Siemens A31401 fault code meaning
Siemens / A31401
Series: DCM-6RA80
Encoder 1: Zero pulse fault (alarm threshold exceeded
DC drive
Meaning: The distance traveled has exceeded 1.5 times the set zero pulse distance without a zero pulse being detected. Set the zero pulse distance for zero pulse monitoring in p0425 (rotary encoder) or p0424 (linear encoder).
Possible causes
Source: SINAMICS DCM, Parameter Manual, firmware version 1.5 SP2 (based on 5.1 SP2) P1080
Series: G120-CU250S-2, G120D
Encoder 1: Zero pulse fault alarm threshold
converter
Meaning: The distance has exceeded 1.5 times the set zero pulse distance. Set the zero pulse distance for zero pulse monitoring in p0425 (rotary encoder) or p0424 (linear encoder).
Possible causes
Source: SINAMICS G120, Control Unit CU250S-2 P1055; SINAMICS G120D Control Unit CU240D- 2_CU250D- 2 P943
Series: G130-G150
Encoder 1: Alarm threshold, zero marked failed
converter
Meaning:
Possible causes
Source: G150 P934
Series: S120-S150
Encoder 1: Zero pulse fault (alarm threshold exceeded
converter
Meaning: 1.5 times the set zero pulse distance has been exceeded without a zero pulse being detected. Set the zero pulse distance for zero pulse monitoring in p0425 (rotary encoder) or p0424 (linear encoder).
Possible causes
Source: SINAMICS S120_S150 P2990