8. Inspection and Replacement
8-2
3) Megger test
① For Exterior main circuit, remove all cables from inverter terminals to ensure that test voltage is not applied
to the inverter.
② Use DC 500V meggar and isolate the main power before starting measurement. If the test voltage is
connected to the control circuit, remove all connection cables to the control circuit.
③ Perform the Meggar test only between the common cables connected to the main circuit and ground.
8.3 Parts replacement
Part name Period Comments
Cooling fan 2 years Exchange for a new part after consulting LS A/S center.
Electrolytic capacitor
on the PCB board
3 years Exchange for a new part after consulting LS A/S center.
Relay on the PCB
board
- Exchange for a new part after consulting LS A/S center.
DC Resistor - Exchange for a new part after consulting LS A/S center.
z The life expectancy of a part depends on the type of part, the environment, and operating conditions.
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