Siemens · SINAMICS S120/S150 Reference List
This fault is triggered when the actual temperature (r4105[6]) for channel 6 on the Terminal Module 150 (TM150) exceeds its configured fault threshold (p4102[13]), or if an associated timer (p4103[6]) 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.
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Verify the actual temperature of the equipment monitored by channel 6 using a calibrated pyrometer or thermal imager, referencing r4105[6].
Inspect the cooling system (fans, vents, heat sinks) of the TM150 module and the equipment connected to channel 6 for obstructions or malfunction.
Check the wiring integrity of the temperature sensor for channel 6 at the TM150 terminal block for proper connection and insulation.
Review the operational history and current load profile of the equipment on channel 6 to identify any deviations causing thermal stress.
If the measured temperature is accurate and within limits but r4105[6] is high, replace the temperature sensor assigned to TM150 channel 6.
If process changes or component upgrades allow, adjust parameter p4102[13] (Fault threshold channel 6) to reflect the new, safe operating maximum.