77
Always inspection and maintenance is not necessary for the inverter.
For long time safety operation, periodical inspection shall be prepared to the inverter in
accordance with descriptions below. Inspection shall only performed after power supply is off
for several minutes. (since residual voltage may exist in the large capacity condensers.)
(
1
)
Remove dirty stacking inside the machine
(
2
)
Check screws securing terminals or elements are securely tightened; if not, tighten the screws