Siemens SINUMERIK 840D sl Programming Manual page 128

Flexible NC programming
1.14 Interrupt routine (ASUB)
<value>
<NAME>
LIFTFAST
ALF=...
Supplementary conditions
Behavior for active frame with mirroring
When determining the retraction direction, a check is performed to see whether a frame with
mirror is active. In this case, for the retraction direction, right and left are interchanged
referred to the tangential direction. The direction components in tool direction are not
mirrored. This behavior is activated with using the MD setting:
MD21202 $MC_LIFTFAST_WITH_MIRROR = TRUE
Example
A broken tool should be automatically replaced by a daughter tool. Machining is then
continued with the new tool.
Main program:
Main program
N10 SETINT(1) PRIO=1 W_WECHS LIFTFAST
N20 G0 Z100 G17 T1 ALF=7 D1
N30 G0 X-5 Y-22 Z2 M3 S300
N40 Z-7
N50 G41 G1 X16 Y16 F200
N60 Y35
N70 X53 Y65
N90 X71.5 Y16
N100 X16
N110 G40 G0 Z100 M30
128
: Priority value
Range of values:
Priority 1 corresponds to the highest priority.
: Name of the subprogram (interrupt routine) that is to be executed.
: Command: Fast retraction from the contour
: Command: Programmable traverse direction (in motion block)
Regarding the possibilities of programming with
"Traversing direction for fast retraction from the contour (Page 129)".
1 ... 128
Comment
; When input 1 is switched, the tool
is immediately retracted from the
contour with fast retraction (code
No. 7 for tool radius compensation
G41). Then interrupt routine
"W_WECHS" is executed.
Programming Manual, 03/2013, 6FC5398-2BP40-3BA1
, refer to the subject
ALF
Job Planning