Omron NX-ID3343 User Manual page 111

Wiring to the DC Input Units (When I/O Power Is Supplied from an
External Source)
Use the following information for reference when selecting or connecting input devices.
 DC Input Units
The following types of DC input devices can be connected.
Contact output
NPN open-collector output
+
Output
7 mA
0 V
Voltage output
+
Output
0 V
• The circuit below should NOT be used for I/O devices having a voltage output.
+
Output
0 V
NX-series Digital I/O Unit User's Manual (W521)
IN
DC Input Unit
COM
Sensor
Power
DC Input Unit
Supply
IN
COM
COM
IN
Sensor
Power
DC Input Unit
Supply
Sensor
Power
DC Input Unit
Supply
IN
COM
4 Installation and Wiring
Two-wire DC output
Sensor
Power
Supply
NPN current output
+
Current
Output
regulator
Sensor
7 mA
Power
0 V
Supply
PNP current output
Sensor
+
Power
Supply
Output
7 mA
0 V
IN
DC Input Unit
+
COM
DC Input Unit
IN
+
COM
DC Input Unit
IN
COM
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