Internal Fault: Parameter value out of limits

What does 38.783 mean?

An internal parameter's stored value has fallen outside its predefined minimum or maximum allowable range. This can be caused by data corruption, an incorrect parameter write, or a software anomaly, leading to unexpected drive behavior or shutdown.

• Data corruption in the drive's non-volatile memory storing parameter values.
• A firmware bug that attempts to write or read a parameter with an invalid value.
• Manual attempt to set a parameter value outside its predefined min/max range via LCP or fieldbus (though usually prevented).
• Faulty control board memory module or processing unit allowing invalid data states.

Click steps to track your progress.

1. 1

   1. Cycle power to the frequency converter to force a re-initialization of internal parameter registers.

2. 2

   2. Perform a parameter initialization (P14-22 set to '2') to revert all parameters to factory defaults.

3. 3

   3. Reload a known good parameter backup from a saved configuration file or a different drive.

4. 4

   4. Update the drive's firmware to the latest available version, as this can resolve known parameter handling bugs.