!
53
3. Replace the cover on the CPU Unit’s or the Expansion I/O Unit’s expansion
connector.
3-4
Wiring and Connections
This section provides basic information on wiring the Power Supply Unit, Expan-
sion Units, and Expansion I/O Units, and on connecting Programming Devices.
3-4-1 General Precautions for Wiring
Caution
Leave the protective label in place while wiring. The Unit may malfunction if
strands of wire get inside the Unit. After completing wiring be sure to remove the
label to avoid overheating.
Protective label
I/O Line Noise
Do not run CPM2A I/O lines in the same duct or conduit as power lines.
Hanging Ducts
Leave at least 300 mm between the power cables and the I/O or control wiring,
as shown in the following diagram.
CPM2A I/O lines
Control cables and
CPM2A power lines
Power cables
300 mm min.
300 mm min.
Wiring and Connections
Section 3-4
