CDA PC44 Betriebsanleitung Seite 61

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Seitenansicht 60
Transition
Figure 4.
2-
Delays
and
durations
A - Delay (Off)
B - Duration (On)
1 - Gun
2 - Trigger
3 - Transition sequence
4 - Line travel direction
C N
Ot
ds
on
Co
rporation 1
993
AI
R1g
hts
Res
erved
1
Operating Instructions 4-5
X
Definition:
A change from one in.terval to the other: either a change from a delay to
a duration or from a duration to a delay. The combination of delays and
durations makes up a transition sequence (Figure 4.2).
2
Q
I
I
I
0
3
A
-
-
~B~
..----4-
--
Decision
Factors:
number
of
transitions - dependent upon number of delays and
durations
delays - lengths of spaces between beads
durations - material bead lengths
transition set-points - cumulative sum of delay and duration values
The placement
of
every bead
of
material on the substrate requires at
least two time intervals to be completed: one delay (gun off) followed
by
one duration (gun on).
NOTE: Nordson timers commonly use the first pattern interval as a
delay. In Figure 4.2, the pattern consists
of
a delay, a duration, a
second delay, and a second duration. Each new pattern starts with the
first delay interval.
The
PC40 allows you
to
program from one to four delays and from one
to four durations.
PI
N 1
08
389A
57·
28 1
/9
3
Seitenansicht 60
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