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EA Elektro-Automatik GmbH
Helmholtzstr. 31-37 • 41747 Viersen
Germany
Fon: +49 2162 / 3785-0
Fax: +49 2162 / 16230
www.elektroautomatik.de
EL 9000 B 15U/24U Series
Schematic diagram:
Applications and results:
Sta
rt (D
C)
t
U,I
Seq.time
En
d (
DC
)
Example 2
Focusing 1 cycle of 1 sequence point:
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.
Sta
rt (D
C)
t
U,I
Start (AC)
End (AC)
Seq.time
En
d (
DC
)
Sta
rt (D
C)
t
U,I
Start (AC)
End (AC)
Seq.time
En
d (
DC
)
Example 3
Focusing 1 cycle of 1 sequence point:
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°.
Sta
rt (D
C)
t
U,I
f (start)
f (end)
Seq.time
En
d (
DC
)
Example 4
Focusing 1 cycle of 1 sequence point:
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.
Sta
rt (D
C)
t
U,I
Seq.time
En
d (
DC
)
Example 5
Focusing 1 cycle of 1 sequence point:
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 progression
is generated.
Sta
rt (D
C)
t
U,I
Seq.time
En
d (
DC
)
Example 6
Focusing 1 cycle of 1 sequence point:
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.
