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Topic starter
26/08/2017 3:08 am
Hi there. I am getting this error F52 Converter phase imbal on Otis OVF30. I checked input AC line voltage and current and it seems ok. What else could cause this error?
26/08/2017 4:17 pm
Have you tested the isolated motor phase resistances and insulation resistance?
Topic starter
04/09/2017 4:09 pm
I have tested the isolated motor phase resistances and insulation resistance and it is ok. What else could it be?
Topic starter
04/09/2017 7:10 pm
This error appears regardles if elevator is moving or it is standing still. After a few minutes when elevator receive call, OVF30 reset error and starts running. Then again after some time error appears and so on.
04/09/2017 11:01 pm
I am not an expert on these drives or anything but... Our tech support is pretty quick to say send in the drive when we start to get those faults. I don't know what fails on them but they come back working.
Topic starter
06/09/2017 3:17 am
Indirtwetrust, you were right. It was problem in UD2 driver board. Once I replace it drive OVF30 start to operate normal. There are no more drive errors.