Description
The rectifier unit at drive unit position arg has detected a loss of supply voltage.
Consequences
No operation is possible until the fault is corrected. The system will go to "Motor Off" state.
Possible causes
- Input supply voltage is lost.
- There is some fault in the cables or internal three-phase components.
- Rectifier unit failure.
Recommended actions
- Check the input supply voltage.
- Check all three-phase components (main switch, mains filter, fuses, contactors) and wiring inside the drive module.