Rockwell Automation 8520 9/Series CNC Lathe - Manual (Page 454)

Dual Axis Operation
Chapter 19
19-6
Important: You can use the PAL axis mover feature if it is necessary to
position dual axis group members separately without requiring any
parking. Refer to the PAL manual and the system installer’s
documentation for details.
Invalid Operations on a Dual Axis
Table 19.A lists the features that are not compatible with dual axes. If you
must execute one of these features on a dual axis, only the AMP master
axis can be used. All other axes in the dual group must be parked.
Refer to your system installer’s documentation to determine which axis has
been assigned in AMP as the master axis.
Table 19.A
Features Not Compatible With Dual Axes
G-code Feature
G16.1 Virtual C Cylindrical Interpolation
G16.2 Virtual C Cylindrical End Face Milling
G20, G24 Single Pass Roughing
G21 Single Pass Threading
G31-G31.4 External Skip Functions
G33, G34 Thread Cutting Mode
G37-G37.4 Automatic Tool Gauging Skip Functions
G72-G75 Roughing Cycles
G76 Face Grooving Cycle
G77 Grooving Cycle
G78 Multi-Pass Threading Cycle
G84.2, G84.3 Solid Tapping
G86.1 Boring Cycle w/Shift
G87 Back Boring Cycle