Siemens F37043 fault code meaning
Siemens / F37043
Series: G120-CU250S-2, S120-S150
HF damper: 24 V overvoltage
converter
Meaning: HF damper 24 V power supply overvoltage. - The voltage has continuously exceeded threshold 31.5 V for longer than 3 ms.
Possible causes
Source: SINAMICS G120, Control Unit CU250S-2 P1606; SINAMICS S120_S150 P3203