5

Voltage warning high

Danfoss · VLT 2800 Variable Speed Drive

What does 5 mean?

The DC bus voltage (VDC) has exceeded the 'Voltage warning high' limit. The motor continues to operate, but if the VDC remains high for 5-10 seconds, the inverter will trip with an Alarm 7 (Overvoltage). This can be caused by an excessively high supply voltage or fast motor deceleration with insufficient braking.

Additional Steps

Steps 1–2 are listed in Priority Fix.

  1. 3

    If overvoltage persists during deceleration, consider installing a braking resistor or braking chopper.

Source: Danfoss VLT 2800 Variable Speed Drive
View Official PDF