70
I/O Unit Covers
A C200H-COV11 Cover is provided as an I/O Unit cover for Units that use 10P
terminal block connectors. After the I/O wiring has been completed, slide the
cover up from the bottom, as shown in the illustration below. These Covers
should be applied whenever the extra protection is required.
Attach
Remove
I/O Unit cover
Input Devices
Observe the following information when selecting or connecting input devices.
DC Input Units
The following types of DC input devices can be connected.
+
COM
NPN current output
IN
DC Input Unit
0 V
Output
7 mA
Sensor
Power
Supply
Current
regulator
+
COM
NPN open-collector output
Sensor
Power
Supply
IN
DC Input Unit
0 V
Output
7 mA
+
COM
PNP current output
Sensor
Power
Supply
IN
AC/DC Input Unit
0 V
Output
7 mA
COM
Contact output
IN
DC Input Unit
Wiring
Section 3-2
