4 INSTALLATION, WIRING AND MAINTENANCE OF THE PRODUCT

4.5 Maintenance

4.5.1 Precautions for maintenance

MELSEC-Q

The precautions for servicing the QD75 are given below. Refer to this section as well as "4.1.3 Handling precautions" when carrying out the work.

!DANGER

Always turn all phases of the power supply OFF externally before cleaning or tightening the screws.

Failure to turn all phases OFF could lead to electric shocks.

CAUTION

Never disassemble or modify the module.

Failure to observe this could lead to trouble, malfunctioning, injuries or fires.

Completely turn off the externally supplied power used in the system before installing or removing the module.

Failure to turn all phases OFF could lead to module trouble or malfunctioning.

4.5.2 Disposal instructions

CAUTION

When disposing of the product, handle it as industrial waste.

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Mitsubishi Electronics QD75D, QD75P user manual Maintenance Precautions for maintenance, Disposal instructions