Fanuc Parameter 1860 | 2024 |

Do not change Parameter 1860 to 1 unless you are certain your motor features an absolute encoder and a functional battery backup cable layout.

For changes to Parameter 1860 to take physical effect in the servo system, you must (Cycle Power). Summary of Best Practices

This bit tells the system if the reference position (zero point) has been established. When you set the home position manually, the system updates Parameter 1860 with the current coordinate and then automatically flips the APZ bit to "1" to confirm the zero point is set. en.industryarena.com When to Modify or Check Parameter 1860 Losing Home Position:

If you are using a scale that does not hold speed data. This prevents the system from attempting to update the position based on faulty or missing speed data during reference return. fanuc parameter 1860

Fanuc stores the current position data of the absolute pulse coder (APC) for each axis.

Before making any modifications, ensure you have a complete backup of all CNC parameters. This allows quick restoration if problems arise.

This alarm indicates that the absolute position has been lost, and the axis needs a Zero Return (ZRN). If Parameter 1860 is set correctly but the battery died, will automatically drop to 0 , triggering this alarm. 2. Alarm 306 to 308 (APC Battery Zero / Low) Do not change Parameter 1860 to 1 unless

First, ensure mechanical freedom (check belt, bearings, drawbar). Then increase 1860 gradually.

Understanding Fanuc Parameter 1860: The Key to Absolute Position Data

: Navigate to the SETTING screen and set PARAMETER WRITE (PWE) to 1. When you set the home position manually, the

| Parameter | Function | |-----------|----------| | 1850 | Spindle orientation shift amount (offset) – static zero-point | | | Orientation gain (stiffness) – dynamic response | | 1861 | Orientation acceleration/deceleration time constant | | 1862 | Orientation completion width (in position check) |

Look at the row corresponding to the axis you need to modify (X, Y, Z, etc.).

By mastering Fanuc parameter 1860 and other CNC-related topics, you can take your machining skills to the next level and achieve exceptional results.