Rockwell Automation 8520-ARM2 9/Series CNC AMP Reference Manual Documentation Set - Manual (Page 130)

Zone/Overtravel Parameters
Chapter 6
6-4
The size and location of this zone are determined in AMP or on the
control.
Zone 3 defines either an interior zone (tool must stay within zone
boundaries) or an exterior zone (tool must stay outside of the zone
boundaries). This zone is enabled or disabled by part program commands.
The size and location of this zone is determined in AMP, on the control, or
through programming commands.
Programmable zones can check: where:
each axis independently the tool cannot move past the coordinate value
set for an axis
axes simultaneously the coordinate values set for each axis define an
area that the tool may not move into or out of
These subsections offer a discussion on the parameters that are used for the
programmable zones.
Subsection: Page:
Programmable Zone Group Axis 6-5
Number of Limit 2, 3 Groups 6-8
Limit 2 Max Value 6-9
Limit 2 Min Value 6-10
Limit 3 Max Value 6-11
Limit 3 Min Value 6-12
On dual processing controls that have a shared axis, zone values are per
axis, not per process. You can only enter one set of min and max values
for each zone for a shared axis. These values are used in the zone in both
processes.
On angled wheel grinders that have a virtual axis, the values you enter here
are applied to the real wheel axis. You can not enter values in AMP for the
virtual axis. When the control enters angled wheel mode (G16.3 or G16.4)
the control performs a calculation on the W axis values based on the
current angle of the wheel axis. This calculated value is applied to the
virtual X axis to create the zone in angled wheel mode. The calculation
performed to get the virtual axis values is:
X zone value = (COS A)(W zone value)
Where:
A = wheel axis angle
W = min or max W axis zone value