Rockwell Automation 8520 9/Series CNC Lathe - Manual (Page 333)

Chapter 12
Overtravels and Programmable Zones
12-5
Programmable zone 2 defines an area which the tool cannot enter.
Generally, zones are used to protect some vital area of the machine or part
located within the software overtravels.
Important: Programmable zones are defined using coordinates in the
machine coordinate system. They are not affected by any changes in the
work coordinate system, including external offsets.
WARNING: Programmable zones only protect the tool tip
from entering the zone (as determined with the currently active
tool length offset). They do not protect other moving members
from collision with objects in the programmable zone’s
boundary.
Values for programmable zone 2 are entered in the programmable zone
tables as described on page NO TAG. These values represent a maximum
and a minimum value in the form of machine coordinate values for each
axis. The area defined by these points establishes the boundaries for
programmable zone 2.
Figure 12.4
Area Defining Programmable Zone 2
Programmable Zone 2
as defined by minimum
and maximum axis values
Machine
coordinate
zero
Min Z
value
Max Z
value
Z
X
Min X
value
Max X
value
Important: When changing a tool offset or activating a programmable
zone 2, the current tool tip location must be outside of the area defined by
programmable zone 2.
12.3
Programmable Zone 2