Fagor 8025 GP, Operating Manual

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8025/8030 CNC PROGRAMMING MANUAL 127
Thanks to different processes within the digitizing program, we can optimize the probing
of the pattern. For example, geometrical aid functions can also be entered in the generation
block G76 with which it is possible to round off the machining profile calculated point by point.
One of the multiple applications of the G76 function is the creation of a program known as the
mathematical function. The path followed is calculated by means of a parametric program and
executing it in DRY RUN. These programs have a special sense when the mathematical
function is very complex and the control cannot process all the calculation in real time
simultaneously with machining. The path breaks down previously into successive points, with
the possibility of rounding off, for example, being stored as a new program.
. FAGORDNC FOR DIGITIZING
Once executed, FAGORDNC selects the DIGITIZING option. Once this has been done, the
computer waits to receive data from the CNC. Now we execute the probing program which has
been chosen previously for the pattern. When the CNC stops digitizing the whole surface
of the pattern, the computer will indicate the PROGRAM RECEIVED message.
The programs stored in the computer can be modified with any text editor which generates
ASCII characters, as if they were texts. In this way we can modify the depth of the run, work
rate, etc., or program machining conditions in the first 100 blocks reserved for this.
In order to execute the program store in the computer and after executing this, the FAGORDNC
communicationsprogram, we will choose the INFINITE PROGRAM EXECUTION option.
The computer will ask for the program number, and afterwards, the number of times that it will
repeat the program, and finally, we will choose between executing the program in
AUTOMATIC, DRY RUN, “G” FUNCTIONS, THEORETICAL PATH. After this
sequence of keystrokes, the computer starts sending the program generated to the numerical
control, following the path of the previously digitized surface. Once the program has been
completely executed, the computer will show the PROGRAM EXECUTED message.
It is very important to be familiar with the OPERATING SYSTEM of the computer to
carry out all these processes. On occasions, it is of invaluable help.
. PARAMETERS INVOLVED WITH DIGITIZING.
P612 bit 7 indicates the type of impulse (+ or -).
P720 if G75 sends M.
The 9-pin A6 connector is used for receiving the signals from a measurement probe.
(Specifications in the Installation and Start-up Manual).