Parameter Checksum

What does F100 mean?

An inconsistency has been detected in the drive's parameter memory; the calculated checksum of stored parameters does not match the expected value. This suggests potential data corruption in the non-volatile memory (EEPROM), which could lead to erratic drive behavior due to incorrect parameter settings.

• Internal memory (EEPROM/flash) corruption due to voltage transients or electromagnetic interference (EMI).
• Firmware update process was interrupted or failed, leaving parameters in an inconsistent state.
• Loss of backup power (e.g., supercapacitor or battery) during a parameter save operation.
• Drive control board hardware fault affecting the integrity of parameter storage.
• Corrupted parameter set uploaded from external programming software.

Click steps to track your progress.

1. 1

   Attempt to re-upload a known good parameter backup file using the drive's programming software via the communication port (e.g., RS485).

2. 2

   Perform a factory reset of the drive parameters (e.g., setting parameter P0-01 to 2 or similar command).

3. 3

   Manually re-enter critical motor and application parameters (e.g., P2-01 (Motor rated power), P2-02 (Motor rated voltage)).

4. 4

   Monitor the incoming AC supply voltage (L1, L2, L3) for stability and transient spikes.

5. 5

   Backup all drive parameters using the programming software after successfully restoring operation.