Fanuc Parameter 1860 Full [portable]

If you have lost your reference position due to dead batteries (accompanied by APC alarms), follow this standard procedure instead of editing 1860 directly: Phase 1: Enable Parameter Writing Switch the CNC machine to . Press the OFFSET/SETTING function key.

On systems equipped with (such as a C-axis on a lathe or an A-axis on a milling machine), the CNC needs to manage coordinate values when the axis moves across the 0-degree position or when the machine coordinate rounding value reaches the limit set by Parameter No. 1260. This is where Parameter 1815 and Parameter 1860 work together:

| Machine Type | Typical 1860 Value (mm/min) | Reason | |--------------|-----------------------------|--------| | Small milling | 500 – 2000 | Short deceleration zone, slower dog approach | | Large lathe | 2000 – 6000 | Heavy axis, needs consistent dog capture | | High-speed machining center | 1000 – 4000 | Balanced speed vs. repeatability | | Grinder | 200 – 1000 | Very fine reference accuracy required | fanuc parameter 1860 full

For most standard CNC lathes and mills using Ball Screws and Flexible Couplings (direct drive or near 1:1 gear ratio):

$$ 1860 = \frac\textGear Ratio (Motor to Ball Screw) \times \textReference Counter (1821)\textFeed Gear Ratio $$ If you have lost your reference position due

In the world of CNC machining, precision is everything. A misalignment of just 0.001 inches can scrap a part costing thousands of dollars. Among the hundreds of system parameters that control a Fanuc CNC controller, often stands out as both a powerful tool and a potential hazard.

While you do not change Parameter 1860 directly, you will often find it referenced when diagnosing specific machine tool failures. 1. APC Battery Death Alarms A misalignment of just 0

Parameter 1860 is mathematically linked to .

Photograph the parameter screen for 1860, 1850, 1851, and 1815 (APC/APZ settings).

If the absolute encoder battery dies, the machine loses its zero position. After replacing the battery, you must re-establish machine zero. Parameter 1860 allows you to "tell" the control where the new zero is relative to the mechanical hard stops.