Siemens Fault 0a7991 Best -

: If disabling the motor ID causes an overcurrent fault, the motor data might be incorrectly parameterized, or the control mode ( p1300 ) might be too aggressive for the unmeasured motor. If you tell me the exact drive model (e.g., SINAMICS G120C Go to product viewer dialog for this item.

The drive is telling you: “I cannot measure the motor because I am not in the correct operational condition (OFF1 or OFF2 active, or I am still processing another command).” siemens fault 0a7991 best

If the identification was activated by mistake or you are testing without a motor connected (e.g., during a Factory Acceptance Test), you can manually clear it. : If disabling the motor ID causes an

: After the alarm disappears, ensure you perform a Copy RAM to ROM (e.g., set p0971 = 1 ) to permanently save the new motor data, otherwise, the alarm may return after a power cycle. Common Troubleshooting Steps : After the alarm disappears, ensure you perform