Nidec & Control Techniques Unidrive M700, M600, M400, HS30 & HS70 Drive
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Apr 13, 2024 5:20 am
Cause : Braking IGBT over current detected: short circuit protection for the braking IGBT activated comes when the OI Brake trip indicates that over current has been detected in braking IGBT or braking IGBT protection has been activated.This trip cannot be reset until 10 s after the trip was initiated.
- Check brake resistor wiring.
- Check braking resistor value is greater than or equal to the minimum resistance value.
- Check braking resistor insulation.
