Drive: Power unit EEPROM without rated data

What does F07810 mean?

No rated data is stored in the power unit's EEPROM, which is essential for the drive to operate correctly. This can indicate a faulty EEPROM, an uninitialized power unit, or a replacement unit that has not been properly configured. Without this data, the drive cannot determine its nominal operating characteristics.

• A replacement power unit was installed without a prior backup and restore of critical drive parameters (e.g., P0810 (Power unit rated power), P0811 (Power unit rated current)).
• Internal EEPROM data corruption or failure within the drive's power unit hardware.
• The drive's power unit (e.g., PM240) was replaced without transferring its data from the original unit's Control Unit.
• A firmware update process was interrupted or failed, leading to incomplete data writing to the EEPROM.

Click steps to track your progress.

1. 1

   1. Perform a full parameter reset (P0010 = 30, P0970 = 1) followed by re-entering all motor and application parameters.

2. 2

   2. If available, restore parameters from a previously saved backup file (e.g., via STARTER or TIA Portal software).

3. 3

   3. Ensure the Control Unit (e.g., CU240E) is correctly mounted and securely connected to the power module.

4. 4

   4. Attempt a firmware update of the drive, ensuring a stable power supply and proper procedure is followed.

5. 5

   5. If the fault persists after parameter restore and firmware update, replace the drive's power unit (e.g., PM240).