This guide provides a comprehensive overview of this fault, including its meaning, common causes, affected products, step-by-step resolution procedures, and advanced troubleshooting tips.
: The drive will not start normal operation until this identification is completed or disabled. siemens fault 0a7991
To resolve this alarm, users on Siemens SiePortal suggest the following: This guide provides a comprehensive overview of this
Issue the drive a start signal through whatever method is used in the application—this can be the built-in Control Panel, a BOP-2 panel, terminal control, or a PLC over the fieldbus. Upon receiving the start command, the drive will automatically begin the motor data identification measurement. Upon receiving the start command, the drive will
Depending on the identified root cause, here are the appropriate solutions.
Specifically, this fault usually indicates a In many documented cases, this fault is triggered when the Control Unit (CU) cannot verify the parameters of the Power Module (PM) or when a fieldbus communication (such as PROFINET or PROFIBUS) times out.
If the fault is intermittent: