, cycle power, move to the physical home, and set it back to
If you disconnect the motor from the ball screw, the physical relationship between the encoder and the machine zero changes. fanuc parameter 1860 full
Users searching for "1860" in the context of or home positions are often actually looking for Parameter 1815 , which is critical for resetting axis reference positions. , cycle power, move to the physical home,
On long-travel axes (e.g. 4m+ gantry), the inertia may cause the axis to overshoot the deceleration zone. If the grid point falls beyond the P1860 window, an alarm triggers. Increasing P1860 resolves this. 4m+ gantry), the inertia may cause the axis
Yes. G28 returns to the reference position defined by parameters including 1860. G30 (2nd, 3rd, 4th reference return) uses different parameters (e.g., 1861, 1862).
| Machine Type | Rigidity | Typical 1860 Range (ms) | | :--- | :--- | :--- | | Small VMC (BT30) | High | 30–60 | | Large VMC (BT40/BT50) | Medium | 60–120 | | Heavy-duty lathe (X-axis) | Medium | 80–150 | | Gantry mill (heavy slide) | Low | 120–250 | | High-speed machining center | Very High | 10–40 |
