Wiring And Connections; General Precautions For Wiring - Omron CPM1A Operation Manual

Wiring and Connections

3-4

Wiring and Connections

3-4-1 General Precautions for Wiring

! Caution
I/O Line Noise
50
This section provides basic information on wiring the Power Supply Unit and
Expansion I/O Units, and on connecting Peripheral Devices.
With pre-V1 Units, attach the dustproof label provided before wiring. With V1
Units, leave the dustproof label in place while wiring. If scraps of wire get inside
the Unit, malfunction will result. After completing wiring be sure to remove the
label to avoid overheating.
Dustproof label
Do not run CPM1A 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.
CPM1A I/O lines
Control cables and
CPM1A power lines
Power cables
Section 3-4
300 mm min.
300 mm min.