Test for an undersized motor, which may need to be upgraded to handle the load. If you can share: What type of machine this drive is controlling?
You likely initiated a "Quick Commissioning" or a manual motor ID run. How to resolve: Wait for completion: siemens fault 0a7991 best
motor stalled) later because the drive doesn't "know" the motor's exact characteristics. 3. Resolving Persistent Alarms Test for an undersized motor, which may need
This one habit prevents 80% of 0A7991 occurrences. Test for an undersized motor