Rockwell Automation 8520-GUM 9/Series CNC Grinder Operation and Programming Manual Documentation Set - Manual (Page 374)

Axis Motion
Chapter 12
12-2
After the execution of a positioning command, the program proceeds to the
next block only after an in-position check function confirms that all
commanded axes have reached their in-position band. Your system
installer sets the in-position band width in AMP. See page 12-70 for
details on the G--codes that you can use to modify the in-position band
check.
Format for the rapid positioning mode is as follows:
G00X__ Z__ ;
Where : Is :
G00 the G00 code establishes the rapid positioning mode. In this mode, the grinding
wheel is fed along a straight line at the rapid feedrate determined in AMP by your
system installer.
XZ the end point of the move generated by the G00 block in the current work
coordinate system.
You can perform rapid positioning in the absolute mode (G90), or the
incremental mode (G91).
Your system installer determines the feedrate for each axis for the rapid
positioning mode in AMP. See page 12-53 for details on feedrates. The
acceleration/deceleration type for each axis (linear or exponential) is also
defined in AMP. See page 12-63 for details on Acc/Dec.
In rapid positioning mode, as in linear interpolation mode (G01), when
more than one axis is commanded, they are driven together to produce a
linear move in which all axes start and stop at the same time.
G00 is a modal command and remains in effect until canceled by a G--code
of the same group. For a listing of G--code groups, refer to appendix C.
Example 12.1 illustrates a G00 rapid positioning move. This example first
establishes diameter programming mode with the G08 block. Diameter
programming mode is available on cylindrical grinders only.
Example 12.1
Positioning (G00)
Absolute command Incremental command
G08; G08;
G90G00X75.Z105.; G91G00X-60.Z-160.;
12.1.1
Rapid Positioning Mode
(G00)