4-4SectionI/O Connections
42
DC Input Units
COM
Contact
output
IN
DC input
When using the configuration shown below, the sensor and Input Unit should
receive their power from the same supply.
+
COM
NPN
current output
IN
DC input
0 V
Output
7 mA
Sensor
Power
Supply
Current
regulator
+
COM
NPN open-collector output
Sensor
Power
Supply
IN
DC input
0 V
Output
7 mA
+
COM
PNP current output
Sensor
Power
Supply
IN
AC/DC input
0 V
Output
7 mA
0 V
The circuit below should be used for I/O devices having a voltage output.
0
V
Output
+
COM
V
oltage output
Sensor
Power
Supply
IN
DC input
The
circuit below should
NOT
be used
for I/O devices having a voltage output.
0
V
Output
+
COM
V
oltage output
IN
DC input
Sensor
Power
Supply
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