Code 7902 | Siemens Drive Fault

In the drive parameters (using STARTER or Startdrive):

| Parameter | Description | Typical Value | |-----------|-------------|----------------| | p2040 | Monitoring time for telegrams (ms) | 100–500 ms | | p0922 | Telegram configuration (e.g., 1, 352, 999) | Match PLC configuration | | r2060 | Telegram received? | Should increment cyclically | | p8700 (PROFIBUS) / p8839 (PROFINET) | Station address / device name | Unique and matching PLC | siemens drive fault code 7902

: Incorrectly set motor data (voltage, current, or frequency) or missing motor identification (ID) runs. In the drive parameters (using STARTER or Startdrive):

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 The drive monitors the deviation between the speed