Device External Fault

What does 51 mean?

A user-specified digital input signal (configured with parameter P3.5.1.11 or P3.5.1.12) was activated, triggering an external fault. This indicates an issue with an external device or its signaling to the drive, which is configured to stop the drive upon activation.

Complete Troubleshooting Guide

1. 1

   Check the digital input signals configured for external fault activation.

2. 2

   Review the system schematics to understand the external fault logic and identify the triggering source.

3. 3

   Address the root cause of the external device's fault condition.