Siemens · SINAMICS G120
This alarm indicates that the speed control optimization process (parameter P1960) is active or has been selected to run. This is a normal state when the drive is fine-tuning its speed control parameters to achieve optimal performance and responsiveness.
Click steps to track your progress.
1. Allow the speed control optimization process (P1960) to complete its cycle; this is a normal tuning operation.
2. Ensure no external mechanical disturbances or abrupt load changes are occurring during the optimization process.
3. Monitor the optimization progress via relevant status parameters (e.g., r0002, r1961) on the HMI or engineering tool.
4. If the optimization fails or is stuck, cancel it (e.g., P1960=0) and manually adjust relevant speed controller parameters (e.g., P1460, P1462, P1470, P1472).
5. Verify the motor's actual speed feedback (e.g., r0021) is stable and accurate during the optimization attempt.