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ErrorLib — Industrial Fault Code Library

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CFF

Invalid Configuration on Power-Up

Schneider Electric · Altistart 22 Soft Starter

What does CFF mean?

The soft starter detected an invalid or corrupted configuration during its power-up sequence. This prevents proper initialization and operation, as the device cannot load a valid set of parameters.

Common Causes

  • Corrupted firmware or parameter memory due to power fluctuations (e.g., brownout, surge) during a write operation.
  • Incompatible parameter file loaded from an external source (e.g., PC software, HMI) designed for a different model or firmware version.
  • Internal non-volatile memory (e.g., EEPROM, flash) degradation or a hardware fault on the control board.
  • Firmware update process was interrupted or failed, leading to an incomplete or corrupted operating system image.
  • Incorrect parameter backup/restore procedure (e.g., attempting to restore a corrupt file via P8-01).

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    1. Perform a factory reset via the soft starter keypad (e.g., setting P0-01 to 'Reset') and then re-enter essential motor parameters (e.g., P1-01, P1-02).

  2. 2

    2. Attempt to upload a known-good parameter file from a reliable backup source (e.g., SD card, PC) using the soft starter's communication port (e.g., RS-485).

  3. 3

    3. Cycle power to the soft starter; allow 30 seconds for full discharge before reapplying power to initiate a complete cold boot.

  4. 4

    4. Verify the soft starter's firmware version (e.g., displayed at power-up or via P9-01) against the expected version for the application.

  5. 5

    5. If available, connect to the soft starter via diagnostic software (e.g., manufacturer's tool) to inspect configuration memory and attempt a firmware re-flash.

Browse all codes in this manual (32)
Verified technical data. Last updated: April 2026

Related Faults

1Modbus Function Not Recognized2Invalid Modbus Address3Invalid Modbus Value
Source: Schneider Electric Altistart 22 Soft Starter
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