384
SOFT PHASE ALARM(EXT)
Fanuc · Series 30i/31i/32i-MODEL B Plus
What does 384 mean?
This external alarm signals a position data alarm originating from the separate detector, which is typically a result of detector failure. This indicates an issue with the phase relationship of the position signals.
Common Causes
- Position data alarm from the separate detector
- Separate detector failure
Repair Steps
- 1
Replace the detector.
Verified technical data. Last updated: March 2026
Source: Fanuc Series 30i/31i/32i-MODEL B Plus