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MELSEC-Q
10 MAINTENANCE AND INSPECTION
10 MAINTENANCE AND INSPECTION
!
DANGER
Do not touch the terminals while power is on.
Doing so could cause shock.
Correctly connect the battery. Also, do not charge, disassemble,
heat, place in fire, short circuit, or solder the battery.
Mishandling of a battery can cause overheating or cracks which
could result in injury and fires.
Turn the power off when cleaning the module or tightening the
terminal screws or module mounting screws.
Conducting these operations when the power is on could result in
electric shock.
Loose terminal screws may cause short circuits or malfunctions.
Failure to mount the module properly will result in short circuit,
malfunction or in the module falling.
!
CAUTION
In order to ensure safe operation, read the manual carefully to
acquaint yourself with procedures for program change, forced
outputs, RUN, STOP, and PAUSE operations, etc., while operation
is in progress.
Operation mistakes could cause damage to the equipment and
other problems.
Never try to disassemble of modify module. It may cause product
failure, malfunction, fire or cause injury.
When using any radio communication device such as a cellular
phone or a PHS phone, keep them away from the controller at least
25 cm (9.85 inch) or it may cause a malfunction.
Turn the power off when installing or removing the modules.
Trying to install or remove the module while the power is on could
damage the module or result in erroneous operation.
In order that you can use the PLC in normal and optimal condition at all times, this
section describes those items that must be maintained or inspected daily or at regular
intervals.
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