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Siemens Fault 0a7991 ((top)) -

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is an informational alarm indicating that the Motor Data Identification (Motor ID) routine is actively enabled within a Siemens SINAMICS variable frequency drive. It commonly appears on popular drive platforms like the Siemens SINAMICS G120 series, G120C, G150, S120, and V70 lines.

If you do not wish to perform the identification (e.g., during bench testing without a motor), you can disable it via the Siemens Parameter List :

Siemens Fault 0a7991 ((top)) -

is an informational alarm indicating that the Motor Data Identification (Motor ID) routine is actively enabled within a Siemens SINAMICS variable frequency drive. It commonly appears on popular drive platforms like the Siemens SINAMICS G120 series, G120C, G150, S120, and V70 lines.

If you do not wish to perform the identification (e.g., during bench testing without a motor), you can disable it via the Siemens Parameter List : siemens fault 0a7991

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