What can cause the ATV32 drive to trip on an SCF (short circuit fault) when the DB resistor is connected?
With a brake resistor installed the motor will not run and its tripped on SCF. Product line:
All range/ All serial number Cause:
The VFD has shorted on motor short circuit because the brake resistor is connected to the VFD. Resolution:
Verify the brake resistor is not below the minimum ohmic value to the VFD. The minimum ohmic value can be found in the ATV32 catalog. If the resistor is below the minimum ohmic value the drive will see that as a short between the brake terminal PB and PBe.