Siemens Sinumerik 840D Operating Turning page 121

Program jumps and deletion blocks
The following example is used to illustrate the usage of optional blocks:
Studs with a thread size M24 are to be produced, some of which have a
thread relief as per DIN 76-A. You will now create a single program and
manipulate the machining using the optional block technique.
Stud with thread relief
Program section without roughing
N130 T2
N140 G96 S200 F0.15 M4 D1
N150 G00 G42 X14 Z2.5 M8
N160 G01 X24 Z-2.5
N170 Z-30
N180 X32
N190 G00 G40 Z2
/N200 CYCLE96(24,-30,"A",3)
N210 G00 X200 Z300
N220 T4
N230 G97 S1500 M3 M8 D1
N240 CYCLE97(3,24,0,-27,24,24,10,2,1.84,0.03,30,0,6,3,3,1,2)
N250 G00 X200 Z300
N260 M30
Stud without a thread relief
840D/828D SINUMERIK Operate
The function "Skip block" is de-
activated; optional blocks will be
executed.
Block N200 will be executed.
; Finishing tool
; Finishing
; Optional block thread relief
; Thread cutting tool
The function "Skip block" is acti-
vated; optional blocks will not be
executed.
Block N200 is not executed.
Page 5
Section 2
Notes
B509
B509