Nidec & Control Techniques Unidrive M700, M600, M400, HS30 & HS70 Drive
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Apr 13, 2024 6:39 am
Cause : Brake resistor over temperature comes when the Th Brake Res is initiated, If hardware based braking resistor thermal monitoring is connected and the resistor overheats.
If the braking resistor is not used then this trip must be disabled with bit 3 of Action On Trip Detection (10.037) to prevent this trip.
- Check brake resistor wiring.
- Check braking resistor value is greater than or equal to the minimum resistance value.
- Check braking resistor insulation.
