Siemens SINUMERIK 840D sl Function Manual page 1842

Detailed Description
2.4 Tool radius compensation 2D (TRC)
Special points to be noted
• KONT only differs from NORM when the tool start position is behind the contour.
Figure 2-16
• KONT and G450/G451 (corner behavior at outer corners) has a general effect and
• When tool radius compensation is deselected, the retraction behavior is determined by
54
Example for selecting TRC with KONT or NORM in front of and behind the contour
determines the approach and retraction behavior with TRC.
the NORM/KONT instructions.
Basic logic functions: Tool Offset (W1)
Function Manual, 11/2006, 6FC5397-0BP10-2BA0