Fanuc Parameter 1860 //free\\: Full

Parameter 1860: Reference Point Return Speed (High-Speed "G28" Approach)

: When performing a full system backup, Parameter 1860 must be recorded. If these values are lost and not restored correctly, the machine will not know its physical location, potentially leading to overtravel alarms or crashes. Troubleshooting "Full" or Error States

G10 L50 N1860 P1 R60 (Sets parameter 1860 for axis 1 (X) to 60 ms) G10 L50 N1861 P2 R80 (Sets parameter 1861 for axis 2 (Y) to 80 ms) ... G11 (End parameter input mode) fanuc parameter 1860 full

By following this guide, you can confidently adjust Fanuc Parameter 1860, recover from a lost zero, and keep your CNC machining center running with original factory precision. Remember: The parameter itself never crashes the machine – only the incorrect value typed by the user does. When in doubt, revert to zero and call a professional. Go to OFFSET/SETTING screen

How to Set Parameter 1860 Correctly (for incremental system)

By understanding and effectively utilizing FANUC parameter 1860, CNC machine users can unlock the full potential of their machines, achieving improved machining performance, reduced cycle times, and enhanced productivity. recover from a lost zero

Step 1: Enable Parameter Write

Case Study: Correcting a Lost Zero After Battery Failure

Go to OFFSET/SETTING screen.
Set PWE (Parameter Write Enable) to 1. The control will flash "P/S 100" alarm – this is normal.
Press the SYSTEM key to enter parameter mode.
Type 1860 and press the NO. SEARCH soft key.
You will see the current value (e.g., 0 or -2500).
To Change: Key in the new value and press INPUT.
CRITICAL: Immediately turn PWE back to 0.
Cycle power (turn control OFF, then ON). Many Fanuc controls require a full reboot for 1860 changes to take effect.
Test: Manually jog the axis away from zero. Then perform a reference return. Verify the position against your known safe spot.