Siemens A37312 fault code meaning

Series: G120-CU250S-2, S120-S150

HF Reactor: Overtemperature or fan fault

converter

Meaning: The HF reactor reports an overheat or fan failure. If the alarm persists for longer than 30s, fault F37313 is output.

Possible causes

Source: SINAMICS G120, Control Unit CU250S-2 P1609; SINAMICS S120_S150 P3205