FANUC Series 16/18/160/180-Model C for Lathe Operator Manual

PROGRAMMING
B–62754EN/01
14. FUNCTIONS TO SIMPLIFY
PROGRAMMING
147
G90X(U)__ Z(W)__ R__ F__ ;
X axis
R
2(F)
RRapid traverse
FSpecified by F code
3(F)
X/2
4(R)
Z
U/2
1(R)
W
Z axis
Fig. 14.1.1 (b) Taper Cutting Cycle
In incremental programming, the relationship between the signs of the
numbers following address U, W, and R, and the tool paths are as follows:
1. U<0,W<0,R<0
X
2. U>0,W<0,R>0
Z
U/2
3(F)
4(R)
1(R)
2(F)
W
X
Z
U/2
3(F)
4(R)
2(F)
W
1(R)
3. U<0,W<0,R> 0
at | R | x | |
X
Z
4. U>0,W<0,R<0
at | R | x | |
X
Z
W
W
2(F)
2(F)
U/2
U/2
3(F)
3(F)
4(R)
4(R)
1(R)
1(R)
U
2
U
2
R
R
R
R
D Taper cutting cycle
D Signs of numbers
specified in the taper
cutting cycle

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