Mitsubishi Electric MELSEC-Q Series User Manual page 5

[Wiring Precautions]
 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.
 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 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.
 Individually ground the FG terminal and shielded cables of the programmable controller with a
ground resistance of 100 or less.
Failure to do so may result in electric shock or malfunction.
 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.
 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.
 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.
A - 3
CAUTION
!
A - 3