Rockwell Automation 8520-GUM 9/Series CNC Grinder Operation and Programming Manual Documentation Set - Manual (Page 112)

Manual/MDI Operation Modes
Chapter 4
4-8
Results of Gap Elimination
When you perform manual gap elimination during block execution (as can
be the case in AUTO or MDI modes), it bypasses any motion generated by
an executing cycle block that occurs above the newly jogged to position.
Cycle execution continues from the new grinding wheel location.
Figure 4.3
Cycle Execution Continues With Gap Eliminated
Part
Reciprocation Axis
Start
Cycle (Absolute Mode)
Start Manual Gap Elimination.
Reciprocation
continues as
plunge axis is jogged towards
the part.
End Manual Gap Elimination.
Cycle resumes from this point.
Plunge Axis
12001-I
Important: The manual gap elimination feature does not offset the
coordinate system. It is an actual jog of the grinding wheel closer to the
part location in the current work coordinate system. If you want to jog an
offset, see chapter 11 for details.