Siemens SINUMERIK 840D sl Programming Manual page 525

G972 12.
G973 13
Group 16: Feedrate override on inside and outside curvature
G function
1)
No.
CFC 1.
CFTCP 2.
CFIN 3.
Group 17: Approach and retraction response, tool offset
G function
1)
No.
NORM 1.
KONT 2.
KONTT 3.
KONTC 4.
Group 18: Corner behavior, tool offset
G function
1)
No.
G450 1.
G451 2.
Group 19: Curve transition at beginning of spline
G function
1)
No.
BNAT 1.
BTAN 2.
BAUTO 3.
Fundamentals
Programming Manual, 09/2011, 6FC5398-1BP40-2BA0
Freeze linear feedrate or revolutional feedrate and
constant cutting rate
Revolutional feedrate without spindle speed limitation
(G97 without LIMS for ISO mode)
Significance
Constant feedrate at contour effective for internal and
external radius
Constant feedrate in tool center point (center point
path)
Constant feedrate for internal radius only, acceleration
for external radius
Significance
Normal position at starting and end points
Travel around contour at starting and end points
Approach/retraction with constant tangent
Approach/retraction with constant curvature
Significance
Transition circle
(tool travels around workpiece corners on a circular
path)
Intersection of equidistant paths
(tool backs off from the workpiece corner)
Significance
Natural transition to first spline block
Tangential transition to first spline block
Definition of the first spline section by means of the
next 3 points
16.4 G function groups
+ m
+ m
2) 3)
MD20150 W
+ m
+ m
+ m
2) 3)
MD20150 W
+ m
+ m
+ m
+ m
2) 3)
MD20150 W
+ m
+ m
2) 3)
MD20150 W
+ m
+ m
+ m
Tables
4)
STD
SAG MM
x
4)
STD
SAG MM
x
4)
STD
SAG MM
x
4)
STD
SAG MM
x
525