A "Motor Data Identification" (MotID) or static optimization run was not completed correctly during commissioning. Ramp Settings: The acceleration ramp ( cap P 1120
Replaced contactor and implemented weekly starter torque check. Fault 7902 eliminated. siemens drive fault code 7902
G120XA solution to warning F7902 motor out of step - Siemens A "Motor Data Identification" (MotID) or static optimization
Remember: Never ignore 7902. While sensor faults are easy fixes, ignoring genuine overtemperature will lead to premature motor insulation failure, costly rewinds, or even a stalled production line. List Manual (LH1)
Gather the following before calling:
In the drive parameters (using STARTER or Startdrive):
Siemens Drive Maintenance / Automation Engineer Date: [Insert current date] Firmware reference: SINAMICS parameter manual, List Manual (LH1)