Siemens SINUMERIK 840D sl Operating Manual page 112

Setting up the machine
4.6 Measuring the workpiece zero
...
Rectangular
spigot
1 spigot
2 spigots
3 spigots
4 spigots
112
4. Press the <CYCLE START> key.
This starts the automatic measuring process. The tool automatically
measures four points in succession around the rectangular or spigot outer
wall or the outer wall of the first spigot if several spigots are to be meas‐
ured.
After the measurement has been successfully completed, the center of
the spigot is determined and the "P1 stored" softkey becomes active.
5. If you are measuring several spigots, then move the tool approximately
to the center of the second, third, and fourth spigot and press the <CYCLE
START> key.
After the measurement has been successfully completed, P2, P3 and P4
are stored and the softkeys "P2 stored", "P3 stored", and "P4 stored"
become active.
6. Press the "Calculate" or "Set WO" softkey.
The length, width, and center point of the rectangular spigot are calcula‐
ted and displayed.
For "Set WO", the setpoint position of the center point is stored as new
zero point. The tool radius is automatically included in the calculation.
The diameter and center point of the spigot are calculated and displayed.
For "Set WO", the setpoint position of the center point is stored as new
zero point. The tool radius is automatically included in the calculation.
The angle between the line connecting the center points and the refer‐
ence axis is calculated and displayed.
For "Set WO", the center point of the first spigot now corresponds to the
position setpoint. The calculated rotation is stored in the work offset.
The center point and the diameter of the circle on which the three spigot
center points lie are calculated and displayed. If you have selected "Yes"
in "Coor. rot.", angle α is additionally calculated and displayed.
For "Set WO", the center point of the circle now corresponds to the posi‐
tion setpoint. The calculated rotation is stored in the work offset.
The spigot center points are connected diagonally and the intersection
point of the two connecting lines calculated and displayed. If you have
selected "Yes" in "Coor. rot.", angle α is additionally calculated and dis‐
played.
For "Set WO", the intersection point now corresponds to the position set‐
point. The calculated rotation is stored in the work offset.
Operating Manual, 05/2017, A5E40868956
Milling