F100

Parameter Chksum

Allen-Bradley · PowerFlex 520-series Adjustable Frequency AC Drive

What does F100 mean?

The non-volatile memory storing the drive's parameters has detected a checksum error, indicating data corruption. This means the drive's saved configuration settings are invalid or unreadable, potentially preventing proper startup or operation. A factory reset is typically required to restore integrity.

Complete Troubleshooting Guide

  1. 1

    Set parameter P053 [Reset To Defalts] to '2' ('Factory Rset') to restore all drive parameters to their factory default values.

  2. 2

    After the reset, meticulously reprogram all necessary drive parameters according to the application's requirements.

  3. 3

    Regularly back up drive parameters if configuration changes frequently, to facilitate quick recovery.