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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
PSB 9000 3U Series
Schematic diagram:
Applications and results:
St
ar
t(
D
C
)
t
A
Seq.time
En
d
(D
C
)
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.
St
ar
t(
D
C
)
t
A
Seq.time
En
d
(D
C
)
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.
By linking together a number of differently configured sequence points, 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 diagram:
Applications and results:
t
A
Example 7
Focussing 2 cycles of 1 sequence point from 99:
One 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
sequence run 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
careful choice of settings.
t
A
Point 1
Point 2
Example 8
Focussing 1 cycle of 2 sequence points from 99:
Two sequence points run consecutively. The
first one generates a sine wave with increasing
amplitude, the second one 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 sequence point must end with a posi
-
tive half wave and the second one start with a
negative half wave as shown in the diagram..
