Fagor 8025 T CNC, Operating Manual

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96 8025/8030 CNC PROGRAMMING MANUAL
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 communications program, 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, THEORETI-
CAL 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 EXE-
CUTED 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.
P606 bit 6 indicates the type of impulse (+ or -).
P710 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).