Contour Approach And Retraction (Norm, Kont, Kontc, Kontt) - Siemens SINUMERIK 828D Programming Manual

10.2

Contour approach and retraction (NORM, KONT, KONTC, KONTT)

Function
If tool radius compensation is active (
be used to adapt the tool's approach and retract paths to the required contour profile or
blank form.
KONTC
therefore, permissible to program a path component perpendicular to the offset plane
simultaneously.
Condition
The
has been enabled in the control.
Syntax
G41/G42 NORM/KONT/KONTC/KONTT X... Y... Z...
...
G40 X... Y... Z...
Significance
NORM
KONT
KONTC
KONTT
Note
Only
The control replaces these with polynomials for the appropriate approach/retract path.
General conditions
KONTT
CUT3DCC
error message.
Fundamentals
Programming Manual, 07/2010, 6FC5398-1BP40-0BA0
10.2 Contour approach and retraction (NORM, KONT, KONTC, KONTT)
or ensure observance of the continuity conditions in all three axes. It is,
KONTT
and commands will only be available if the "Polynomial interpolation" option
KONTC KONTT
: Activate direct approach/retraction to/from a straight line.
The tool is oriented perpendicular to the contour point.
: Activate approach/retraction with travel around the starting/end point
according to the programmed corner behavior
: Activate approach/retraction with constant curvature.
: Activate approach/retraction with constant tangent.
blocks are permissible as original approach/retraction blocks for
G1
and are not available in 3D variants of tool radius compensation (
KONTC
, ). If they are programmed, the control switches internally to
CUT3DF
/ ), the ,
G41 G42 NORM KONT
Tool radius compensation
, or command can
KONTC KONTT
or .
G450 G451
and
KONTC
CUT3DC
without an
NORM
.
KONTT
,
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