Woodward easYgen-2000 Series User Manual page 227

ID Parameter
5228 Data source
5242
5232 Source value
at minimal
5246
output
5234 Source value
at maximal
5248
output
5231 Filter time con‐
stant
5245
5229 Selected hard‐
ware type
5243
37535B
CL Setting range Description
[Default]
2 Determined by The data source may be selected from the available data sources.
Analog Manager
Notes
AO3: [00.01
Refer to
Engine speed]
sources.
AO4: [00.01
Engine speed]
2 -32000 to 32000 The value from the data source must exceed the value configured here to
raise the output signal above 0 %. Negative percentage values may be used
[0]
to change the sign, e.g. for power.
The entry format of the value depends on the selected data source.
Notes
If the monitored analog value has a reference value, the threshold is
expressed as a percentage of this reference value (-320.00 % to 320.00 %).
If an analog input is monitored, the threshold refers to the display value
format (
2 -32000 to 32000 If the value from the data source reaches the value configured here, the
output signal will reach 100 %. Negative percentage values may be used to
[10000]
change the sign, e.g. for power.
The entry format of the value depends on the selected data source.
Notes
If the monitored analog value has a reference value, the threshold is
expressed as a percentage of this reference value (-320.00 % to 320.00 %).
If an analog input is monitored, the threshold refers to the display value
format (
2 A filter time constant may be used to reduce the fluctuation of an analog
output value. This filter time constant assesses the average of the signal
according to the following formula:
n
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)
Notes
The filter is not applied to the analog output display value, i.e. the end value
of the analog output is displayed immediately.
2 This parameter is used to configure the appropriate type of analog controller
signal. The range of the analog output is configured here.
easYgen-2200/2500 | Genset Control
Configure Application > Analog Outputs 3/4
Ä Chapter 9.3.1 "Data Sources" on page 533 for a list of all data
Ä Chapter 9.3.2.16 "Display Value Format" on page 548 ).
Ä Chapter 9.3.2.16 "Display Value Format" on page 548 ).
Cut-off-frequency =
1 / (20 ms * 2 * π * 2 N - 1 )
whereby "N" is this parameter.
Configuration
227