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

4 SETUP AND PROCEDURES BEFORE OPERATION

4.4 Wiring

4.4.1 Wiring precautions

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The wiring precautions and examples of module connection are provided below.
In order to optimize the functions of the Q62DA-FG and ensure system reliability,
external wiring that is protected from noise is required.
Please observe the following precautions for external wiring:
(1) Use separate cables for the alternating-current control circuit and the external
output signals and external supply power of the Q62DA-FG in order to avoid AC
surges and induction effects.
(2) Do not mount the cables close to or bundle them with the main circuit line, a
high-voltage cable or a load cable from other than the programmable controller.
This may increase the effects of noise, surges and induction.
(3) Perform a one-point grounding for shielded lines and the shields of sealed
cables.
(4) A solderless terminal with insulating sleeve cannot be used for the terminal
block. Covering the cable- connection portion of the solderless terminal with a
marked tube or an insulation tube is recommended.
MELSEC-Q
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