Collision Monitoring (Cdon, Cdof, Cdof2) - Siemens SINUMERIK 840Di sl Programming Manual

Tool offsets

8.12 Collision monitoring (CDON, CDOF, CDOF2)

8.12 Collision monitoring (CDON, CDOF, CDOF2)
Function
When CDON (Collision Detection ON) and tool radius compensation are active, the control
monitors the tool paths with Look Ahead contour calculation. This Look Ahead function
allows possible collisions to be detected in advance and permits the control to actively avoid
them.
When collision detection is off (CDOF), a search is made at inside corners in the previous
traversing block (and if necessary in blocks further back) for a common intersection point for
the current block. If no intersection is found with this method, an error is generated.
Programming
CDON
Or
CDOF
Or
CDOF2
Parameters
CDON
CDOF
CDOF2
382
Activate bottleneck detection
Deactivate bottleneck detection
Determine tool offset direction from adjacent block parts.
CDOF2 is active only for 3D circumferential milling.
Programming Manual, 11/2006, 6FC5398-1BP10-2BA0
Fundamentals