Siemens A34903 fault code meaning
Siemens / A34903
Series: G130-G150, S120-S150
VSM: I2C-Bus bus fault occurred
converter
Meaning: An abnormal condition occurred while accessing the module's internal I2C bus.
Possible causes
Source: SINAMICS G130_G150 P1943;SINAMICS S120_S150 P3135
Series: G200, G220
VSM: I2C bus fault occurred
converter
Meaning:
Possible causes
Source: SINAMICS G200 converter P786; SINAMICS G220 converter P1575
Series: G210, G210X, S220
VSM: I2C bus fault occurred
converter
Meaning: An error occurred while accessing the internal I2C bus of the module.
Possible causes
Source: SINAMICS G210 converter P1351; SINAMICS G210X converter P1054; SINAMICS S220 converter P2679