Nidec & Control Techniques Commander S, SE, SX, SK & SP Drive
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Apr 05, 2024 6:15 am
Cause : DC bus under voltage comes when low AC supply voltage or low DC Bus voltage when drive supplied by external DC power supply.
Undervoltage fault means that the voltage on the DC bus is lower than the undervoltage detection value of the inverter, and the inverter reports an undervoltage fault to protect the circuit.
