Mitsubishi Electric CC-Link IE TSN User Manual page 5

[Wiring Precautions]
WARNING
● Shut off the external power supply (all phases) used in the system before wiring. Failure to do so may
result in electric shock or cause the module to fail or malfunction.
[Wiring Precautions]
CAUTION
● Individually ground the FG terminal of the programmable controller with a ground resistance of 100?
or less. Failure to do so may result in electric shock or malfunction.
● Check the rated voltage and terminal layout before wiring to the module, and connect the cables
correctly. Connecting a power supply with a different voltage rating or incorrect wiring may cause a fire
or failure.
● Prevent foreign matter such as dust or wire chips from entering the module. Such foreign matter can
cause a fire, failure, or malfunction.
● Place the cables in a duct or clamp them. If not, dangling cables may swing or inadvertently be pulled,
resulting in malfunction or damage to modules or cables. In addition, the weight of the cables may put
stress on modules in an environment of strong vibrations and shocks.
● Do not install the communication cables together with the main circuit lines or power cables. Keep a
distance of 100mm or more between them. Failure to do so may result in malfunction due to noise.
● When disconnecting the cable from the module, do not pull the cable by the cable part. For the cable
with connector, hold the connector part of the cable. For the cable connected to the terminal block,
loosen the terminal screw. Pulling the cable connected to the module may result in malfunction or
damage to the module or cable.
● When an overcurrent caused by an error of an external device or a failure of the programmable
controller flows for a long time, it may cause smoke and fire. To prevent this, configure an external
safety circuit, such as a fuse.
● Mitsubishi Electric programmable controllers must be installed in control panels. Wiring and
replacement of a module must be performed by qualified maintenance personnel with knowledge of
protection against electric shock. For wiring, refer to "INSTALLATION AND WIRING" in the user's
manual.
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