Siemens Sinumerik 802D sl Programming Manual page 95

04.07
Example of programming
N30 G00 X80. Z76.2 Mxx;
N31 G78 X66.4 Z25.4 F6. ;
N32 X65. ;
N33 X63.8 ;
N34 X62.64 ;
N35 G00 X100. Z100. Myy;
+X
Fig. 4-7
S When the G78 (G92, G21) cycle is executed with the single block function ON,
the cycle is not suspended halfway, but it stops after the completion of the cycle
consisting of sequence 1 to 4.
S Thread chamfering can be performed in this thread cutting cycle. A signal from
the machine tool initiates thread chamfering. Thread chamfering size γ can be
set for GUD7 _ZSFI[26] in increments of 0.1L . Here, "L" represents the speci-
fied thread lead.
It is recommended to program the sequence that turns ON and OFF the "thread
chamfering input" by using appropriate M codes.
© SIEMENS AG 2007 All rights reserved
SINUMERIK 802D sl/840D sl840D/840Di sl/840Di/810D ISO Turning -- 04.07 Edition
∅62.64
6.
25.4
76.2
Straight thread cutting cycle (G code system B)
Enhanced Level Commands
4.1 Program support functions (1)
Mxx; Thread chamfering ON
Thread cutting cycle, in four in-feeds
Myy; Thread chamfering OFF
Depth of cut
1st in-feed:
2nd in-feed:
3rd in-feed:
4th in-feed:
+Z
1.8 mm
0.7 mm
0.6 mm
0.58 mm
4-95