Siemens SINUMERIK 840D sl Programming Manual page 389

The working area limitation for all validated axes must be programmed with the WALIMON
command. The WALIMOF command deactivates the working area limitation. WALIMON is the
default setting. Therefore, it only has to be programmed if the working area limitation has
been disabled beforehand.
Syntax
G25 X...Y...Z...
G26 X...Y...Z...
WALIMON
WALIMOF
Meaning
G25:
G26:
X... Y... Z...:
WALIMON:
WALIMOF:
In addition to programming values using G25/G26, values can also be entered using axis-
specific setting data:
SD43420 $SA_WORKAREA_LIMIT_PLUS (Working area limitation plus)
SD43430 $SA_WORKAREA_LIMIT_MINUS (Working area limitation minus)
Activating and de-activating the working area limitation, parameterized using SD43420 and
SD43430, are carried-out for a specific direction using the axis-specific setting data that
becomes immediately effective:
SD43400 $SA_WORKAREA_PLUS_ENABLE (Working area limitation active in the positive
direction)
SD43410 $SA_WORKAREA_MINUS_ENABLE (Working area limitation active in the negative
direction)
Using the direction-specific activation/de-activation, it is possible to limit the working range for
an axis in just one direction.
Note
The programmed working area limitation, programmed with G25/G26, has priority and
overwrites the values entered in SD43420 and SD43430.
Fundamentals
Programming Manual, 09/2011, 6FC5398-1BP40-2BA0
Lower working area limitation
Assignment of values in channel axes in the basic coordinate system
Upper working area limitation
Assignment of values in channel axes in the basic coordinate system
Lower or upper working area limits for individual channel axes
The limits specified refer to the basic coordinate system.
Switch working area limitation on for all axes
Switch working area limitation off for all axes
Supplementary commands
14.3 Working area limitation
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