Fuji G11 inverter repair
Model: Fuji G11-7.5KW FRN
Failure phenomenon: display in operation "OL1"
Fault analysis: OL failure overload alarm, according to the fault V phase current fluctuation of large motor loading test current detection, it was found that the V phase has a significant imbalance of three-phase drive detected by oscilloscope, measuring driving voltage of V phase is normal, replace the V phase driver after the test waveform is often. With load test 3 phase output current is normal. After the customer is now running normally.
Jia Hong Wei repair service hotline: 0755-28916839, 13640994287 Shaw