Fanuc Parameter 1860 Full !full! Page

: If the backup battery for the absolute pulse coder dies, the data in Parameter 1860 may become invalid. This often results in a 300-series alarm (e.g., APC Alarm: Reference Return Required).

: It works in conjunction with Parameter 1815 , specifically bit 4 ( APZ ), which indicates whether the absolute position has been established (1 = established, 0 = not established). When to Modify Parameter 1860 fanuc parameter 1860 full

: These define the coordinate values of the 1st through 4th reference positions in the machine coordinate system. Parameter 1850 : Often confused with 1860, this is the Grid Shift : If the backup battery for the absolute

is defined as the Reference Position Shift Value on the Z-axis (or the axis to which it is assigned). In many standard Fanuc configurations (especially on lathes and machining centers with absolute encoders), Parameter 1860 holds the distance (in detection units) that the machine moves to find its Grid Point during a reference return operation. When to Modify Parameter 1860 : These define

: Sets the grid shift amount to fine-tune the zero position. Parameter 1851 : Controls backlash compensation . Safety Note

When you execute G28 X... Y... Z... , the reference point return occurs in :