Parameter 1860 ((free)) Full | Fanuc

Here's a brief overview:

Understanding FANUC Parameter 1860: The Complete Guide to Position Deviation Limits fanuc parameter 1860 full

A Fanuc Robodrill (16i control) lost absolute encoder batteries over the weekend. After replacing batteries, the Z-axis zero was off by -12.345 mm (the tool changer finger crashed into the spindle). Here's a brief overview: Understanding FANUC Parameter 1860:

There are three primary reasons a machinist or service technician modifies Parameter 1860: Remember: The parameter itself never crashes the machine

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.

If you are experiencing vibration or servo alarms during rapid direction changes (like a G01 moving from X to Y), adjusting Parameter 1860 (along with 1620/1622) acts as a "dampener." It forces the axis to hesitate slightly during the transition, eliminating the shock to the ball screw.

The following is a general procedure for re-establishing the absolute reference position using Parameters 1815 and 1860/1861: