Parameter 1860 is used by the CNC control to track the physical location of an axis even when the power is turned off, provided the machine is equipped with absolute encoders and battery backup. Homing & Synchronization

After setting the parameter, be sure to save the changes and restart the machine, if required.

If the machine tool coordinate exceeds the value set in , the CNC rounds the value using the logic specified. APZ in 1815: Must be 1 for absolute positioning.

[Absolute PulseCoder] ──(Grid/Reference Link)──> [CNC Calculates Offset] ──> Automatically Writes to Parameter 1860

Parameter 1860 and Parameter 1825 (position loop gain) work in tandem. If you increase 1825 for higher stiffness, you may need to decrease 1860 to avoid instability. Conversely, a low 1825 with a very low 1860 will cause overshoot.

If you tell me your exact Fanuc control model and software version (for example "Fanuc 0i-MF v9.07" or "Fanuc 21i-TB"), I will give the exact definition and permitted values for parameter 1860.

In CNC machining, maintaining accurate position tracking on rotary axes (

Press the function key and change Parameter Write Enable (PWE) to 1 . Press the [SYSTEM] key, then the [PARAMETER] softkey. Type 1860 and press [NO. SRH] . Locate the axis you wish to change (X, Y, Z, etc.). Input the new value and press [INPUT] .

In a perfectly functioning machine, this parameter stays at "1" indefinitely. However, certain events will force it to "0," requiring a re-homing procedure:

FANUC parameter 1860 is a specific setting within the FANUC control system that relates to the machine's operation and performance. This parameter is part of a larger system of parameters that allow users to customize and fine-tune the CNC machine's behavior. Parameter 1860, in particular, is associated with the "High-speed machining" or "Advanced preview" function.

Most manufacturers set this between 20 and 100 (