9

Inverter overload

Danfoss · VLT 2800 Variable Speed Drive

What does 9 mean?

The electronic thermal protection for the inverter indicates that the drive is close to disconnecting due to prolonged high output current. The internal counter gives a warning at 98% and trips at 100%. The drive cannot be reset until the counter drops below 90%.

Additional Steps

Steps 1–2 are listed in Priority Fix.

  1. 3

    Ensure adequate cooling for the drive, checking for blocked ventilation or high ambient temperatures.

Source: Danfoss VLT 2800 Variable Speed Drive
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