Inverter repair
Model: VF100
Fault: after a while, show "OL" fault.
Fault analysis: overload is also one of the frequent failure to beat frequency, usually see overload we should first analyze whether motor overload or inverter itself in general motors due to overload, overload ability, as long as the parameters of the motor inverter parameter table is set up properly, generally do not appear motor overload. The inverter itself due to overload ability it is prone to overload alarm. By measuring the converter output voltage is normal, in the power load for 10 minutes or so low frequency converter current mutation phenomenon. Body shell relatively hot. Preliminary judgment as the driving circuit fault causes the output imbalance is generally shown as motor jitter, speed is not stable. Which causes the frequency converter to heat. Long time work will be unstable, the emergence of "OL" alarm failure.
Repair: the replacement of power driving circuit of capacitor and driver long time power failure to lift.
Jia Hong Wei repair service hotline: 0755-28916839, 13640994287 Shaw