Siemens Drive Fault Code 7902 [new] Jun 2026

The weight or resistance of the process material exceeds the rated torque capability of the motor and drive configuration.

Troubleshooting Siemens Drive Fault Code F07902: Causes and Solutions

user wants a comprehensive article about the Siemens drive fault code 7902. I need to gather information from multiple sources to cover all aspects. I will follow the search plan provided in the hints. This involves initial broad searches, deeper searches on specific topics, and supplementary searches for related models and visuals. I'll start with the first set of searches. initial search results have provided a substantial amount of information. I have results from Siemens Industry Support, click2electro.com, ManualsLib, and various Siemens community forums. These cover fault descriptions, causes, and potential solutions. I will now proceed to the deeper searches on tuning parameters and other drive models as outlined in the search plan. search results have provided a wealth of information from various sources, including Siemens support forums, manuals, and technical articles. I have enough material to structure a comprehensive article covering the description, causes, troubleshooting, and solutions for fault code 7902. I will now proceed to write the article. have gathered a substantial amount of information from various sources, including Siemens support forums, manuals, and technical articles. The material covers the fault description, causes, troubleshooting steps, and solutions. I will now structure the article with an introduction, sections on understanding the fault, mechanical vs. electrical causes, software parameters, troubleshooting steps, advanced considerations, and a conclusion. I will cite the relevant sources throughout.Troubleshooting and Resolving Siemens Drive Fault Code F7902: Motor Stalled** siemens drive fault code 7902

The most common cause is a physical obstruction or an actual mechanical stall in the driven equipment.

Before adjusting digital parameters, rule out physical restrictions. The weight or resistance of the process material

Unlike fault 7900 (Motor Blocked), which usually occurs at very low speeds, typically triggers when the motor enters a current limit above a specific speed threshold. The drive monitors the deviation between the speed setpoint and the actual speed feedback (or estimated speed in encoderless mode). Primary Causes & Parameters

If the motor nameplate data (voltage, current, power, speed, power factor) entered during commissioning is incorrect, the drive cannot accurately model or control the motor. I will follow the search plan provided in the hints

Open the motor terminal box. Verify the position of the shorting links (jumpers).

When a Siemens SINAMICS drive (such as the S120, G120, G130, or S210) displays F07902 , it is triggering a alarm. The official Siemens definition is that the drive has detected a "motor stalled" condition.

A broken or loose connection in the U, V, W output motor cables means the motor runs on missing phases, dropping its torque capacity significantly. 4. Ramp and Tuning Issues

What (e.g., G120, S120) are you working with?