SV0474
EXCESS ERROR (STOP:SV)
Fanuc · αi Series Servo Amplifier
What does SV0474 mean?
The servo detected that the positional deviation during stopping exceeded the parameter (No. 1839, No.1842) setting value. This indicates a failure of the axis to hold its commanded stop position within tolerance, potentially due to mechanical issues or incorrect tuning.
Repair Steps
- 1
Verify the values of parameters No. 1839 and No.1842, which define the allowable positional deviation during stopping.
- 2
Inspect the mechanical brake for proper operation and wear on the affected axis.
- 3
Check for external forces, excessive load, or increased friction that could cause unexpected movement while stopped.
Verified technical data. Last updated: March 2026
Source: Fanuc αi Series Servo Amplifier