Fanuc alarm SV0475: n AXIS:EXCESS ERROR (MOVING:MNT)
safety/dual-check alarm · Fanuc 30i/31i/32i-B
What it means
During motion, the safety monitor found the positional deviation of axis n beyond the parameter No.1828 limit (parameter No.1838 applies in safety signal mode C, guard-open state). It indicates the axis did not track its command within the allowed following error under safety supervision.
Likely causes
- Parameter 1828/1838 limits set unrealistically tight
- Mechanical overload, binding or crash slowing the axis
- Servo drive or feedback fault
Need the part urgently?
Send us alarm SV0475 with your machine details — typical RFQ turnaround is 24–48h.