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Jul 01, 2026 12:37 pm
Err27 fault in Emotron VS Series Drive indicates Inverter soft-start relay is off. This means the soft-start bypass relay inside the inverter failed to close properly, likely due to insufficient incoming power or a hardware failure.
Possible Causes:
1: The grid voltage is too low.
2: Rectifier module failure.
Solutions:
1: Check the grid voltage.
2: Demand for technical support.