HEIDENHAIN TNC 640 User Manual page 282

7
Radius compensation
The radius compensation must be in the block in which you
move to the first contour element. You cannot activate radius
compensation in a circle block. It must be activated beforehand in a
straight-line block.
Further information:
page 294
Pre-positioning
Danger of collision!
The control does not automatically check whether collisions
can occur between the tool and the workpiece. Incorrect pre-
positioning can also lead to contour damage. There is danger of
collision during the approach movement!
Program a suitable pre-position
Check the sequence and contour with the aid of the graphic
simulation
282
"Path contours Cartesian coordinates",
NOTICE
Programming Contours | Fundamentals of path functions
HEIDENHAIN | TNC 640 | ISO Programming User's Manual | 10/2017