vi
Maintenance and inspection, and parts replacement
• Turn the power off and wait for at least five minutes before starting inspection. Further,
check that the LED monitor is unlit, and check the DC link bus voltage between the P (+)
and N (-) terminals to be lower than 25 VDC.
Otherwise, electric shock could occur.
• Be sure to carry out daily and periodic inspections given in the instruction manual. Run-
ning the inverter without inspections for a long time could result in an inverter failure,
breakage, accident or fire.
• Recommended periodic inspection interval is once to twice a year; however, shorten the
inspection interval depending upon the running conditions.
• It is recommended that periodical replacement parts be replaced according to the stand-
ard replacement intervals given in the instruction manual. Running the inverter without
replacement for a long time could result in an inverter failure, breakage, accident or fire.
• The contact output [30A/B/C] uses a relay which could stick to ON, OFF or ambiguous
state if the service life has expired. For safety, provide an external protection function.
Fire or an accident could occur.
• Maintenance, inspection, and parts replacement should be made only by qualified per-
sons.
• Take off the watch, rings and other metallic matter before starting work.
• Use insulated tools.
Otherwise, electric shock or injuries could occur.
Disposal
• Handle the inverter as an industrial waste when disposing of it.
Otherwise injuries could occur.
Others
• Never attempt to modify the inverter.
Doing so could cause electric shock or injuries.
GENERAL PRECAUTIONS
Drawings in this manual may be illustrated without covers or safety shields for explanation of
detail parts. Restore the covers and shields in the original state and observe the description in
the manual before starting operation.
