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SV0477
ILLEGAL MACHINE POS.(SV)
Fanuc · Alpha i Series Servo Amplifier
Hva betyr SV0477 ?
The servo detected that the machine position on the axis is not within the safety area (parameter No.13831 to 13838) during safety monitoring (when the safety check request signal (*VLDVx) is 0). This indicates the axis moved outside its defined safe operating envelope after the machine reference position was established, which can lead to collisions or unsafe conditions.
Vanlige årsaker
- Machine reached an unexpected position due to external forces or incorrect command.
- Axis limit switch triggered unexpectedly during movement.
- Following error too large, exceeding P1-54.
- Incorrect homing sequence or lost position reference.
Reparasjonssteg & Sjekkliste
Klikk på steg for å spore fremgangen.
- 1
Confirm that parameters No.13831 to 13838 define the correct safety area for the machine.
- 2
Verify that the axis operation program ensures movement is performed within the established safety area.
- 3
Ensure the machine reference position has been correctly established for the affected axis.
Verifisert teknisk data. Sist oppdatert: March 2026
Relaterte feilkoder
Kilde: Fanuc Alpha i Series Servo Amplifier