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Mitsubishi QS03NB-U-HW Manuallines page 7

Safety programmable controller

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[Startup and Maintenance precautions]
DANGER
Do not touch the terminals while power is on.
Doing so could result in electric shock.
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, cracks, or ignition which could
result in injury and fires.
Turn off all phases of the external supply power used in the system when
cleaning the module or retightening the terminal block mounting screws,
terminal screws, or module mounting screws.
Not doing so could result in electric shock.Tighten a terminal block mounting
screw, terminal screw, and module mounting screw within the specified torque
range.
If the terminal block mounting screw or terminal screw is too loose, it may
cause a short circuit, fire, or malfunctions.
If too tight, it may damage the screw and/or the module, resulting in a drop of
the screw or module, a short circuit or malfunctions.
If the module mounting screw is too loose, it may cause a drop of the screw or
module.
Over tightening the screw may cause a drop due to the damage of the screw
or module.
A-6

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