33

AuRsts Exhausted

Allen-Bradley · PowerFlex 750 AC Drive

What does 33 mean?

The drive has repeatedly attempted to automatically reset a fault and resume operation but has failed to clear the underlying condition within the programmed number of tries (P348 [Auto Rstrt Tries]). This indicates a persistent problem that the drive cannot self-correct, leaving it in a stopped state. Manual intervention is required to diagnose and fix the root cause of the original fault.

Complete Troubleshooting Guide

  1. 1

    Identify and thoroughly resolve the original fault that initially triggered the auto-restart attempts.

  2. 2

    Manually clear all faults after addressing the root cause problem.

  3. 3

    Review and consider adjusting P348 [Auto Rstrt Tries] for diagnostic purposes, but ensure the underlying issue is fixed rather than just increasing retries.