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MELSEC-Q
4 INSTALLATION, WIRING AND MAINTENANCE OF THE PRODUCT
4.5 Maintenance
4.5.1 Precautions for maintenance
The precautions for servicing the QD75MH are given below. Refer to this section as
well as "4.1.3 Handling precautions" when carrying out the work.
!
DANGER
Completely turn off the externally supplied power used in the system before clearing or
tightening screws.
Not doing so may cause 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.
Not doing so may cause an operation failure or damage to the module.
4.5.2 Disposal instructions
When you discard QD75MH, servo amplifier, a battery (primary battery) and other
option articles, please follow the law of each country (area).
!
CAUTION
This product is not designed or manufactured to be used in equipment or systems in situations
that can affect or endanger human life.
When considering this product for operation in special applications such as machinery or
systems used in passenger transportation, medical, aerospace, atomic power, electric power,
or submarine repeating applications, please contact your nearest Mitsubishi sales
representative.
Although this product was manufactured under conditions of strict quality control, you are
strongly advised to install safety devices to forestall serious accidents when it is used in facilities
where a breakdown in the product is likely to cause a serious accident.