Fanuc Ot Reference Parameter Better |verified| Info

Unlocking the Full Potential of Your FANUC System: Understanding and Utilizing OT Reference Parameters for Enhanced Performance

• $SMAX (maximum spindle speed)
• $SMIN (minimum spindle speed)
• $SSTEP (spindle speed step)
• $S TYPE (spindle type)

• Inconsistent zero position (parts change size daily).
• Tool change interference (turret hits chuck or tailstock).
• Unexpected overtravels (machine alarms out even when axes are centered).
• Grid shift drift (gradual loss of position accuracy).

• Consult Manufacturer Documentation: FANUC provides comprehensive documentation on parameter settings and their implications.
• Seek Expert Advice: Consult with experienced technicians or CNC specialists who have hands-on experience with FANUC systems.
• Gradual Changes: Implement changes gradually, monitoring machine performance closely to avoid unintended consequences.
• Keep Records: Maintain detailed records of parameter changes, including the rationale behind the adjustments.

1. Manually move axis to desired machine zero (using dial indicator or scribe mark).
2. Set parameter 1815 (if available on OT C) – Note: OT A/B often lacks 1815; use procedure via PWE and power cycle.
3. For pure OT A/B without 1815: Set PWE=1, set parameter 508/509 to 0, power off. Then set desired value via absolute encoder setup procedure (reference manual B-61813E).

To refine or correct the reference position, you typically adjust these settings: Parameter 0700–0703 (Stored Stroke Limits)

Conclusion