Siemens · SINAMICS S120/S150 Reference List
This fault is triggered when the actual temperature (r4105[7]) for channel 7 on the Terminal Module 150 (TM150) exceeds its configured fault threshold (p4102[15]), or if an associated timer (p4103[7]) 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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Measure the current operating temperature of the component monitored by channel 7 using a reliable external temperature sensor, comparing it with r4105[7].
Ensure proper ventilation paths are clear and clean any dust from the heat sinks and fans of the TM150 module and the equipment on channel 7.
Conduct a continuity test and visual inspection of the wiring for the temperature sensor on channel 7 from the sensor to the TM150 input.
Examine the operational data for the component on channel 7 to confirm it is not running in an overload state or with compromised lubrication.
If the actual temperature is within tolerance but r4105[7] is elevated, replace the temperature sensor connected to TM150 channel 7.
Adjust parameter p4102[15] (Fault threshold channel 7) to a higher, safe value if a thorough engineering review supports it, considering component specifications.