Haas CNC Alarm 985 (Mill) DC BUS OV CHRG

Haas CNC Alarm 985 (Mill) DC BUS OV CHRG
Alarm Description, Cause & Remedy
DC Bus over voltage during charge up. The DC bus monitor detected an improper charge-up. The DC bus voltage was too high during the 2-second charge up sequence. This can be caused by the incoming AC voltage being too high or because the main transformer is tapped improperly. Make sure the incoming line voltage and your main transformer taps are setup properly. This can only happen at power-up. If this fault occurs, it cannot be reset.


Haas CNC Alarm 985 (Mill) DC BUS OV CHRG