Siemens SINUMERIK 840D Programming Manual page 290

4
Turning Cycles
4.4 Undercut cycle – CYCLE94
When _VARI<>0 the following applies:
•
The actual tool point direction is not checked, i.e. all
directions can be used if this is meaningful
technologically,
•
No special consideration is given to functions such
as adapter transformation, orientatable toolholder in
the cycle. It is assumed that the user is familiar with
the conditions on the machine and has specified the
position correctly;
•
Similarly, mirroring is not specially treated either,
the user must be responsible for making the correct
settings.
Further notes
You must activate a tool offset before you call the
cycles. Otherwise alarm
61000 "No tool offset active"
is output and the cycle is aborted.
Programming example
Undercut_form_E
You can machine an undercut of form E with this
program.
N10 T25 D3 S300 M3 G18 G95 F0.3
N20 G0 G90 Z100 X50
N30 CYCLE94 (20, 60, "E")
N40 G90 G0 Z100 X50
N50 M02
4-290
X
60
Specification of technology values
Selection of starting position
Cycle call
Approach next position
End of program
SINUMERIK 840D/840Di/810D Programming Guide Cycles (PGZ) – 11.02 Edition
4
03.96
09.01
FORM E
20
Z
© Siemens AG, 2002. All rights reserved