Rockwell Automation 8520-GUM 9/Series CNC Grinder Operation and Programming Manual Documentation Set - Manual (Page 456)

Axis Motion
Chapter 12
12-84
Figure 12.42 shows the position display for a system that contains a dual
axis group containing two axes with a master axis name of X. Whether or
not all axes of a dual group show up on the position display is determined
in PAL by your system installer.
Important: A dual axis cannot be programmed as a reciprocating axis.
Any attempt to program a G81 or any cycle that generates reciprocation on
a dual axis generates an error.
Figure 12.42
Axis Position Display for Dual X-Axis
PRGRAM
MANAGE
OFFSET MACRO
PARAM
QUICK
CHECK
SYSTEM
SUPORT
E-STOP
PROGRAM[ MM ] F 0.000 MMPM
X1 -7483.647 S 00
Z -0219.550 T 0
U -2345.673 (ACTIVE PROGRAM NAME)
X2 -7483.647
MEMORY MAN STOP
This feature allows the operator or programmer to disable selected axes of
the dual group. Any axis that is a member of a dual axis group can be
parked. Axes in the dual group can be parked simultaneously. If all axes
in the group are parked, no motion can take place in the dual axis group.
Once parked, no motion is allowed on the parked axis. Programmed and
jog commands (including any homing requests) made to the dual axis
group are ignored by the parked axes.
12.13.1
Parking a Dual Axis