When the Siemens fault 0A7991 occurs, users may experience the following symptoms:
If you are commissioning a new motor, you should allow the drive to complete its measurement. : Issue a "Power On" or "Run" command to the drive. siemens fault 0a7991 best
For more detailed troubleshooting, you can check the community discussions on the Siemens SiePortal Forum or reference the SINAMICS G120C manual . To give you the most accurate steps, could you tell me: Which are you using (e.g., G120, S120, V20)? Is this a new setup or a drive that was already running ? Dealing with Motor ID ( code 7991 ) - SiePortal - Siemens When the Siemens fault 0A7991 occurs, users may