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Section 9
Maintenance
CAUTION:
Never conduct a meggar test on control circuit! Damage will result to
inverter.
Inverter requires almost no routine checks. It will function efficiently and its normal operation
lifetime will be longer if if is kept clean, cool and dry.
Especially check for tightness of electrical connections, discoloration or other signs of overheating.
During service inspection, turn off AC main circuit power and wait for charging indicator LED 101
to extinguish (or at least 10 minutes) before touching any circuit components. Failure to adhere to
this warning could result in serious or lethal injuries.
(1)
Clean up internal dust and dirt
(2)
Check for tightness of electrical connection.
(3)
Perform meggar test
(a)
Remove all connection wires from the complete unit when doing meggar test.
(b)
Meggar test can be applied on main circuit.
CAUTION:
Never do meggar test on
control circuit.The insulation resistance of DC500V tester should be more than
5M ohm.
DANGER!
Hazardous voltage within can cause serious injury or death. Operating drive from keypad may disable
safety circuits and result in danger or injury. Only qualified personnel should work on this equipment
after familiarization with its operation. Turn OFF and lock out power at main panel. Allow capacitors to
bleed off prior to servicing.
CAUTION:
Remove control circuit PC board.
