Woodward GCP-30 Series - Frequency Controller

Manual 37365A GCP-30 Series Packages - Genset Control
© Woodward Page 39/179
Frequency Controller
Parameter 37
Initial state
Frequency 000%
BPQ, XPQ
Frequency controller: initial state of the actuator 0 to 100 %
The value entered for this parameter is the start reference point for the analog out-
put to the speed controller. If the output to the speed control has been disabled, the
output will act as a control position reference point. The percentage value confi-
gured here refers to the range of the analog signal configured by "Stepper sign.frq
(min.)" (Parameter 48) and "Stepper sign.frq (max)" (Parameter 49).
Exam
ple: If a 0 to 10 V signal is configured with a min. limit of 10% and a max.
limit of 90%, the reference range is 1 to 9 V. A setting of 25% would result a start
reference point of 3 V. Refer to the Special Applications chapter of the Application
Manual 37240 for more detailed information about this setting.
Parameter 38
Freq.controller
ON
Frequency controller: enable ON/OFF
ON ................ The generator frequency is controlled by the GCP-30. The method of
generator frequency is determined by the application (isolated opera-
tion / synchronization). The subsequent screens of this function are
displayed.
OFF .............. The generator frequency is not controlled by the GCP-30 The subse-
quent screens of this function are not displayed.
Parameter 39
f-contr. active
at: 00.0Hz
Frequency controller: activation frequency 0.0 to 70.0 Hz
The frequency controller is activated when the monitored generator frequency has
exceeded the value configured in this parameter. This prevents the GCP-30 from
attempting to control the frequency while the engine is completing its start se-
quence.
Parameter 40
Delay time for
f-contr. 000s
Frequency controller: activation delay 0 to 999 s
The frequency controller is enabled after the configured time for this parameter ex-
pires.
Parameter 41
Freq.controller
ramp 00Hz/s
Frequency controller: set point ramp 1 to 50 Hz/s
Different sized generators and applications require different ramp rates for the
speed control when starting. The rate at which theGCP-30 changes the speed refer-
ence point is defined by this parameter. A more rapid change to the speed reference
requires a larger value to be configured here.
NOTE
The parameters for the speed/frequency controller influence the generator real power controller.