Siemens SINUMERIK 840Di Function Manual page 107

Fig. 2-13
Toolrelated protection zones must be convex. If a concave protection zone is required, the
protection zone must be divided up into several convex protection zones.
Fig. 2-14
Contour elements
The following contour elements are permissible:
• G0, G1 for straight contour elements
• G2 for circle segments in the clockwise direction
• G3 for circular segments in the counterclockwise direction
Axis Monitoring, Protection Zones (A3)
Function Manual, 08/2005 Edition, 6FC5397-0BP10-0BA0
Examples: External and internal protection zone
Examples: Convex and concave tool-related protection zones
Permissible only for workpiece-related protection zones.
Not permissible for tool-related protection zones because they must be convex.
Detailed Description
2.4 Protection zones
2-35