Phase W to Gnd

What does F40 mean?

An electrical short circuit has been detected between the drive's output phase W and ground. This could be due to insulation breakdown in the motor winding or the cable connecting the drive to the motor, posing a risk of electrical shock and further equipment damage if not resolved.

Additional Steps

Steps 1–2 are listed in Priority Fix.

1. 3

   If wiring and motor check out, the fault may be internal to the drive; consider replacing the drive if the fault persists.