Rockwell Automation 8520-MUM 9/Series CNC Mill Operation and Programming Manual Documentation Set - Manual (Page 198)

Running a Program
Chapter 7
Running a Program
Chapter 7
7-16
6. Press the {EXIT} or the {EXIT & MOVE} softkey once the program
is at the desired location.
{EXIT} - Use this softkey if the tool is at the exact location for
execution of the searched program block. While the control searches
for your starting block it performs calculations to determine what the
absolute position of the axes should be before your selected block is
executed. If the cutting tool is not at this position when you press the
{EXIT} softkey, the control aborts the mid-start operation. When
this occurs the control displays the message “AXIS POSITION
INCORRECT”.
{EXIT & MOVE} - Use this softkey if the tool is not at the exact
location for execution of the searched block. Be aware that the
absolute position of the axes necessary at the start of the searched
block is dependant on the previous blocks. There can be offsets
activated or incremental moves that can make it difficult for you to
determine the exact absolute starting point for the axes. The control
generates a motion block to place the tool at the position necessary to
generate the intended contour when the searched block is executed.
The block generated is always a linear move with a feedrate based on
the last motion block prior to the searched block. If the last motion
block was a cutting move with a feedrate, then the generated block
will be a linear move at that cutting feedrate. If the last motion block
was a rapid move, that the generated block will be a linear move at
the rapid feedrate.
WARNING: It is the responsibility of the system installers PAL
application to make sure proper activation of all necessary
machine functions has occurred before allowing a search with
recall operation to continue. You should verify that all machine
functions are in the correct state before pressing <CYCLE
START>.
A message is generated telling the operator to check that all generated
modal codes are correct. This message reads “WARNING - VERIFY
MODAL CODES”. These modal codes should be checked on the G- or
M-code status screen.
The control begins program execution from the selected block when you
press the <CYCLE START> button. If you have pressed the {EXIT &
MOVE} button the control first executes the generated block to place the
tool at the proper location. If you do not want the control to execute this
generated block you can perform a block reset to abort the generated block.