Mitsubishi Electric MELCEC Q Series User Manual page 9

[STARTUP AND MAINTENANCE PRECAUTIONS]
Before performing online operations (especially, program modification, forced output and operation
status change) for the running CPU module from the peripheral connected, read relevant manuals
carefully and ensure the safety.
Improper operation may damage machines or cause accidents.
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 Handy-phone
System) more than 25cm away in all directions from the programmable controller.
Shut off the external power supply for the system in all phases before mounting or removing the
module. Failure to do so may cause the module to fail or malfunction.
After the first use of the product, do not perform each of the following operations more than 50 times
(IEC 61131-2/JIS B 3502 compliant).
Exceeding the limit may cause malfunction.
• Mounting/removing the module to/from the base unit
• Mounting/removing the terminal block to/from the module
Do not drop or apply any shock to the battery to be installed in the module.
Doing so may damage the battery, causing the battery fluid to leak inside the battery. If the battery is
dropped or any shock is applied to it, dispose of it without using.
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.
CAUTION
A - 7