Siemens SINUMERIK 840D Programming Manual page 90

2
Drilling Cycles and Drilling Patterns
2.1 Drilling cycles
Thread with encoder
In this program a thread is tapped with encoder at
position X35 Y35 in the XY plane; the boring axis is
the Z axis. The pitch parameter must be defined,
automatic reversal of the direction of rotation is
programmed. A compensating chuck is used in
machining.
DEF INT SDR=0
DEF REAL PIT=3.5
N10 G90 G0 D2 T2 S500 M4
N20 G17 X35 Y35 Z60
N30 CYCLE840 (59, 56, , 15, , , , , , ->
->, PIT)
N40 M30
-> Must be programmed in a single block
2-90
Y
A
B
35
Definition of parameters with value
assignments
Specification of technology values
Traverse to drilling position
Cycle call, without safety distance, value
for depth programmed as an absolute
value, SDAC, ENC, MPIT are omitted
(i.e., are assigned the value zero)
End of program
SINUMERIK 840D/840Di/810D Programming Guide Cycles (PGZ) – 11.02 Edition
2
03.96
Y A - B
X
Z
15
56
© Siemens AG, 2002. All rights reserved