Wiring; Wiring Precautions - Mitsubishi Electric MELSEC-Q series User Manual

7.4

Wiring

This section describes the wiring precautions and module connection examples of a CT input module.
7.4.1

Wiring precautions

External wiring that is less likely to be affected by noise is one of the conditions for a highly reliable system that fully
utilizes the CT input module.
This section describes the precautions on external wiring.
• Use separate cables for the AC control circuit and the CT input module's external I/O signals to avoid
influence of AC side surges and induction.
• Do not locate external wires near the main circuit line, high-voltage circuit lines, and load circuit lines of
devices other than programmable controllers. Also, do not bunch external wires with these lines. Otherwise,
the external wires are more likely to be affected by noise, surges, and induction.
• Ground shielded cables at one end.
• A solderless terminal with an insulation sleeve cannot be used on the terminal block. It is recommended to
put a mark tube or an insulation tube on the wire connection part of a solderless terminal.
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