Siemens F31121 fault code meaning
Siemens / F31121
Series: G120-CU250S-2
Encoder 1: Coarse position error
converter
Meaning: A fault was detected on the module during actual value acquisition. This fault indicates that actual value acquisition supplied an incorrect coarse position. See: p0491 (Motor encoder fault response "Encoder").
Possible causes
Source: SINAMICS G120, Control Unit CU250S-2 P1048
Series: G130-G150
Encoder 1: Coarse position error
converter
Meaning:
Possible causes
Source: G150 P931
Series: S110
Encoder 1: Coarse position error
servo drive
Meaning: A fault was detected on the module during actual value acquisition. This fault indicates that actual value acquisition supplied an incorrect coarse position. See: p0491 (Motor encoder fault response "Encoder").
Possible causes
Source: SINAMICS S110 P1117