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WARNING/ALARM 7 in danfoss VLT FC280 drive

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(@click2electro)
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Joined: 4 years ago

Cause : DC overvoltage comes when the intermediate circuit voltage exceeds the limit, the frequency converter trips after a time.

  • Connect a brake resistor.
  • Extend the ramp time.
  • Change the ramp type.
  • Activate the functions in 2-10 Brake Function.
  • Increase the value in 14-26 Trip Delay at Inverter Fault.
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