Elektro-Automatik EL 9080-170 B Betriebsanleitung Seite 169

Schematic diagram:
A
Seq.time
A
Start (AC) End (AC)
Seq.time
A
f (start)
f (end)
Seq.time
A
Seq.time
A
Seq.time
EA Elektro-Automatik GmbH
Helmholtzstr. 31-37 • 41747 Viersen
Germany
Applications and results:
Example 2
Focussing 1 cycle of 1 sequence point from 99:
The DC values at start and end are the same but the AC (amplitude)
not. The end value is higher than the start so that the amplitude
increases with each new half sine wave continuously through the
sequence point. This, of course, only if the sequence point time and
frequency allow for multiple waves to be created. e.g. for f=1 Hz and
Seq. time = 3 s, three complete waves would be generated (for angle
= 0 °) and reciprocally the same for f=3 s and Seq. time=1 s.
t
Example 3
Focussing 1 cycle of 1 sequence point from 99:
The DC values at start and end are unequal, as are also the AC val-
ues. In both cases the end value is higher than the start so that the
offset increases from start to end (DC) and the amplitude also with
each new half sine wave.
Additionally the first sine wave starts with a negative half wave be-
cause the angle is set at 180°. The start angle can be shifted at will
in 1° steps between 0° and 359°.
t
Example 4
Focussing 1 cycle of 1 sequence point from 99:
Similar to example 1 but with another end frequency. Here this is
shown as higher than the start frequency. This impacts the period
of the sine waves such that each new wave will be shorter over the
total span of the sequence point time.
t
Example 5
Focussing 1 cycle of 1 sequence point from 99:
Similar to example 1 but with a start and end frequency of 0 Hz.
Without a frequency no sine wave part (AC) will be created and only
the DC settings will be effective. A ramp with a horizontal progres-
sion is generated.
t
Example 6
Focussing 1 cycle of 1 sequence point from 99:
Similar to example 1 but with a start and end frequency of 0 Hz. With-
out a frequency no sine wave part (AC) will be created and only the
DC settings will be effective. Here start and end values are unequal
and a steadily increasing ramp is generated.
t
Fon: +49 2162 / 3785-0
Fax: +49 2162 / 16230
EL 9000 B Series
www.elektroautomatik.de
ea1974@elektroautomatik.de
Page 73