Siemens F30078 fault code meaning
Siemens / F30078
Series: S120-S150
Power unit: Fan damaged or power supply reactor overheat
converter
Meaning: Temperature monitoring for the internal braking resistor or power supply reactor has responded. In addition to the OFF2 response, the internal braking resistor has been disabled.
Possible causes
Source: SINAMICS S120_S150 P2907
Series: S210
Power unit: Fan damaged or power supply reactor overheat
servo drive
Meaning: Temperature monitoring for the internal braking resistor or power supply reactor has responded. In addition to the OFF2 response, the internal braking resistor has been disabled.
Possible causes
Source: SINAMICS S210_SIMOTICS S-1FK2 and S-1FT2 P912
Series: S220
Power unit: Line reactor overheat
converter
Meaning: Temperature monitoring of the line reactor has responded. In addition to the OFF2 response, the braking resistor has been disabled. Note: - In a common DC bus system, the line reactor may overheat if the rectifiers of the power units do not feed drive power evenly into the DC bus.
Possible causes
Source: SINAMICS S220 Converter P2477