Operating instructions
4-6 Operating Instructions
Transition
In programming
the
PC40,
the
transition values refer
to
the
end-point
of
(continued) each delay and
each
duration. Each
end
-point is defined in relation to
the
trigger signal, which is
the
starting point
of
the entire transition
sequence. Each transition value is a distance measure that
is
converted
to
time values.
2
0
NOTE:
The
initial
delay
for an application with a leading edge trigger
has to account for the trigger
to
gun distance (A in Figure 4.3) plus
the
distance from
the
leading edge to the first transition
(Bin
Figure 4.3).
The first transition
(f1) in Figure 4.3 is
700
ms
.
The
700
ms length
includes the trigger to
gun
interval of 400
ms
plus
the
300
ms
from
the
leading edge
of
the
substrate
to
the
first delay interval.
The second transition
(f2) is
1000
ms, which
is
the
end point
of
the first
duration
In
relation
to
the
trigger
signal. It is important not to confuse
the
length
of
the duration, 300 ms, with
the
transition, T2,
wh
ich
is
1000 ms.
:
T,
T2
T3
T
..
A--i
s r 1 1 1
:
700
1000 1600 1900
._
__
5
._
__
6
1 c::;:p
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3 ยท'
Figure 4.3 - Determini
ng
transition lengths
A - Gun to
tr
igger distance
8 - Leading edge to start
of
first duration
1- Gun
2 - Trigger
3 - Transition sequence
4 - Line travel direction
5 - Cumulat
iv
e transition lengths (in ms)
6 - Dela
y/
duration lengths (in ms)
PIN 1
08389A
57-28 1
/9
3
.._--4---
C1
Nord son Corpora
bon
1993
All
Roghts R eS<Irv
ed