Rockwell Automation 8520-GUM 9/Series CNC Grinder Operation and Programming Manual Documentation Set - Manual (Page 350)

Coordinate Control
Chapter 11
11-34
Example 11.13
Altering Planes for Parallel Axes
Assuming the system installer has made these assignments in AMP:
G18 -- the ZX plane
W axis -- parallel to Z axis
U axis -- parallel to X axis
Program Block Plane Selected Axis Motion
G18; selects ZX plane none
G18 U; selects ZU plane U axis moves to zero
G18 W; selects WX plane W axis moves to zero
G18 UW; selects WU plane U and W axes move to zero
This manual assumes that your system installer has selected the G18 plane
to be activated when an end-of-program block is read (M02 or M30), when
a control or E-STOP reset is performed, or when power to the control is
turned off.
Important: Any axis word in a block with plane select G-codes (G17,
G18, G19) causes axis motion on that axis. If no value is specified with
that axis word, the control assumes a value of zero or generates an error,
depending on how your system is AMPed.
This section contains the following subsections:
Topic: On Page:
Hardware Overtravels 11-36
Software Overtravels 11-36
Programmable Zone 2 (G22, G23) 11-38
Programmable Zone 3 (G22.1, G23.1) 11-40
Resetting Overtravels 11-43
Overtravels and programmable zones define areas that restrict the movable
range of the grinding wheel. The control is equipped to establish two
overtravel areas and two programmable zones as illustrated in
Figure 11.19.
11.8
Overtravels and
Programmable Zones