Fanuc Parameter 1860 (labeled as APRS) is a critical setting used to establish the reference position (home position) for axes equipped with absolute encoders. It functions by signaling to the CNC whether the reference position for a specific axis has been successfully established and "remembered" by the control system. How Parameter 1860 Works
If you are changing 1860, you should check 1861 to ensure your machine behavior is consistent for both feed modes. fanuc parameter 1860 work
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If your machine's zero point is slightly off (e.g., after a minor crash), you might adjust Parameter 1850 (Grid Shift). Fanuc Parameter 1860 (labeled as APRS ) is
On machines equipped with absolute encoders, Parameter 1860 acts as a "memory bank." It records the distance from the machine's zero point to the current absolute position. This allows the machine to "remember" exactly where it is, even after the power is turned off. Parameter 1860 usually defines the Signal Pitch of
Never attempt to force-write or manipulate parameters in the 1800-series (Axis-related parameters) without referring to the official Fanuc Parameter Manual
, the CNC does not need to perform a reference return (homing) every time it is powered on. Instead, it reads the current position from the encoder and updates Parameter 1860. Origin Retention