PU: load error ID tag

What does 0x63A2 mean?

This fault indicates that the calibration data of the power unit (PU) is either incompatible or faulty. This leads to immediate inverter disablement and motor coasting, and requires a mains power cycle to reset.

• Incompatible power unit (PU) installed in the inverter, not matching the control unit's expected ID tag or rating.
• Corruption of the power unit's internal memory where calibration data (ID tag) is stored.
• Physical damage or electronic failure of the power unit hardware (e.g., internal communication board).
• Firmware mismatch between the control unit (CU) and the power unit (PU), preventing proper communication and identification.
• Poor electrical connection between the control unit and the power unit.

Click steps to track your progress.

1. 1

   Perform a complete mains power cycle of the inverter (disconnect and reconnect the main supply) as specifically indicated by the fault description.

2. 2

   Verify that the power unit (PU) and control unit (CU) are correctly matched in terms of model, rating, and compatibility according to the manufacturer's documentation.

3. 3

   Visually inspect all connections between the control unit and power unit for proper seating, physical damage, or corrosion.

4. 4

   If possible, attempt to re-establish communication or re-initialize the power unit's ID tag through a specific diagnostic function in the inverter's menu.

5. 5

   If the fault persists after these steps, replacement of the power unit (PU) with a compatible and correctly sized spare is likely required.