supply for
the input and sensor.
+
Sensor power
supply
COM(–)
0 V
IN
+
Output
Sensor power
supply
IN
COM (+)
0 V
Output