59

Current Limit Exceeded

Danfoss · VLT HVAC Drive FC 102

What does 59 mean?

The drive has reached its output current limit, typically due to excessive motor load or during acceleration/deceleration. While often a warning, prolonged operation at the current limit can lead to overheating, nuisance trips, or premature component wear.

Additional Steps

Steps 1–2 are listed in Priority Fix.

  1. 3

    Check motor parameters for accuracy and ensure they match the connected motor.

  2. 4

    Ensure the drive is correctly sized for the application's peak current demands.

Source: Danfoss VLT HVAC Drive FC 102
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