Rockwell Automation 8520-GUM 9/Series CNC Grinder Operation and Programming Manual Documentation Set - Manual (Page 351)

Chapter 11
Coordinate Control
11-35
Figure 11.19
Overtravel Areas and Programmable Zones
Z axis travel
Limit switch
Hardware
overtravel
Software
overtravel
Programmable
zone 3
Programmable
zone 2
Grinding
wheel
Limit switch
Limit switch
X axis
travel
Limit switch
12021-I
Two types of overtravels are available:
Hardware overtravels ---- Established by your system installer by
mounting mechanical limit switches on the movable range of the axes.
Software overtravels ---- Established in AMP by your system installer
by assigning coordinate values in the machine coordinate system.
Two types of Programmable Zones are available:
Programmable Zone 2 ---- Established by the operator, or person in
charge of job setup. The machine coordinate system boundaries for this
zone are entered in a table. Programmable zones are turned on and off
in the part program.
Programmable Zone 3 ---- Established by the operator, programmer, or
person in charge of job setup. The machine coordinate system
boundaries for this zone are entered in a table or through
programming. Programmable zones are turned on and off in the part
program.