Rockwell Automation 8520-GUM 9/Series CNC Grinder Operation and Programming Manual Documentation Set - Manual (Page 334)

Coordinate Control
Chapter 11
11-18
A G52 offset can also be canceled by executing a G92 or G92.1,
performing a control reset or an E-STOP reset operation, or executing an
end of program M30 or M02. A G92 command only cancels a G52 offset
if one is active when the G92 block is executed. A G52 offset can be
activated after the G92 block is executed even if a G92 offset is still in
effect.
ATTENTION: G52 offsets are global. This means that
changing from one coordinate system to another does not cancel
the offset. Do not program a change in coordinate systems
(G54-G59.3) unless the effects of the offset have been
considered.
When you perform a set zero operation, the control shifts the current work
coordinate system so that the current wheel position is the zero point of the
coordinate system. The axis that set zero is performed on is selected
through PAL (see your system installer’s documentation) or by the current
jog axis if using the {FRONT PANEL} option.
The set zero offset is similar to the execution of a G92 X0 Z0 block, with
one exception. Unlike a G92, the set zero does not cancel a G52 offset.
The G52 remains active and continues to offset the current wheel position
in the work coordinate system. When the G52 offset is canceled later, the
coordinate system shifts.
You can cancel the set zero offset by executing a G92.1, a control reset
operation, an E-STOP reset operation, or by programming an end of
program M30 or M02 command.
ATTENTION: Set zero offsets are global. This means that
changing from one coordinate system to another does not cancel
the offset. Do not program a change in coordinate systems
(G54-G59.3) unless the effects of the offset have been
considered.
11.4.3
{SET ZERO} Offset