Until this routine is completed or deactivated, the drive will not allow normal operation or parameter saving. It is most common during: : When a new motor is being set up.
Sometimes the PLC constantly sends a command to initiate ID run. Ensure the control word from the PLC is not triggering p1900 upon every power-up. Associated Fault: A8526 siemens fault 0a7991
In Siemens TIA Portal (Totally Integrated Automation) and STEP 7 classic environments, diagnostic alarms are often displayed as hexadecimal codes. Fault is not a general PLC stop error (like a watchdog or memory error); rather, it falls into the category of a diagnostic interrupt . Until this routine is completed or deactivated, the
If the A7991 alarm appears in a running system where motor identification is not desired or can be postponed: Ensure the control word from the PLC is
If you have persistent issues even after following this guide, contact Siemens Technical Support with your diagnostic buffer export and hardware configuration file for advanced analysis.