Adjusting The Sensor Position Loop - Fagor CNC 8060 Installation Manual

I n s t a l l a t i o n m a n u a l .
16.1.5

Adjusting the sensor position loop.

GAPCONTROL
GAPGAIN
GAPAPPROACHDYN
GAPSENSORFILTER
ORDER
FREQUENCY
GAP SENSOR
FEEDBACK
V.G.GAP
Adjust with the aid of the oscilloscope.
1 Executing a program when gap control is active.
2 Selecting the variables (V.)G.GAP y (V.)A.GAPCOMP.Z (sensor axis).
(V.)G.GAP
(V.)A.GAPCOMP.Z
3 Attempting to reduce the gap (variable G.GAP) while incrementing the proportional gain
(parameter GAPGAIN). Increasing the proportional gain with small increments (e.g.
0.05). Using the GAPAPPROACHDYN parameter to adjust the GAPGAIN value during
the final part of the plate approach, when the CNC has detected the sensor signal.
4 Reducing the filter frequency (machine parameter FREQUENCY) to obtain a softer
response. Since the gap value increases, increase the proportional gain (machine
parameter GAPGAIN).
Proportional gain applied to the signal sensor, in position. To use values
greater than 0.2 (close to 1), it is advisable to use the parameter
GAPSENSORFILTER.
Dynamic response during the final part of the movement approaching the
plate.
Low step filter; it is advisable to define a filter of order 2 and cutoff
frequency of 30 Hz.
Filter order.
Break frequency.
GAP
CUTOF
FILTER
Actual gap value, detected by the sensor.
Compensation introduced by gap control into the axis associated
with the sensor to maintain the gap.
POSITION
LOOP
P-GAIN
16.
CNC 8060
CNC 8065
(R : 1709)
EF
·675·