Siemens A31470 fault code meaning
Siemens / A31470
Series: DCM-6RA80
Encoder 1: Encoder reports internal error (X521.7
DC drive
Meaning: On cabinet encoder module 30 (SMC30), the 0 signal at terminal X521.7 reports encoder contamination.
Possible causes
Source: SINAMICS DCM, Parameter Manual, firmware version 1.5 SP2 (based on 5.1 SP2) P1089
Series: G120-CU240B-E-2, G120-CU250S-2
Encoder 1: Contamination detected
converter
Meaning: At the secondary encoder system interface of cabinet encoder module 30 (SMC30), the 0 signal at terminal X521.7 reports encoder contamination.
Possible causes
Source: SINAMICS G120, Control Unit CU240B-2_CU240E-2 P788; SINAMICS G120, Control Unit CU250S-2 P1518
Series: G130-G150, S120-S150
Encoder 1: Encoder reports internal error (X521.7
converter
Meaning: On cabinet encoder module 30 (SMC30), the 0 signal at terminal X521.7 reports encoder contamination.
Possible causes
Source: SINAMICS G130_G150 P1817;SINAMICS S120_S150 P3000
Series: G210, G220
Motor encoder: Encoder reports an internal error (X521.7
converter
Meaning: On cabinet encoder module 30 (SMC30), the 0 signal at terminal X521.7 reports encoder contamination.
Possible causes
Source: SINAMICS G210 converter P1257; SINAMICS G220 converter P1508
Series: S110
Encoder 1: Contamination detected
servo drive
Meaning: At the secondary encoder system interface of cabinet encoder module 30 (SMC30), the 0 signal at terminal X521.7 reports encoder contamination.
Possible causes
Source: SINAMICS S110 P1132
Series: S220
Motor encoder: Encoder reports an internal error (X521.7
converter
Meaning:
Possible causes
Source: SINAMICS S220 converter P2538