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Warning 7 in danfoss VLT FC360 drive

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Warning 7 in danfoss VLT FC360 drive : DC overvoltage - comes when the DC-link voltage exceeds the limit, the drive trips after a certain time.

  1. Extend the ramp time.
  2. Change the ramp type.
  3. Activate the functions in parameter 2-10 Brake Function.
  4. Increase parameter 14-26 Trip Delay at Inverter Fault.
  5. If the alarm/warning occurs during a power sag, use kinetic back-up (parameter 14-10 Mains Failure).
  6. Connect a brake resistor.
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