Fanuc Parameter 1860 Full Work [POPULAR — HACKS]

If you are setting up absolute encoders on your FANUC control, you will need to go through a specific procedure to correctly set Parameter 1860. This is not something you type in manually; it is generated by the CNC.

This setting enables machine technicians to shift the reference point electronically. This removes the need to physically move limit switches or detach motor couplings during calibration. It works alongside Parameter 1815 (which sets up absolute encoders). Together, they form the foundation of a CNC machine’s coordinate system. Complete Parameter Overview Specifications 1860 Data Type 2-word / 4-byte Signed Integer ( Long data type) Axis Dependency

This is the most serious consequence. You calculated the shift in the wrong direction. fanuc parameter 1860 full

Understanding and correctly setting Parameter 1860 is essential for ensuring that the rotary axis behaves predictably, especially when moving beyond 360° or using absolute encoders. 1. What is Parameter 1860? (Full Definition)

Defines the amount of backlash acceleration needed to reverse the torque 2. Technical Explanation: How It Works If you are setting up absolute encoders on

Parameter 1860 is likely too low. The acceleration isn't fast enough to keep up with the rapid reversal.

When performing a manual reference position return (e.g., G28 or manual ZRN): This removes the need to physically move limit

If this acceleration is too low, the axis won't recover fast enough, leaving a protrusion. If it is too high, the axis will overcompensate, causing a gouge in the opposite direction. 3. Parameter 1860 Typical Settings

If the rotary axis is showing wrong absolute positions (e.g., it is 180° off) after returning to the reference point.

By understanding and effectively utilizing FANUC parameter 1860, CNC machine users can unlock the full potential of their machines, achieving improved machining performance, reduced cycle times, and enhanced productivity.