Alarm codeA7991
Motor data identification active because the motor data identification routine is running and will complete on next power-on or restart. The manual's first action is: “The alarm automatically disappears after the motor data identification routine has been successfully completed.”
- Model
- Siemens SINAMICS V90, SIMOTICS S-1FL6
- Display shows
- Motor data identification active (A7991)
- Type
- Alarm code
- Source
- Manual p. 311
What A7991 means
Motor data identification active p. 311
Common causes
- The motor data ident. routine is activated. The motor data identification routine is carried out at the next power-on command. p. 311
- If a POWER ON or a warm restart is performed with motor data identification selected, the motor data identification request will be lost. If motor data identification is required, it will need to be selected again manually following ramp-up. p. 311
What to do
- The alarm automatically disappears after the motor data identification routine has been successfully completed. p. 311
Before you service the product, read the safety instructions in the manual p. 2.
If A7991 is still not resolved
- Contact service / dealer for assistance p. 2 “Qualified Personnel The product/system described in this documentation may be operated only by personnel qualified for the specific task in accordance with the relevant documentation, in particular its warning notices and safety instructions.”
- Contact service / dealer for assistance p. 13 “NOTICE Property damage due to loose power connections Insufficient tightening torques or vibration can result in loose power connections. This can result in damage due to fire, device defects or malfunctions.”
This page summarises what the manufacturer’s manual says about A7991; each statement links to the page it comes from, and quoted lines are copied word for word. It is not a substitute for the manual or for a qualified installer. ManualLib is not affiliated with Siemens. Found a mistake? Report an error.