Siemens SINUMERIK 840D sl Programming Manual page 449

Program code
N70 GEOAX(2, Y2)
N80 TANG(A,X,Y)
N90 TANGON(A,90)
...
Example 4: Tangential tracking with automatic optimization
Y1 is geometry axis 2.
Program code
...
N80 G0 C0
N100 F=50000
N110 G1 X1000 Y500
N120 TRAORI
N130 G642
N171 TRANS X50 Y50
N180 TANG(C,X,Y,1,,"P")
N190 TANGON(C,0,5.0,2.0)
N210 G1 X1310 Y500
N215 G1 X1420 Y500
N220 G3 X1500 Y580 I=AC(1420) J=AC(580)
N230 G1 X1500 Y760
N240 G3 X1360 Y900 I=AC(1360) J=AC(760)
N250 G1 X1000 Y900
N280 TANGOF(C)
N290 TRAFOOF
N300 M02
Further information
Defining following axis and leading axis
TANG
A coupling factor specifies the relationship between an angle change on the tangent and the
following axis. Its value is generally 1 (default).
Job Planning
Programming Manual, 03/2013, 6FC5398-2BP40-3BA1
10.1 Tangential control (TANG, TANGON, TANGOF, TLIFT, TANGDEL)
is used to define the following and leading axes.
Comment
; Y2 is the new geometry axis 2
; 2nd definition of tangential tracking.
; Activate tracking with Y2.
Comment
; Smoothing and maintaining the
; Definition, tangential
; Activating tangential tracking
Path traversing behavior
maximum permitted path
deviation:
tracking with automatic
optimization of the path
velocity.
with automatic optimization:
Smoothing distance, 5 mm
angular tolerance, 2 degrees.
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