Rockwell Automation 8520-MUM 9/Series CNC Mill Operation and Programming Manual Documentation Set - Manual (Page 838)

Using Transfer Line Cycles
Chapter 31
31-36
Template 7: Left-Hand Tapping Cycle
Letter Paramacro Label Description
G 500 G90/91 G-codes G90 or G91 for absolute or incremental modes. At this time only absolute
mode, G90, is available.
X,Y 501, 502 HOLE POSITION X, Y The location the tool moves to before it begins a tapping operation.
X 503 DEPTH TO TAP The location where the tool completes the tap into the part.
R 504 CLEAR POSITION The location that the tool retracts to after an operation. It is completely free of the
part. This also known as the R plane.
X,Y 505, 506 RETURN POSITION X, Y The location where the controls starts and stops a cycle.
F 507 FEEDRATE The feedrate for tapping operations, and all moves represented by the solid lines in
the QuickView screens.
P 508 DWELL TIME The amount of time the axis pauses before it retracts from the hole; measured in
seconds.
X 509 TOOL CHANGE POSITION The location the control moves to so that a tool change may be performed.
S 510 SPINDLE SPEED The speed of the spindle. Measured in revolutions per minute.
Required entry Optional entry
Figure 31.10
Left-Hand Tapping Cycle
Spindle rotation direction is
reversed at hole bottom
1
2
3
4
5
6
7
Cutting feedrate
Maximum cutting feedrate
R
Depth of Hole
Clear Position
Return
Position
Hole Position