27
Brake IGBT Fault
Danfoss · VLT HVAC Drive FC 102
What does 27 mean?
A fault has been detected in the Insulated Gate Bipolar Transistor (IGBT) responsible for controlling the braking resistor. This indicates a hardware failure in the braking chopper circuit, rendering the braking function inoperable and potentially leading to drive overvoltage trips during deceleration.
Source: Danfoss VLT HVAC Drive FC 102
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