Howdy,
I was called onsite this afternoon to take a look at a Lenze SMV drive with a braking unit and resistor. Whoever had installed the braking unit before had not done it right and I had to straighten out the wiring. Also this installer had not programmed the correct parameters in the drive.
So i straightened the wiring and settings out to make it work like it was supposed to, but I had a problem with it faulting out right when we would shut the motor off. It would throw a F.OF1 code, which is for output ground fault. The motor would run just fine until we hit the stop button, it would immediately trip out with this code. I turned the DC braking voltage to 0 , and it still faulted out. The only way I could keep it from faulting is to set it to decel rather than brake to stop.
Any suggestions why it came up with this code during braking, but not during running?
I was called onsite this afternoon to take a look at a Lenze SMV drive with a braking unit and resistor. Whoever had installed the braking unit before had not done it right and I had to straighten out the wiring. Also this installer had not programmed the correct parameters in the drive.
So i straightened the wiring and settings out to make it work like it was supposed to, but I had a problem with it faulting out right when we would shut the motor off. It would throw a F.OF1 code, which is for output ground fault. The motor would run just fine until we hit the stop button, it would immediately trip out with this code. I turned the DC braking voltage to 0 , and it still faulted out. The only way I could keep it from faulting is to set it to decel rather than brake to stop.
Any suggestions why it came up with this code during braking, but not during running?