Manual 37443A DSLC-2 - Digital Synchronizer and Load Control
© Woodward Page 99/226
User defined (Hardware range)
min. output
value
2 0 to 100 % 0.00 % The minimum output value, which shall correspond with the mini-
mum value of the output range, must be entered here. This para-
meter is only active, if parameter 5215 is configured to "user de-
fined".
Example: If the value configured here is 25 %, the maximum out-
put range of +/-20 mA / +/-10 V has a lower limit of -10 mA / -5 V.
The maximum output value, which shall correspond with the max-
imum value of the output range, must be entered here. This pa-
rameter is only active, if parameter 5215 is configured to "user de-
fined".
Example: If the value configured here is 75 %, the maximum out-
put range of +/-20 mA / +/-10 V has a upper limit of 10 mA / 5 V.
A filter time constant may be used to reduce the fluctuation of an
analog output reading. This filter time constant assesses the av-
erage of the signal according to the following formula:
1
2220
1
−
×××
=−−
N
ms
frequencyoffCut
π
, whereby "N" is the pa-
rameter.
Off ................... The analog output is displayed without filtering.
1 ...................... Cut-off-frequency = 7.96 Hz
(filter time constant = 0.02 s)
2 ...................... Cut-off-frequency = 3.98 Hz
(filter time constant = 0.04 s)
3 ...................... Cut-off-frequency = 1.99 Hz
(filter time constant = 0.08 s)
4 ...................... Cut-off-frequency = 0.99 Hz
(filter time constant = 0.16 s)
5 ...................... Cut-off-frequency = 0.50 Hz
(filter time constant = 0.32 s)
6 ...................... Cut-off-frequency = 0.25 Hz
(filter time constant = 0.64 s)
7 ...................... Cut-off-frequency = 0.13 Hz
(filter time constant = 1.28 s)
Off: An analog signal is selected.
On: A PWM signal will be supplied on the voltage bias output.
This is a voltage signal, so the hardware output must have a jum-
per between terminals 18 and 19. The amplitude of the PWM sig-
nal to be utilized is configured in PWM output level (parameter
5224). The PWM signal will also be limited by parameter 5215 or
5222 and parameter 5223 if parameter 5215 is user defined.
If PWM has been enabled in parameter 5216, the level of the
PWM signal may be adjusted here.
Display voltage bias [0 to 100.00 %].
Voltage and reactive power controller output.
control initial
state
2 0.0 to 100.0 % 50.0 % This is the initial state of the voltage (AVR) biasing output. The
voltage bias output functions from 0 to a 100 %.
Example:
Selected Hardware type (parameter 5251) of +/-3 V
• A setting of 50 % will provide a 0 V output.
• A setting of 25 % will provide a -1.5 V output
•
A setting of 75 % will provide a +1.5 V output
Table 3-30: Parameter – analog input / output