Understanding Fanuc Parameter 1860: Reference Position and Absolute Encoders
In Fanuc CNC systems, Parameter 1860 acts as the machine's memory for when using absolute pulse coders (APC). Unlike incremental encoders, which must hit a "limit switch" or "dog" every time the machine starts up, absolute encoders always know their position. fanuc parameter 1860 work
Most issues related to Parameter 1860 arise after a or motor replacement. When you power on a Fanuc machine equipped
When you power on a Fanuc machine equipped with absolute encoders: Because Parameter 1860 is a system-generated value, you
It is a critical, read-only system parameter used by the CNC to track exactly where an axis is relative to its reference (home) position. If the value in Parameter 1860 is lost or incorrect—often due to a battery failure—the machine will lose its "sense" of where it is, leading to homing alarms. What is the Function of Parameter 1860?
Because Parameter 1860 is a system-generated value, you do not "type in" a value manually. Instead, you perform a procedure to let the CNC update it: