Delta ASDA-A3 Series User Manual page 323

Motion Control
The formula for the synchronous Capture axis correction rate is as follows. You can use P5.080
to modify the correction rate.
( 100 − ��5.080 ) % < Correction rate =
7
The synchronous Capture axis is for correcting the accumulated deviation. Use the mean filter if
immediate correction for the subtle deviation is necessary. The correction filter P1.015 can set
the range for enabling the filter. If the error is within the set range, the filter is enabled. If the
error is greater than the set value of P1.015, it means E-Cam deviation is too great and must be
corrected immediately instead of being filtered. Its operation is shown in Figure 7.3.7.16.
When the mark printing quality is inferior or there is a stain on the non-mark reading area, the
synchronous Capture axis can perform the masking function with high speed position capturing.
To avoid misreading the mark due to stains, use P1.020 to specify the distance in pulses for
disabling the Capture function before and after reading the mark reading area, as shown in
Figure 7.3.7.17.
7-126
Correction rate
Correction filter intensity
variation
P1.015.YX
Correction rate filter
range
Figure 7.3.7.16 Correction filter of synchronous Capture axis
P1.020 masking pulse number
(1)
P5.078 pulse number between two marks
(2)
Capture the mark and mask the area
(3)
Figure 7.3.7.17 Capture masking function
Sync CAP axis output pulse
Sync CAP axis input pulse
P1.015.Z
z
Sync CAP axis
Average of 2
output pulse
ASDA-A3
< ( 100 + ��5.080 ) %