Rockwell Automation 8520 9/Series CNC Lathe User Manual
Page 338
Overtravels and Programmable Zones
Chapter 12
12-10
If you program other commands other than a G-code in the same modal
group in a G22, G22.1, G23, or G23.1 block, this error message appears:
“UNNECESSARY WORDS IN ZONE BLOCK”
Programming zone 3 values (3 or less axes)
You can reassign values for the parameters that establish programmable
zone 3 by programming axis words in a G22 program block. Two methods
are available. This section discusses programming values for zone 3 when
3 or less axes have been configured on the system (this does not include
any spindle).
Define values for programmable zone 3 using the G22 command followed
by axis words in the following format:
G22 X__ Z__ U__ I__ K__ J__;
Where:
Defines:s
Absolute axis words
(normally X, Z, and U)
maximum zone limits
Integrand words
(normally I, K, and J)
minimum zone limits
These axis words can vary. Refer to your system installer’s
documentation. The following example assumes a three axis lathe
configuration. Absolute axis names are X, Z, and U. Integrands for these
axis words are I, K, and J respectively.
This block:
Results in:
G22 X10 I--10 Z14 K--14 U1 J--1;
upper and lower zone 3 limits for X, Z, and U axes
are changed. Zones 2 and 3 are both activated,
G22 X10 Z10 U20;
upper zone 3 limits are changed for X, Z, and U
axes. Zones 2 and 3 are both activated.
G22 I--10 Z10 K--5 J--3;
lower zone 3 limits for X and U axes are changed.
Both upper and lower limits for Z axis zone 3 are
changed. Zones 2 and 3 are both activated.
G22 K--10;
lower zone 3 limit for Z axis is changed. Zones 2
and 3 are both activate.
The zone values entered in a G22 block always reference coordinate values
in the machine coordinate system.