Siemens 815 fault code meaning

Series: SIMODRIVE 611U

Power module temperature prewarning

servo drive

Meaning: The power unit heatsink temperature is sensed using a thermosensor located on the main heatsink. If the overtemperature condition remains, then the drive shuts down after approx. 20 s.

Possible causes

Source: SIMODRIVE 611 universal Function Manual FBU 05/2010 (EN, Siemens official site) 7.3