Danfoss Drives
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Jan 17, 2024 7:59 am
Warning /Alarm 7 in VLT Micro Drive FC301/ FC302 : DC overvoltage - comes when the DC-link voltage exceeds the limit, the drive trips after a certain time.
- Extend the ramp time.
- Change the ramp type.
- Activate the functions in parameter 2-10 Brake Function.
- Increase parameter 14-26 Trip Delay at Inverter Fault.
- If the alarm/warning occurs during a power sag, use kinetic back-up (parameter 14-10 Mains Failure).
- Connect a brake resistor.
