Work: Fanuc Parameter 1860

The scaling factor set by parameter 1860 affects how the machine's control system interprets the position feedback data. A scaling factor of 1, for example, means that the machine will move exactly one unit (e.g., millimeter or inch) for every unit of feedback received. By adjusting this parameter, users can effectively change the machine's movement ratio, allowing for more precise control over the machining process.

If you are consistently having issues with servo alarms or poor surface finishes, If you want, I can:

bit in Parameter 1815 is set to 1, the system uses Parameter 1860 to track where the machine is, even after power is turned off.

If you change Parameter 2022 because a machine axis is physically moving left instead of right, you also change Parameter 1860.

When a CNC machine executes a command to move an axis, the control system needs to know whether the encoder signal returning from the motor or linear scale aligns with the command. Setting Parameter 1860 correctly prevents the system from misinterpreting its own location, which would otherwise result in catastrophic servo alarms or runaway axes. The Core Function of Parameter 1860 fanuc parameter 1860 work

If the current value inside Parameter 1860 for the Z-axis is 1250 , the new calculated input is: 1250+152=14021250 plus 152 equals 1402 Step 4: Input Data and Cycle Power

In FANUC CNC systems, Parameter 1860 specifically used to define the current absolute position of an axis when using an absolute pulse coder

Most standard Fanuc motors use rotary encoders. The parameter is often related to the number of pulses per revolution and the ball screw pitch.

Parameter 1860 functions as a digital bridge between the mechanical "Machine Zero" and the electrical "Grid Zero" detected by the absolute encoder. Grid Shift Mechanism The scaling factor set by parameter 1860 affects

Step-by-step instructions for manual FSSB initialization can be found at Are you trying to add a new axis to your machine, or are you troubleshooting a specific FSSB alarm PARAMETER MANUAL

This public link is valid for 7 days and shares a thread, including any personal information you added. This link or copies made by others cannot be deleted. If you share with third parties, their policies apply. Can’t copy the link right now. Try again later.

Parameter 1860 cannot be looked at in isolation. It operates as part of a matrix of parameters that define axis direction, feedback scaling, and loop stability. 1. Parameter 2022 (Motor Rotation Direction)

When working with parameter 1860, keep in mind: If you are consistently having issues with servo

Parameter 1860, along with its counterpart , defines the reference position for each axis. When an absolute encoder is used, the CNC must know the offset between the encoder's "internal zero" and the physical machine zero.

While 1860 handles the machine's "foundation" coordinates, operators use different tools for daily job setups:

To understand how Parameter 1860 functions, it helps to understand how a Fanuc absolute encoder establishes a reference point.

Parameter 1860 does not work in isolation. Adjusting a machine’s physical home or tracking reference requires a synchronized understanding of several interconnected parameters: Parameter Number Function Name Technical Interdependence with 1860 APC / APZ Configuration

This is the most common result. The CNC commands a small move, the feedback goes the wrong way, the error grows exponentially, and the system trips the alarm to prevent a crash.