Input line supervision

What does 10 mean?

The drive has detected a missing phase in the incoming AC supply voltage. This typically indicates a power supply issue, such as a blown input fuse, a tripped circuit breaker, or a disconnected supply cable. Operating the drive with a missing input phase can lead to internal damage, particularly to the input rectifier bridge.

Additional Steps

Steps 1–2 are listed in Priority Fix.

1. 3

   Examine the supply cables and connections for looseness, damage, or disconnections.