093
Reference Position Not Established/Absolute PC Required
Fanuc · Alpha i series AC Servo Motor
What does 093 mean?
A first to third reference position return cannot be executed because the reference position has not yet been established, or an external setting was attempted without an Absolute pulse coder.
Common Causes
- The reference position has not been established.
- Attempted external reference position setting without using an Absolute pulse coder.
Repair Steps & Checklist
Click steps to track your progress.
- 1
Execute the procedure to set the reference position.
- 2
For external reference position settings, verify that an Absolute pulse coder is correctly installed and configured.
Verified technical data. Last updated: March 2026
Related Faults
Source: Fanuc Alpha i series AC Servo Motor