Mitsubishi MELSEC-Q Series User Manual page 5

[Wiring Precautions]
• When disconnecting a communication cable or power cable from the module, do not hold and
pull the cable portion by hand.
For the cable with a connector, hold the connector connected to the module with a hand and pull
it out.
For the cable connected to a terminal block, loosen the screws on the terminal block and
disconnect the cable.
Pulling the cable with it connected to the module may result in malfunctions or damage to the
module and/or cables.
[Precautions on Activation/Maintenance]
• Do not disassemble or modify the module.
Doing so may cause a fault, malfunction, injury or fire.
• Be sure to shut off all phases of the external power supply used by the system before mounting
or dismounting the module.
Failure to do so may cause a fault or malfunction of the module.
• Do not touch any terminal while the power is on. Doing so may cause malfunctions.
• Be sure to shut off all phases of the external power supply used by the system before cleaning
the module or retightening the terminal screws or module installation screws.
Failure to do so may cause a fault or malfunction of the module.
Loose tightening may cause a drop of the module, a short circuit or malfunctions.
Excessive tightening may cause the same as the above due to damage to the screws or the
module.
• Do not mount/remove the module to/from the base unit or terminal block more than 50 times
(IEC 61131-2 compliant), after the first use of the product.
Failure to do so may cause module malfunctions.
• Before handling the module, always touch grounded metal, etc. to discharge static electricity
from the human body.
Failure to do so can cause the module to fail or malfunction.
[Precautions on Disposal]
• When disposing of this product, treat it as industrial waste.
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