Mitsubishi Electric MELSEC-Q Series User Manual page 5

[Wiring Precautions]
● Shut off the external power supply (all phases) used in the system before installation and wiring.
Failure to do so may result in electric shock or damage to the product.
● After wiring, attach the included terminal cover to the module before turning it on for operation. Failure
to do so may result in electric shock.
[Wiring Precautions]
● Use applicable solderless terminals and tighten them within the specified torque range. If any spade
solderless terminal is used, it may be disconnected when the terminal screw comes loose, resulting in
failure.
● Tighten the terminal screws within the specified torque range. Undertightening can cause short circuit,
fire, or malfunction. Overtightening can damage the screw and/or module, resulting in drop, short
circuit, or malfunction.
● Do not install the control lines or communication cables together with the main circuit lines or power
cables. Failure to do so may result in malfunction due to noise.
● Prevent foreign matter such as dust or wire chips from entering the module. Such foreign matter can
cause a fire, failure, or malfunction.
● A protective film is attached to the top of the module to prevent foreign matter, such as wire chips,
from entering the module during wiring. Do not remove the film during wiring. Remove it for heat
dissipation before system operation.
● Use CC-Link dedicated cables for a CC-Link system. If not, the performance of the CC-Link system is
not guaranteed. For the maximum station-to-station distance and the overall cable distance, follow the
specifications in Page 29, Section 3.2.2 to Page 30, Section 3.2.3. If not, normal data transmission is
not guaranteed.
● Place the cables in a duct or clamp them. If not, dangling cable may swing or inadvertently be pulled,
resulting in damage to the module or cables or malfunction due to poor contact.
● 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.
WARNING
CAUTION
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