Rockwell Automation 8520 9/Series CNC Lathe - Manual (Page 331)

Chapter 12
Overtravels and Programmable Zones
12-3
The coordinate values of the points defining the software overtravels are
set in AMP by your system installer. This overtravel can only be disabled
by your system installer in AMP. If your system installer has enabled the
software overtravels, the control is not allowed to exit the area defined by
the software overtravels.
Figure 12.2
Software Overtravels Established in AMP
Hardware
overtravel
Absolute position is prohibited
from entering the software
overtravel (no offsets considered)
Software
overtravel
Entry into this
area is prohibited by
the software overtravel
Cutting
tool
Your system installer selects values that represent a maximum and a
minimum value in the form of coordinate values for each axis. These
coordinate values define points on the machine coordinate system. The
axes are not allowed to move past the coordinate value representing the
maximum and minimum value on each axis. This limited range of motion
is referred to as the software overtravels.
12.2
Software Overtravels