Fanuc Parameter 1860 File
| Parameter | Function |
|-----------|----------|
| 1850 | Spindle orientation shift amount (offset) – static zero-point |
| 1860 | Orientation gain (stiffness) – dynamic response |
| 1861 | Orientation acceleration/deceleration time constant |
| 1862 | Orientation completion width (in position check) |
In summary: 1850 sets where the spindle stops; 1860 sets how firmly it holds that stop position.
Configuring parameter 1860 involves setting a scaling factor for the feed rate. The parameter is usually a numerical value that represents a percentage of the programmed feed rate. For example, setting parameter 1860 to 100% means the actual feed rate will be the same as the programmed feed rate. Setting it to 50% would halve the feed rate, while 200% would double it. fanuc parameter 1860
The specific steps to set parameter 1860 can vary slightly depending on the FANUC CNC system model. Generally, the process involves:
In simple terms, Parameter 1860 sets the "Time Constant" for the acceleration and deceleration of rapid traverse (rapid moves). | Parameter | Function | |-----------|----------| | 1850
When a CNC machine commands a rapid move (G00), the axis cannot instantly jump from zero to maximum speed. It must accelerate to that speed and then decelerate to a stop. The shape of this speed curve is determined by the Time Constant.
Parameter 1860 tells the CNC control how many milliseconds (ms) it should take for the axis to complete the acceleration or deceleration phase during a rapid move. Configuring parameter 1860 involves setting a scaling factor
Locate the Parameter:
Analyze the Value:
Adjust:
Lock and Test:
Many machinists confuse these two. Here is a simple memory aid:
Never use 1860 to compensate for a misaligned mechanical zero. That is what 1850 is for. Incorrectly raising 1860 to force alignment will only lead to erratic behavior and possible drive failure.
If 1860 is set equal to or higher than the rapid speed of that axis, the control will not decelerate properly. The axis may overshoot the dog, fail to find the marker, and trigger alarm PS0090 (Reference return incomplete) or PS0091 (Zero point not found).
