Cause : EEPROM parameter error comes when the data contained in the parameter storage area of the EEPROM is broken, so erroneous data is retrieved.

"alarm 36" in panasonic servo drive indicate "EEPROM parameter error". This means a problem with the EEPROM (Electrically Erasable Programmable Read-Only Memory) where the drive stores its parameters. This error suggests that the drive is encountering issues reading or writing parameters stored in the EEPROM, which can affect the drive's operation and configuration.

Troubleshooting Steps:

1. Power Cycle the Drive:

• Reboot the Drive: Sometimes, a simple power cycle (turning the drive off and then back on) can resolve temporary issues with the EEPROM.

2. Check EEPROM Integrity:

• Visual Inspection: If possible, inspect the EEPROM chip on the drive for any visible damage or signs of wear.
• Re-seat EEPROM: If the EEPROM is removable, ensure it is properly seated in its socket. For non-removable EEPROM, this step is not applicable.

3. Verify Parameter Settings:

• Parameter Review: Check the parameters stored in the drive to ensure they are correct and have not been corrupted. Compare with the saved configuration or default settings if necessary.
• Parameter Reset: If feasible, reset the parameters to their default values and then reconfigure them. This can help if the stored parameters are corrupt.

4. Update or Reinstall Firmware:

• Firmware Update: Check if there are any firmware updates available for the servo drive. Updating the firmware can sometimes resolve EEPROM-related errors.
• Reinstall Firmware: If the firmware is already up to date, consider reinstalling it to ensure that no corruption occurred during the update process.

5. Check for Electrical Issues:

• Power Supply: Ensure that the power supply to the servo drive is stable and within the specified voltage range. Power fluctuations can sometimes cause EEPROM errors.
• Electrical Noise: Minimize electrical noise or interference that might affect the drive’s internal electronics.