F01002: Internal software error fault in siemens drive

F01002: Internal software error fault in siemens drive indicates that the indicates that the  general internal software error has occurred. 

Cause:
This can be caused by a variety of internal software issues.
Remedy: Perform a POWER ON (switch-off/switch-on) for all components. If the fault persists, upgrade the firmware or contact Siemens technical support.

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