Siemens F07431 fault code meaning
Siemens / F07431
Series: G120-CU250S-2, S120-S150, S220
Drive: Cannot switch to encoderless run
converter
Meaning: Cannot switch from open-loop torque control to encoderless operation (p1404).
Possible causes
Source: SINAMICS G120, Control Unit CU250S-2 P1378; SINAMICS S120_S150 P2757; SINAMICS S220 Converter P2295
Series: S110
Drive: Cannot switch to encoderless run
servo drive
Meaning: Cannot switch from open-loop torque control to encoderless operation (p1404).
Possible causes
Source: SINAMICS S110 P1015