Mitsubishi Electric M70V Series Connection Manual page 12

(6) Maintenance, inspection and part replacement
Periodically back up the programs, tool data and parameters to avoid potential data loss. Also, back up
those data before maintenance and inspections.
When replacing the battery on the controller side, the machining programs, tool data and parameters
should be backed up with the input/output device beforehand. In case the memory is damaged in replacing
the batteries, reload all the data backed up before replacing the battery.
The electrolytic capacitor' s capacity will drop due to deterioration. To prevent secondary damage due to
capacitor's faults, Mitsubishi recommends the electrolytic capacitor to be replaced approx. every five
years even when used in a normal environment. Contact the Service Center or Service Station for
replacements.
Do not perform a megger test (insulation resistance measurement) during inspection.
Do not replace parts or devices while the power is ON.
Do not short-circuit, charge, overheat, incinerate or disassemble the battery.
There may be a unit filled with substitute Freon in the heat radiating fins of the 37kW or smaller unit. Be
careful not to break the heat radiating fins during maintenance or replacement.
(7) Disposal
Take the batteries and backlights for LCD, etc., off from the controller, drive unit and motor, and dispose
of them as general industrial wastes.
Do not alter or disassemble controller, drive unit, or motor.
Collect and dispose of the spent batteries and the backlights for LCD according to the local laws.
(8) General precautions
To explain the details, drawings given in the instruction manual, etc., may show the unit with the cover or safety
partition removed. When operating the product, always place the cover or partitions back to their original position,
and operate as indicated in the instruction manual, etc.
CAUTION
CAUTION