Siemens SINUMERIK 840D sl Function Manual page 960

Tool Change (W3)
17.8 Examples
Figure 17-1
t :
1
t :
2
t :
3
t :
4
t :
5
Then, in N1000 of the calling main program:
● The new tool offset can be selected
● the axes can be returned to the contour, or
● the spindle can be accelerated.
960
Chronological sequence of tool change
Axes stationary.
Spindle rotates.
Start of tool change cycle in N10.
Move axes to tool change point with G75 in N20.
Spindle reaches programmed position from block N10.
Axes reach exact stop coarse from N20; N30 thus begins:
M06 removes the previous tool from the spindle and loads and clamps the new tool.
Tool changer swivels back to original position.
Function Manual, 01/2008, 6FC5397-1BP10-3BA0
Extended Functions