Parameter 1860 is most often used during maintenance or after a mechanical crash to reset the home position. A typical procedure involves: Moving the axis to the desired physical home position. Setting the APZ bit (Parameter 1860) to for that axis. Powering the machine off and back on.
In most modern Fanuc controls (such as the 0i, 16i, 18i, and 21i series), the process of setting this parameter is often automated during a zero-point establishment procedure. fanuc parameter 1860 work
: The zero point is not established . This usually occurs after replacing a battery (resulting in a "300 APC Alarm") or after a motor/encoder replacement. Parameter 1860 is most often used during maintenance
: Used for Backlash Compensation once the axis is homed. Powering the machine off and back on
: When you perform a manual reference position return, the system sets the current physical position as the "zero" point and updates Parameter 1860 accordingly while flipping 1815#4 (APZ) to 1 .
Fanuc parameter (also labeled as POSCNT ) is a critical axis-specific setting used to define the position feedback pulse count for the spindle encoder. It essentially tells the CNC system how many pulses are generated for each revolution of the spindle, allowing for precise speed and position control. ⚙️ How Parameter 1860 Works