The parameter is systematically locked and calculated exclusively by the CNC.
: 2-word axis (Long Word / 32-bit signed integer per axis) Input Type : Locked Parameter (System Internal)
Modifying CNC parameters can have serious consequences. Follow these guidelines to protect both personnel and equipment. fanuc parameter 1860 full
Fine-tunes the physical zero point relative to the encoder reference pulse once 1860 updates the system. 3. Step-by-Step Procedure to View and Modify Parameter 1860
If Parameter 1860 is set incorrectly (e.g., after a servo swap or battery backup loss), the following issues will occur: Fine-tunes the physical zero point relative to the
The truth is that . Unlike a simple ON/OFF switch, its behavior changes depending on which optional functions are active on your specific controller. This guide serves as a complete reference for Parameter 1860, covering its various functions, how to set it, and how to troubleshoot it across different FANUC Series (0i, 16i, 18i, 21i, 30i).
[Absolute PulseCoder] ──(Grid/Reference Link)──> [CNC Calculates Offset] ──> Automatically Writes to Parameter 1860 Unlike a simple ON/OFF switch, its behavior changes
Press the function key and change Parameter Write Enable (PWE) to 1 . Press the [SYSTEM] key, then the [PARAMETER] softkey. Type 1860 and press [NO. SRH] . Locate the axis you wish to change (X, Y, Z, etc.). Input the new value and press [INPUT] .
This article provides a full technical breakdown of Parameter 1860—its function, its relationship with other parameters, how to calculate it, common troubleshooting scenarios, and best practices for optimization.
It is part of the servo backlash compensation system. Its primary purpose is to address or "blips" that occur when a machine axis reverses direction. When an axis moves from a negative to a positive direction (or vice versa), there is a momentary loss of control due to mechanical gaps (backlash). Parameter 1860 provides a quick burst of acceleration during this reversal to bridge that gap instantly, minimizing the protrusion in the machined workpiece. Key Details: Parameter Number: 1860 Function: Stage 1 Backlash Acceleration Amount (%) Unit of Data: Percentage (%)
Where: