F100

Parameter Checksum

Allen-Bradley · PowerFlex 4 Adjustable Frequency

What does F100 mean?

A checksum error has occurred within the drive's parameter memory, indicating potential corruption or inconsistency in the stored parameter values. This can lead to unpredictable drive behavior.

Common Causes

  • Internal parameter data corruption detected.
  • EEPROM read/write error.
  • Firmware integrity check failed.
  • Parameter backup/restore operation incomplete.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Restore all drive parameters to factory defaults, which can often be initiated via a menu option or by setting parameter A100 [Fault Clear] to option 2 ('Clear Buffer').

  2. 2

    After restoring defaults, carefully reprogram all necessary application-specific parameters, ensuring all settings are correct.

Browse all codes in this manual (24)
Verified technical data. Last updated: March 2026

Related Faults

Source: Allen-Bradley PowerFlex 4 Adjustable Frequency