25

Brake Resistor Short-Circuited

Danfoss · VLT HVAC Drive FC 102

What does 25 mean?

The connected braking resistor has been detected as short-circuited. This prevents proper energy dissipation during braking, potentially damaging the drive's braking chopper or causing overvoltage trips during deceleration.

Additional Steps

Steps 1–2 are listed in Priority Fix.

  1. 3

    Replace the braking resistor if it is short-circuited or visibly damaged.

Source: Danfoss VLT HVAC Drive FC 102
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