8

Slow Down Warning

Danfoss · VLT Micro Drive FC 51

What does 8 mean?

This warning suggests that the drive is operating in a condition where it needs to reduce its output frequency or torque to maintain stable operation, often due to exceeding a current or voltage limit. While not an immediate trip, continued operation under these conditions can lead to a trip or reduced performance.

Additional Steps

Steps 1–2 are listed in Priority Fix.

  1. 3

    Ensure adequate voltage is supplied to the drive and that there are no significant sags or surges.

  2. 4

    Review acceleration/deceleration ramp times; increasing them might alleviate the need for the drive to slow down aggressively.

  3. 5

    Consider if a higher-rated drive or motor might be necessary for the application.

Source: Danfoss VLT Micro Drive FC 51
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