Undervoltage 3 (Soft-Charge Bypass Circuit Fault)

What does Uv3 mean?

The soft-charge bypass circuit has failed. This could be due to damage to the relay or contactor within the circuit, or the circuit exceeding its expected performance life as indicated by monitor U4-06.

• The relay or contactor on the soft-charge bypass circuit is damaged
• Soft-charge bypass circuit performance life (monitor U4-06) exceeds 90%

Click steps to track your progress.

1. 1

   Cycle power to the drive

2. 2

   Check monitor U4-06 for the performance life of the soft-charge bypass

3. 3

   If monitor U4-06 exceeds 90%, replace the control board or the entire drive