Ground short-circuit

What does F019 mean?

This ATV310 fault indicates a ground fault condition detected in the system, typically at the drive output or within the motor/cabling. This poses a safety risk and can lead to equipment damage if not promptly addressed.

• Short-circuit or grounding at the drive output terminals or within the motor windings
• Ground fault occurring while the drive is in run state
• Significant current leakage to ground, especially when several motors are connected in parallel to one drive

Click steps to track your progress.

1. 1

   Disconnect the motor from the drive and verify the cables connecting the drive to the motor for short circuits (phase-to-phase or phase-to-ground).

2. 2

   Test the motor insulation resistance using a megohmmeter (megger) to check for ground faults or inter-phase shorts.

3. 3

   Adjust the switching frequency (parameter 315) to a lower value if transients are suspected to be contributing to the fault.

4. 4

   Connect chokes in series with the motor if high current leakage to ground is observed or multiple motors are driven by the same VFD.