Siemens · SINAMICS S120/S150 Reference List
This fault is triggered when the actual temperature (r4105[11]) for channel 11 on the Terminal Module 150 (TM150) exceeds its configured fault threshold (p4102[23]), or if an associated timer (p4103[11]) expires. If a BICO interconnection exists, this fault will cause the drive to shut down. The fault will persist until the temperature falls below the threshold (minus hysteresis) and is acknowledged.
Click steps to track your progress.
1. Measure the actual temperature of the component connected to TM150 channel 11 using an independent calibrated thermometer.
2. Verify the configured fault threshold p4102[23] in the drive parameters against the component's maximum allowable temperature specification.
3. Disconnect the temperature sensor from TM150 channel 11 and measure its resistance value; compare it with the sensor's datasheet at ambient temperature.
4. Check terminal connections X1.11 to X1.12 (typical for channel 11) on the TM150 module for proper seating and torque (e.g., 0.5 Nm).
5. Monitor the raw temperature value r4105[11] and p4103[11] (timer) in the drive diagnostics to identify sensor drift or intermittent spikes.
6. Temporarily swap the TM150 module with a known good one to isolate if the module itself is faulty.