Operating manual
13.3.2 Configuring and executing the circularity (roundness) test
The process consists in executing a circle with the axes of the machine and verifying it on its graphic representation. The graphic shows the difference between the actual (real) coordinate obtained from the feedback device and the theoretical coordinate calculated in that point. This difference is shown projected radially.
The interpolation of the machine axes and the point capture for the graphics are initiated separately. The data capture is handled from the softkey menu whereas the movement of the axes is controlled from the operator panel.
The adjustment process is repeated until obtaining the best adjustment of the axes. The circularity (roundness) test diagram is an assistance tool that only shows the response of the system to the various settings (adjustments); it is up to the technician to choose the best adjustment.
How to execute the circularity (roundness) test
Basically it is done as follows. Each of these points is described in more detail in the indicated chapter.
The configuration used may be saved in a file for later.
1.Before initiating the process, certain aspects must be configured as well as the graphic environment, the circular interpolation, the values of the parameters involved, etc. See "13.1.4 Machine parameter editing" on page 277.
A previously saved configuration may be used.
2.Execute a circular interpolation of the machine axes. The axes must be moving before the data capture starts. See "13.3.4 Define and execute the movement subroutine" on page 291.
3.Initiate the data capture and the graphic simulation. Once the axes are moving, the data capture for the graphics may begin. While capturing data, the position error at each point is drawn on the graphics. See "13.3.5 Data capture for the graphic" on page 292.
4.Optimize the adjustment by changing some machine parameters of the CNC or of the drive. This makes it possible to evaluate the system response to these changes and optimize the adjustment. See "13.3.6 Adjustment of the machine parameters involved" on page 293.
5.Save the modified values and the configuration used. See "13.3.7 Validate the changes and save the configuration used" on page 295.
Move through the data
To enter or modify a data, it must be selected; i.e. it must have the editing focus on it. To select a data, use the [§][¨][©][ª] keys.
The data are accepted with the [ENTER] key. Before accepting a data, it is checked out and if the data is not correct, it is not accepted.
13.
SETUP ASSISTANCE | circularity (roundness) test |
| The |
CNC 8070
(SOFT V03.0X)
289
