© EPS Stromversorgung in 2022, this information is subject to change without notice
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30000800_manual_psb_10000_4u_30kw_en_04
3.11.5
Sine wave function
Restrictions which apply particularly to this function:
•
There is no preselection to which of both, source mode and sink mode, the function is applied; the settings decide whether
it’s “source mode only”, “sink mode only” or a mixture of both
•
When applying the function to the voltage, the device can only switch to and work in sink mode if the external voltage on the
DC terminal is higher than the highest point ( amplitude) of the wave and the current setting “I (EL)” is not 0
The following parameters can be configured for a sine function:
Parameter
Range
Description
Frequency (f)
1...10000 Hz
Static frequency of the signal to be generated
Amplitude (A)
0...(rated value - |O|) of U or I
Amplitude of the signal to be generated
Offset (O)
0... (U
Nom
- A)
Offset from the zero point of the mathematical sine curve
- (I
Nom
- A)...+(I
Nom
- A)
Schematic diagram:
Application and result:
Of
fse
t
t
U,I
f
-I
Am
pl
itud
e
A sine wave signal is generated and applied to the selected set value,
e.g. the current (I mode). Depending on the adjusted parameters the
device can apply the wave either solely to sink mode or to source
mode, but also to both with automatic switchover at zero point. The
scheme on the left depicts the “mixed mode” run (yellow = source
mode active, green = sink mode active). While the amplitude is al-
ways an absolute value, the offset can be positive or negative (I
mode only).
For calculating the maximum power the current amplitude and the
offset value have to be added.
Example: a voltage of 100 V is set. The parameters for the sin(I)
function are: amplitude of 80 A and offset of +50 A. The resulting
maximum power when reaching the highest point of the sine wave
then is (80 A + 50 A) * 100 V = 13000 W for the source part and when
reaching the lowest point (sink part) it will be (50.A - 80 A) * 100 V =
-3000 W.
3.11.6
Triangular function
Restrictions which apply particularly to this function:
•
There is no preselection to which of both, source mode and sink mode, the function is applied; the settings decide whether
it’s “source mode only”, “sink mode only” or a mixture of both
•
When applying the function to the voltage, the device can only switch to and work in sink mode if the external voltage on the
DC terminal is higher than the highest point ( amplitude) of the wave and the current setting “I (EL)” is not 0
The following parameters can be configured for a triangular function:
Parameter
Range
Description
Amplitude (A)
0...(rated value - |Offs|) of U or I
Amplitude of the signal to be generated
Offset (O)
0... (U
Nom
- A)
Offset, based on the foot of the triangular wave
- (I
Nom
- A)...+(I
Nom
- A)
Time t1
0.1 ms...36,000,000 ms
Rising edge time Δt of the triangular wave signal
Time t2
0.1 ms...36,000,000 ms
Falling edge time Δt of the triangular wave signal
