Elektro-Automatik EL 9080-170 B Betriebsanleitung Seite 170

By linking together a number of differently configured sequences, complex progressions can be created. Smart
configuration of the arbitrary generator can be used to match triangular, sine, rectangular or trapezoidal wave func-
tions and thus, e.g. a sequence of rectangular waves with differing amplitudes or duty cycles could be produced.
Schematic diagrams:
A
A
Point 1
A
Point 1 Point 2
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Germany
t
Point 2
t
Pt. 3 Point 4
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EL 9000 B Series
Applications and results:
Example 7
Focussing 2 cycles of 1 sequence point of 99:
A sequence point configured as in example 3 is
run. As the settings demand that the end offset
(DC) is higher than the start, the second cycle
will revert to the same start level as the first,
regardless of the values achieved at the end of
the first run. This can produce a discontinuity
in the total progression (marked in red) which
may only be compensated with a careful choice
t
of settings.
Example 8
Focussing 1 cycle of 2 sequence points of 99:
Two sequences points run consecutively.
The first generates a sine wave with increas-
ing amplitude, the second with a decreasing
amplitude. Together they produce a progres-
sion as shown left. In order to ensure that the
maximum wave in the middle occurs only once,
the first one must end with a positive half wave
and the second one start with a negative half
wave as shown in the diagram..
Example 9
Focussing 1 cycle of 4 sequences points of 99:
Point 1: 1/4th of sine wave (angle = 270 °)
Point 2: 3 Sine waves (ratio of frequency to
sequence point time 1:3)
Point 3: Horizontal ramp (f = 0)
Point 4: Falling ramp (f = 0)
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