Mitsubishi Electric MELSEC iQ-R Series Migration Manual page 9

[Startup and Maintenance Precautions]
●
Do not touch any terminal while power is on. Doing so will cause electric shock or malfunction.
●
Correctly connect the battery connector. Do not charge, disassemble, heat, short-circuit, solder,
or throw the battery into the fire. Also, do not expose it to liquid or strong shock. Doing so may
cause the battery to generate heat, explode, ignite, or leak, resulting in injury or fire.
●
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.
[Startup and Maintenance Precautions]
●
When connecting an external device with a CPU module or intelligent function module to modify
data of a running programmable controller, configure an interlock circuit in the program to
ensure that theentire system will always operate safely. For other forms of control (such as
program modification, parameter change, forced output, or operating status change) of a
running programmable controller, read the relevant manuals carefully and ensure that the
operation is safe before proceeding. Improper operation may damage machines or cause
accidents.
●
Especially, when a remote programmable controller is controlled by an external device,
immediate action cannot be taken if a problem occurs in the programmable controller due to a
communication failure. To prevent this, configure an interlock circuit in the program, and
determine corrective actions to be taken between the external device and CPU module in case
of a communication failure.
●
Do not disassemble or modify the modules. Doing so may cause failure, malfunction, injury, or a
fire.
●
Use any radio communication device such as a cellular phone or PHS (Personal Handyphone
System) more than 25 cm away in all directions from the programmable controller. Failure to do
so may cause malfunction.
WARNING
CAUTION
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