Rockwell Automation 8520 9/Series CNC Lathe - Manual (Page 328)

Coordinate System Offsets
Chapter 11
11-22
The G92.2 block must be programmed with no axis words. Axis words in
a G92.2 block generate an error. When you execute the G92.2 block, all
G92, {SET ZERO}, and Jog offsets are canceled on all axes. You cannot
cancel the offsets on only one or more of the axes.
No axis motion takes place during execution of a G92.2 block. Axes
remain at their last programmed position while the work coordinate system
adjusts to remove these offsets.
Your system installer has the option of activating, deactivating, or altering
the value of these offsets through PAL:
Work coordinate systems
External offset
Tool length offsets (geometry and wear)
Tool tip radius offsets (geometry and wear)
Tool orientation
These offsets can be modified through a PAL display page created by your
system installer or through some other input to PAL.
There can be an impact on the activation of offsets if a part program is
already active for automatic execution. Typically, any blocks that have
been read into the control’s look-ahead buffer use the newly modified
offset value. If a cutter compensation offset has been modified by PAL,
the control does not update the look-ahead buffer unless the offset is
currently active. Refer to documentation supplied by your system installer
for details on specific PAL offset operations.
END OF CHAPTER
11.5
PAL Offsets