
A - 5
[STARTUP AND MAINTENANCE PRECAUTIONS]
!
DANGER
Do not touch the terminals while power is on.
Doing so could cause shock or erroneous operation.
Correctly connect the battery.
Also, do not charge, disassemble, heat, place in fire, short circuit, or solder the battery.
Mishandling of battery can cause overheating or cracks which could result in injury and fires.
Switch all phases of the external power supply off when cleaning the module or retightening the
terminal or module mounting screws. Not doing so could result in electric shock.
Undertightening of terminal screws can cause a short circuit or malfunction. Overtightening of
screws can cause damages to the screws and/or the module, resulting in fallout, short circuits,
or malfunction.
!
DANGER
The online operations conducted for the CPU module being operated, connecting the peripheral
device (especially, when changing data or operation status), shall be conducted after the
manual has been carefully read and a sufficient check of safety has been conducted.
Operation mistakes could cause damage or problems with of the module.
Do not disassemble or modify the modules.
Doing so could cause trouble, erroneous operation, injury, or fire.
Use any radio communication device such as a cellular phone or a PHS phone more than
25cm (9.85 inch) away from the PLC.
Not doing so can cause a malfunction.
Switch all phases of the external power supply off before mounting or removing the module.
If you do not switch off the external power supply, it will cause failure or malfunction of the
module.
Do not drop or give an impact to the battery installed in the module.
Otherwise the battery will be broken, possibly causing internal leakage of electrolyte.
Do not use but dispose of the battery if it has fallen or an impact is given to it.
Always make sure to touch the grounded metal to discharge the electricity charged in the
electricity charged in the body, etc., before touching the module.
Failure to do say cause a failure or malfunctions of the module.
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