7902 ((full)) | Siemens Drive Fault Code

Rotate the driven equipment manually to check for binding, jams, or broken gearboxes. Step 2: Electrical and Wiring Inspection

Siemens SINAMICS drives continuously model the expected motor behavior based on incoming current, voltage feedback, and encoder data (if present). The drive monitors specific mathematical thresholds to flag a stall: sinamics drive motor fault 7902 - SiePortal - Siemens

Disclaimer: Troubleshooting electrical drives can be dangerous. Always ensure proper Lockout/Tagout (LOTO) procedures are followed before touching motor leads or mechanical components. siemens drive fault code 7902

The Siemens drive fault 7902 is effectively a "Motor Stalled" protection mechanism. In almost all cases, will resolve the issue. If the error persists, check mechanical components for blockage.

The load inertia is higher than what the motor was designed for, causing it to stall during acceleration. 2. Parameterization and Commissioning Issues Rotate the driven equipment manually to check for

: Is the motor actually jammed? Check for obstructions or a locked brake.

The (frequently displayed as F07902 ) is a critical safety and operational alarm that indicates a Motor Stalled condition. This fault triggers across multiple families of the Siemens SINAMICS product ecosystem—including the G120, G120XA, G120X, G115D, and S120 drives. When the drive's control unit detects that the motor cannot maintain its designated speed under load for longer than a predefined window of time, it immediately generates this fault to prevent hardware degradation. If the error persists, check mechanical components for

The physical motor characteristics do not match the parameters typed into the drive software (Starter, Startdrive, or the BOP/AOP operator panels).