Siemens Sinumerik 840D sl Programming Manual page 63

Detection of bottlenecks
As the selected tool radius for machining this inside contour is too big, the bottlenecks are
bypassed. An alarm is output.
Figure 3-17
Contour definition shorter than tool radius
The tool traverses the tool angle on a transition circle and then follows exactly the
programmed contour.
Figure 3-18
ISO Milling
Programming Manual, 06/09, 6FC5398-7BP10-1BA0
Detection of bottlenecks
Contour definition shorter than tool radius
Motion commands
3.4 Tool offset functions
63