Wiring; Precautions When Wiring - Mitsubishi Electric A1S66ADA User Manual

4 PROCEDURES AND SETTINGS BEFORE OPERATION

4.5 Wiring

4.5.1 Precautions when wiring

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The following describes the precautionary items on wiring as well as wiring to the
external devices.
To obtain the maximum performance from the functions of A1S66ADA and improve
the system reliability, a wiring with the high durability against the noise is required. The
external wiring precautions described below make more improvement in the wiring not
to be affected by the noise.
(1) Use separate cables for the AC and the analog input to the A1S66ADA, in order
not to be affected by the AC side surge or conductivity.
(2) Do not bundle or place the cable close to the main circuit line, high voltage line or
load carrying wires from other than the PLC. It is influenced more easily by the
noise, surge, or conductivity.
(3) Place a one-point grounding on the PLC side for the shield line or shield cable.
However, depending on the external noise conditions, it may be better to have a
grounding externally.
MELSEC-A
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