External fault

What does 51 mean?

A digital input configured as an external fault has been triggered, indicating a fault condition in an external device connected to the drive. This causes the drive to trip, preventing further operation until the external fault is cleared. The specific external device must be identified and resolved.

Additional Steps

Steps 1–2 are listed in Priority Fix.

1. 3

   Ensure the digital input signal is reset before attempting to restart the drive.