Mitsubishi Electric MELSEC iQ-R Series User Manual page 8

[Wiring Precautions]
CAUTION
● Tighten the terminal screws or connector screws within the specified torque range. Undertightening
can cause drop of the screw, short circuit, fire, or malfunction. Overtightening can damage the screw
and/or module, resulting in drop, short circuit, fire, or malfunction.
● Tighten the terminal block mounting screws, terminal screws, or module fixing screws within the
specified torque range. Undertightening the terminal block mounting screws or terminal screws can
cause short circuit, fire, or malfunction. Overtightening can damage the screw and/or module,
resulting in drop, short circuit, fire, or malfunction. Undertightening the module fixing screws can
cause drop of the screw Overtightening can damage the screw and/or module, resulting in drop.
● 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.
● Programmable controllers must be installed in control panels. Connect the main power supply to the
power supply module in the control panel through a relay terminal block. Wiring and replacement of a
power supply module must be performed by qualified maintenance personnel with knowledge of
protection against electric shock. For wiring, refer to the MELSEC iQ-R Module Configuration Manual.
● For Ethernet cables to be used in the system, select the ones that meet the specifications described in
MELSEC iQ-R EtherNet/IP Network Interface Module User's Manual (Startup). If not, normal data
transmission is not guaranteed.
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