Description
The power supply unit at unit location arg has detected a problem with the logic power supply.
Consequences
No operation is possible until the fault is corrected. The system will go to a "motor off" state with zero torque.
Possible causes
Temporary or permanent loss of logic power to driver 24V.
Recommended actions
- Check the event log for power supply unit error messages.
- Check the wiring between the power supply unit and the drive unit.
- Check the 24V output of the power supply unit.