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Oht1 fault code in commander SX control techniques drive

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(@click2electro)
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Joined: 4 years ago

Cause : Dv over heat comes when IGBT overheating (sensor) due to the thermal model of the IGBT thermal monitoring has detected an overheat. This function is protecting the IGBT's.

  1. Ambient temperature too high.
  2. Fans not funtioning properly or at all.
  3. Filter blocked.
  4. Inadequate ventilation.
  5. Motor wired incorrectly.
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