Siemens Sinumerik 802D sl Programming Manual page 91

04.07
Cutting cycle commands
The cutting cycle is used for outside diameter (OD) cutting and has two kinds of
cycles – straight cutting cycle and taper cutting cycle.
Straight cutting cycle
Format
G.. X... Z... F... ;
G code system A
With the commands of "G... X(U)... Z(W)... F... ;", straight cutting cycle is executed
as indicated by sequence 1 to 4 shown in Fig. 4-1.
Fig. 4-1
Since G77 (G90, G20) is a modal G code, cycle operation is executed by simply
specifying in-feed movement in the X-axis direction in the succeeding blocks.
© SIEMENS AG 2007 All rights reserved
SINUMERIK 802D sl/840D sl840D/840Di sl/840Di/810D ISO Turning -- 04.07 Edition
G code system B
G90
+X
Z W
C 4
3
2
B
Straight cutting cycle
Enhanced Level Commands
4.1 Program support functions (1)
G77
Rapid traverse
A
Feed designated by F code
U
1
2
A'
X
2
+Z
G code system C
G20
4-91