LINE CONV

What does FF51 mean?

This fault indicates an issue on the line side converter of the ABB ACS800 drive. The specific nature of the fault requires further investigation using the line side converter's own diagnostics.

• Issues with the incoming AC supply voltage, such as overvoltage, undervoltage, or phase imbalance.
• Malfunction or failure of components within the line side converter's power section.
• Faults or incorrect parameter settings within the line side converter's control board.
• Insufficient cooling or high ambient temperatures affecting the line side converter components.

Click steps to track your progress.

1. 1

   Shift the control panel from the motor side converter control board to the line side converter control board to view its specific fault messages.

2. 2

   Refer to the dedicated line side converter manual for detailed fault descriptions and troubleshooting steps.

3. 3

   Verify the incoming line supply voltage and ensure all phases are present and balanced.

4. 4

   Inspect the line side converter for any visible damage, tripped circuit breakers, or warning indicators.