The Siemens drive fault code F7902 (or 7902) Motor Stalled (or "Motor out of step"). This fault occurs when the drive detects that the motor is not rotating despite a torque or current being applied, or it has lost synchronism with the drive's output frequency. Common Causes Mechanical Overload:
Does the fault happen immediately on start or while the machine is running at speed? siemens drive fault code 7902
For detailed technical guidance, you can consult the official SINAMICS G120 Manual or visit the Siemens SiePortal for community-driven troubleshooting. sinamics drive motor fault 7902 - SiePortal - Siemens The Siemens drive fault code F7902 (or 7902)
Fault F07902 indicates that the drive believes the Motor has Stalled (Motor Locked/Blocked). Cycle power to the drive (only after recording