Rockwell-automation 8520-GUM 9/Series CNC Grinder Operation and Progra Manual de usuario Pagina 90

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Chapter 3
Offset Tables and Setup
3-18
4. Press the {ACTIVE OFFSET} softkey when the offset you want is
selected. Length offsets are made active as described in chapter 13.
Radius/orientation offsets are made active as described in chapter 15.
(softkey level 3)
SEARCH
NUMBER
REPLCE
VALUE
ADD TO
VALUE
ACTIVE
OFFSET
MORE
OFFSET
You enter two types of data in the work coordinate system table:
Zero PointParameters the initial work coordinate system zero pointlocations that are
calledwhenprogramming G54 - G59.3.
External O ffset usedto offsetall ofthe G54 - G59.3zeropoints tomake the
same set ofwork coordinate systems fit a variety of
applications.
Zero Point Parameters
Enter positions for the zero points as machine coordinate values. The
control then uses the specified machine coordinate position as the work
coordinate system zero point. See page 11-10 for details on work
coordinate systems.
Enter a machine coordinate system position for each axis of the work
coordinate system below the corresponding G code (G54-G59.3) as
described on page 3-19.
Externaloffset
Use the external offset to modify all of the work coordinate system zero
points. The value entered here offsets all of t he work coordinate systems
by the specified amount. Enter external offsets in the work coordinate
system tables as the external offset value.
This offset lets a programmer use the same set of work coordinate system
values in a variety of applications. Adjusting t his value, for example,
allows for use of the same work coordinate systems and programs after a
different part or dresser/wheel mounting fixture has been installed on the
machine. You can also use this to offset all work coordinate systems when
part programs are transferred from different machines with different
mechanical features. See page 11-10 for details on the external offset.
3.7
Work Coordinate System
Offset Table {WORK
CO-ORD}
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