101

PwrDn NVS Blank

Allen-Bradley · PowerFlex 750 AC Drive

What does 101 mean?

This fault indicates an internal data error within the non-volatile storage (NVS), often occurring after a flash update attempting to correct a Fault 117. This suggests a corruption issue within the drive's internal memory. The drive's internal data is compromised, potentially leading to unstable operation or incorrect parameter handling if unresolved.

Complete Troubleshooting Guide

  1. 1

    Reset parameter defaults. Refer to publication 20HIM-UM001 for detailed instructions.

  2. 2

    Reload drive parameters from a backup or re-enter them manually.

  3. 3

    If the problem persists after resetting and reloading, replace the main control board.