Fanuc Parameter 1860 - Full [updated]

Achieving high-precision machining on a Fanuc-controlled machine tool requires more than just a rigid structure; it requires precise control of servo movement. One critical, yet often misunderstood, parameter in the servo adjustment suite is .

While most users focus on standard Cutting Feedrate parameters (like 1420 or 1422), Parameter 1860 controls the . Specifically, it sets the feedrate limit during the time constant adjustment after a speed change.

Some operators shift Z-axis zero (Parameter 1860) slightly positive to gain extra clearance for a large drill or boring bar, though this is dangerous and not recommended for production. fanuc parameter 1860 full

Before concluding, it is vital to include the warnings found in the FANUC additional manuals, as these are often missed:

This appears if you enter a value outside the allowable range for your axis configuration. Check your machine's specific Fanuc manual. Specifically, it sets the feedrate limit during the

When executing a coordinate calibration or recovering from an absolute pulse coder battery failure, Parameter 1860 bridges the gap between the machine's absolute electrical grid and its actual physical alignment. Parameter Technical Overview : 1860 Data Type : Two-word axis (Long Integer) Valid Range : -99999999 to 99999999 Default Value : 0

Typically, parameter 1860 is set to a value between 0 and 100, where: Check your machine's specific Fanuc manual

Given the complexity, here is the definitive checklist for dealing with Parameter 1860:

A "full" shift in one direction would be entering 99999999 , which would shift zero approximately 99,999 mm (99 meters) – obviously not practical. The practical full range is limited by your machine's physical travel. Never exceed the hard limit switches.