Elektro-Automatik 33240600, Руководство по эксплуатации

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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
ea1974@elektroautomatik.de
EL 9000 B 15U/24U Series
3.10.6 Triangular function
The following parameters can be configured for a triangular wave function:
Value Range Description
I(A), U(A) 0...(Nominal value - (Off)) of U, I A = Amplitude of the signal to be generated
I(Off), U(Off) 0...(Nominal value - (A)) of U, I Off = Offset, based on the foot of the triangular wave
t1 0.01 ms...36000 s Rising edge time Δt of the triangular wave signal
t2 0.01 ms...36000 s Falling edge time Δt of the triangular wave signal
When adjusting very short time value for t1 and t2 not every adjustable amplitude can be gained
on the DC input. Rule of thumb: the smaller the time value, the lower the true amplitude.
Schematic diagram: Application and result:
O
ffse
t
t
A
A
m
plit
ud
e
t1 t2
A triangular wave signal for input current (only effective in
current limiting) or input voltage is generated. The posi -
tive and negative slope times can be set independently.
The offset shifts the signal on the Y-axis.
The sum of the intervals t1 and t2 gives the cycle time
and its reciprocal is the frequency.
Example: a frequency of 10 Hz is required and would
lead to periodic duration of 100 ms. This 100 ms can
be freely allocated to t1 and t2, e.g. 50 ms:50 ms (isos -
celes triangle) or 99.9 ms:0.1 ms (right-angled triangle
or sawtooth).
3.10.7 Rectangular function
The following parameters can be configured for a rectangular wave function:
Value Range Description
I(A), U(A) 0...(Nominal value - (Off)) of U, I A = Amplitude of the signal to be generated
I(Off), U(Off) 0...(Nominal value - (A)) of U, I Off = Offset, based on the foot of the rectangular wave
t1 0.01 ms...36000 s Time (pulse width) of the upper level (amplitude)
t2 0.01 ms...36000 s Time (pause width) of the lower level (offset)
Schematic diagram: Application and result:
O
ffs
et
t
A
A
m
plit
ude
t1 t2
A rectangular or square wave signal for input current
(direct) or input voltage (indirect) is generated. The
intervals t1 and t2 define how long the value of the
amplitude (pulse) and how long the value of the offset
(pause) are effective.
The offset shifts the signal on the Y axis.
Intervals t1 and t2 can be used to define a duty cycle.
The sum of t1 and t2 gives the period and its reciprocal
is the frequency.
Example: a rectangular wave signal of 25 Hz and a
duty cycle of 80% are required. The sum of t1 and t2,
the period, is 1/25 Hz = 40 ms. For a duty cycle of 80%
the pulse time (t1) is 40 ms*0.8 = 32 ms and the pause
time (t2) is 8 ms.