Connecting I/O Devices; Input Devices; Dc Input Units - Omron NJ501-1 Series User Manual

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Connecting I/O Devices

Input Devices

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
Two-wire DC output
NPN open-collector output
NPN current output
Current
regulator
PNP current output
Voltage output
• The circuit below should NOT be used for I/O devices having a voltage output.
Voltage output
NJ-series CPU Unit Hardware User's Manual (W500)
IN
DC Input Unit
COM
IN
DC Input Unit
Sensor
COM
Power
Supply
Sensor
Power
Supply
IN
Output
DC Input Unit
7 mA
COM
0 V
DC Input Unit
Output
IN
Sensor
7 mA
COM
Power
0 V
Supply
Sensor
Power
DC Input Unit
Supply
IN
Output
7 mA
COM
0 V
COM
Output
IN
DC Input Unit
Sensor
0 V
Power
Supply
Sensor
Power
DC Input Unit
Supply
Output
IN
0 V
COM
4 Installation and Wiring
4
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