Siemens SINUMERIK 840Di sl Programming Manual page 110

Positional Data
3.8 Working area limitation in BCS (G25/G26, WALIMON, WALIMOF)
Example of turning
Using the working area limitation G25/26, the working area of a lathe is limited so that the
surrounding devices and equipment - such as revolver, measuring station etc. - are
protected against damage.
Default setting: WALIMON
N10 G0 G90 F0.5 T1
N20 G25 X-80 Z30
N30 G26 X80 Z330
N40 L22
N50 G0 G90 Z102 T2
N60 X0
N70 WALIMOF
N80 G1 Z-2 F0.5
N90 G0 Z200
N100 WALIMON
N110 X70 M30
Description
Reference point at the tool
When tool length compensation is active, the tip of the tool is monitored as reference point,
otherwise it is the toolholder reference point.
Consideration of the tool radius must be activated separately. This is done using channel-
specific machine data:
MD21020 $MC_WORKAREA_WITH_TOOL_RADIUS
If the tool reference point lies outside the working area defined by the working area limitation
or if this area is left, the program sequence is stopped.
110
;Define the lower limit for
;the individual coordinate axes
;Define the upper limit
;Cutting program
;To tool change location
;Deactivate working area limitation
;Drill
;Back
;Activate working area limitation
;End of program
Programming Manual, 11/2006, 6FC5398-1BP10-2BA0
Fundamentals