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ALARM 29 in danfoss VLT6000

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(@click2electro)
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Cause : Heat sink temperature too high comes when the enclosure is IP 00 or IP 20/NEMA 1, the cut-out temperature of the heat-sink is 90°C. If IP 54 is used, the cut-out temperature is 80°C. The tolerance is ± 5°C.

  1. The temperature fault cannot be reset, until the temperature of the heat-sink is below 60°C.
  2. The fault could be the following:
    - Ambient temperature too high
    - Too long motor cable
    - Too high switching frequency.
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