Phase VW Short

What does F43 mean?

An excessive current flow, indicative of a short circuit, has been detected between the drive's output terminals V and W. This typically signifies a phase-to-phase short in the motor windings or the cabling, which can cause severe damage to the motor or drive's output stage if not immediately addressed.

Additional Steps

Steps 1–2 are listed in Priority Fix.

1. 3

   If the motor and wiring are confirmed to be sound, the fault may lie within the drive's power section; consider drive replacement.