Fanuc Parameter 1860 ((new)) Jun 2026

The reference position (Parameter No. 1860/1861) is not updated during homing. 2. When to Change Parameter 1860

To understand Parameter 1860, you must visualize the control hierarchy:

controls the behavior of reference position updating when machine coordinates pass a specified threshold on a rotational axis. Managing coordinates accurately is a critical part of maintaining precise CNC machining parameters . It plays an essential role in configuring absolute position encoders, managing scale feedback systems, and ensuring proper coordinate rounding.

For more information on Fanuc parameter 1860 and other CNC-related topics, check out the following resources: fanuc parameter 1860

What are you working on (e.g., a rotary table or a linear scale)?

Increase 1860 by 200-300 units incrementally while listening for mechanical compliance during a manual tool change.

: She flipped the APZ bit back to 1 . The machine took a "snapshot" of its current state, linking the physical position to its internal digital map. The Lesson Learned The reference position (Parameter No

To change 1860, you must be in MDI mode with "Parameter Write Enable" (PWE) set to 1. Step-by-Step Adjustment Guide

Set 1860 to a low value (e.g., 500).

Disclaimer: Modifying FANUC parameters can drastically alter machine behavior. Always back up your parameters before making changes, and clear the workspace of tools and fixtures before testing. Step 1: Enable Parameter Writing (PWE) Press the mode button on your operator panel. Press the OFFSET/SETTING hard key. Press the SETTING softkey. When to Change Parameter 1860 To understand Parameter

To access and adjust parameter 1860, you will need to navigate to the parameter menu on your Fanuc control system. The exact steps may vary depending on the specific control system model and version you are using. Typically, you will need to:

After making changes, you must verify the results. For rotary axis reference point settings: