Fanuc Parameter 1860 Jun 2026

FANUC parameters form the operational backbone of any CNC machine tool, and parameter 1860 is one of the most versatile and frequently misunderstood settings in the FANUC control system. This comprehensive guide explains everything you need to know about FANUC parameter 1860, including its multiple functions across different system models, how to configure it correctly, and how to troubleshoot common problems related to this critical parameter.

This occurs when the absolute pulse coder rotates while the main CNC power is off, exceeding its allowable limits or indicating a mismatch in the expected encoder configuration versus what is declared in Parameter 1860. Step-by-Step: How to Change Parameter 1860 fanuc parameter 1860

Parameter values in FANUC controls are usually entered without a decimal point. For example, a value of 10 typically represents 0.010mm (ten microns). The same convention applies to parameter 1860: the input value is interpreted according to the system's least input increment setting. FANUC parameters form the operational backbone of any

Press the SYSTEM key, type 1860 , and press No. SRH . Ensure Bit 0 is set to 1 for the axis you are fixing. Step-by-Step: How to Change Parameter 1860 Parameter values

The relationship depends on the application. In rotary axis reference point applications, parameters 1860 and 1861 work together to store reference position data. In two-stage backlash acceleration, parameter 1860 handles the first acceleration stage while other parameters manage the second stage. In coordinate rotation functions, parameter 1860 stores angle data while parameter 1861 may store scaling information.

Disclaimer: This guide provides general information about FANUC parameter 1860 based on available documentation and industry knowledge. Always refer to the official FANUC parameter manual for your specific control model before making any parameter changes. Incorrect parameter settings can cause machine damage or personal injury.