Rockwell Automation 8520 9/Series CNC Lathe User Manual
Page 339
Chapter 12
Overtravels and Programmable Zones
12-11
If a value for a maximum axis parameter is less than the value set for an
axis current minimum parameter, or if a value for a minimum axis
parameter is set greater than the value set for an axis current maximum
value, the control displays the message:
“INVALID VALUE (MAX < MIN) FOR ZONE 3 AXIS (X)”
This message displays the name of the axis that has been set incorrectly. It
does not indicate if it is the minimum or maximum value that is incorrect.
If the same integrand word is assigned in AMP by the system installer to
more than one axis, that integrand word will set the lower zone 3 limit for
all axes with that integrand.
Programming zone 3 values (4 or more 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
4 or more axes have been configured on the system (this does not include
any spindle).
This method differs from the three axis method in that the same integrands
can be used again for different axes (necessary since the control only
supports three integrand words). Assume the following AMP
configuration:
Absolute Axis name
X
Y
Z
U
V
W
A
B
C
Axis Integrand
I
J
K
I
J
K
I
J
K
These axis words can vary. Refer to your system installer’s
documentation.
Define values for programmable zone 3 using the G22 command followed
by axis words in the following format:
G22 X__ Y__ Z__ I__ J__ K__;
G22 U__ V__ W__ I__ J__ K__;
G22 A__ B__ C__ I__ J__ K__;
Where:
Defines:
Absolute axis words
maximum zone limits
Integrand words
(normally I, J, and K)
minimum zone limits