Mitsubishi Electric Q66DA-G, User Manual

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[Wiring Precautions]
[Startup and Maintenance Precautions]
[Startup and Maintenance Precautions]
CAUTION
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.
WARNING
Do not touch any terminal while power is on.
Doing so will cause electric shock or malfunction.
Shut off the external power supply (all phases) used in the system before cleaning the module or
retightening the terminal screws, connector screws, or module fixing screws.
Failure to do so may result in electric shock or cause the module to fail or malfunction.
Undertightening can cause drop of the screw, short circuit or malfunction.
Overtightening can damage the screw and/or module, resulting in drop, short circuit, or malfunction.
CAUTION
Do not disassemble or modify the modules.
Doing so may cause failure, malfunction, injury, or a fire.
Shut off the external power supply (all phases) used in the system before mounting or removing the
module.
Failure to do so may cause the module to fail or malfunction.
A module can be replaced online (while power is on) on any MELSECNET/H remote I/O station or in
the system where a CPU module supporting the online module change function is used.
Note that there are restrictions on the modules that can be replaced online, and each module has its
predetermined replacement procedure.
For details, refer to the relevant chapter in this manual.
After the first use of the product, do not mount/remove the module to/from the base unit more than
50 times (IEC 61131-2 compliant).
Exceeding the limit of 50 times may cause malfunction.
Before handling the module, touch a grounded metal object to discharge the static electricity from
the human body.
Failure to do so may cause the module to fail or malfunction.