Rockwell Automation 8520-MUM 9/Series CNC Mill Operation and Programming Manual Documentation Set - Manual (Page 210)

Running a Program
Chapter 7
Running a Program
Chapter 7
7-28
CAUTION: When you exit a program restart operation (search
with memory), M- and S-codes are sent to PAL. If, during
normal execution, that program activated a spindle,
mid-program start may also start it.
4. Press the {EXIT} softkey if the block selected is the block to begin
program execution from. If it not the desired block, it will be
necessary to disable the program or perform a search with memory
operation to locate the desired block manually.
(softkey level 3)
EXEC QUIT EXIT
When the {CYCLE START} button is pressed the control resumes
program execution from the block selected with the program re-start
feature.
The jog retract feature is intended to allow for inspection or change of the
cutting tool during automatic program execution. It allows the cutting tool
to be jogged from the workpiece in multiple steps, and then returned to the
workpiece automatically by having the control retrace the jogging steps
that were used.
The control remembers up to 15 jog retract moves. The actual number of
moves retained may vary from 0 to 15 as determined by an AMP
parameter set by the system installer. The control returns the tool along the
jog retract path at a feedrate specified in AMP.
Important: If the same axis is used in succession during a jog retract
operation, the control assumes that only one jog retract move has been
executed on that axis.
Only simple single axes jog moves can be performed during the jog retract
function. Multiple axis jogs, arbitrary angle jogs and jogging offset are not
allowed.
Tool offsets can be changed at any time during jog retract (see chapter 3).
The control will not make these offsets active until the execution of the
first block after the tool has been returned from jog retract.
7.9
Jog Retract