Section:
Page
PROGRAMMING
20
Chapter: 6
6.5.5.1 AUTOMATIC PASS COMPENSATION
The CNC allows any variations that may arise in the material through temperature dilation,
roller tension, etc. to be automatically compensated.
To carry out these compensations the following is required:
- The material has to have reading marks in the cutting zones.
- An optical reader has to be used for reading these marks.
- The signal given by this reader must be compatible with the Io signal given by the
Fagor feedback devices.
- Connect the signal given by the optical reader to pin 6 of connector A2 and properly
set "P63(6)" machine parameter.
- Set machine parameter "P100(3)=1" to be able to use this feature.
- Set machine parameter "P81" with the maximum deviation allowed.
Operation:
1.- Activate the slave mode function. The machine will start to cut.
2.- When variations are detected in the material, and only then, the compensator function
must be activated. To do this set input E1 high (pin 21 of connector I/O1 at 24V).
3.- The optical reader tells the CNC the location of the marks and this displays the distance
between 2 consecutive marks in the window for the X axis.
4.- The CNC compares this value and the one programmed in function G34 X???? and
does the following:
* If parameter "P81=0"is set, the CNC does nothing.
* If the difference is under 100 microns, the CNC does nothing.
* If the difference is between 100 microns and the value assigned to parameter P81,
the CNC automatically compensates the value set in function G34 X????.
* If the difference is greater than the value assigned to parameter P81, the CNC will
display error 53.
5.- Compensation has already been carried out. Deactivate the compensator function, input
E1 (pin 21 of connector I/O1) at 0V.
The CNC will stop handling the signals coming from the optical reader and continue
working with the last step calculated.
Attention:
Do not modify the spindle revolutions during automatic pass
compensation.
Automatic pass compensation should not be done continuously. It
should be used when variations in the material are found.
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