Rockwell Automation 8520-MUM 9/Series CNC Mill Operation and Programming Manual Documentation Set - Manual (Page 333)

Coordinate System Offsets
Chapter 11
11-17
Example 11.7
Work Coordinate System Offset By G52
Program Block Machine Coordinate Position Work Coordinate Position
G01F55X25.Z25.; X25 Y25 X25 Y25
G52X10.Y10.; X25 Y25 X15 Y15
Figure 11.12
Results of Example 11.7
Tool position
X
X
Y Y
Work coordinate system
after G52 offset
Original work coordinate system
25 10
25
10
15
15
The G52 work coordinate system zero point offset can be canceled by
programming a G52 block with zero values for the axes to be cancelled.
The following block would cancel the work coordinate system offset for
the X axis only.
G52 X0;
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 may be
activated at some time after the G92 block is executed even if a G92 offset
is still in effect.
CAUTION: G52 offsets are global. This means that changing
from one coordinate system to another does not cancel the
offset. Do not specify a change in coordinate systems
(G54-G59) unless the effects of the offset have been considered.