Woodward GCP-20 Series User Manual

Manual 37128A GCP-20 Series - Genset Control
© Woodward Page 79/190
Frequency Controller
NOTE
The initial state refers always to the complete range of the actuator signal (0 to 100%) regardless of the
min/max limitations.
A possible range limitation of the actuator signal is considered for active controllers.
If a controller is enabled, the initial state may change to a new value, defined by the limitations. In case,
the initial state is 30% and the minimum and maximum limits are 50% and 100%, the initial state
changes from 30% to 50% when enabling the controller.
Parameter 29
Initial state
Frequency 000%
Option QF only
f controller: initial frequency 0 to 100 %
Analog controller output setting with disabled controller. This value is used as an
initial state value if the controller is disabled.
Parameter 30
Actuating signal
Freq. min 000%
Option QF only
f controller: minimum frequency 0 to 100 %
This parameter permits the operator to clamp or limit the lower analog output
value.
Example:
A 1 to 4V analog output is needed for the frequency controller to operate
properly. A jumper is installed on the terminals as described above and the analog
output of 0 to 5V is selected. The number to be configured in this parameter is de-
termined by dividing the desired lower limit by the range (1/5=0.20 or 20%). 20%
is the value to be configured in this parameter.
Parameter 31
Actuating signal
Freq. max 000%
Option QF only
f controller: maximum frequency 0 to 100 %
This parameter permits the operator to clamp or limit the upper analog output
value.
Example:
A 1 to 4V analog output is needed for the frequency controller to operate
properly. A jumper is installed on the terminals as described above and the analog
output of 0 to 5V is selected. The number to be configured in this parameter is de-
termined by dividing the desired upper limit by the range (4/5=0.80 or 80%). 80%
is the value to be configured in this parameter.
Parameter 32
Freq.controller
ON
f controller: activation ON/OFF
ON................ The generator frequency is controlled. The generator frequency is
controlled through various methods depending on the task (isolated
operation / synchronization). The subsequent screens of this function
are displayed.
OFF.............. Control is not carried out, and the subsequent screens of this function
are not displayed.
Parameter 33
f-contr. active
at: 00.0Hz
f controller: starting frequency 0.0 to 70.0 Hz
The frequency controller is activated when the generator frequency has exceeded
the value configured here. The undesired adjustment of the set point value of a
lower-level controller can therefore be overridden when starting the engine.
Parameter 34
Delay time for
f-contr. 000s
f controller: delayed start 0 to 999 s
The time set in this parameter must expire before the frequency controller is en-
abled.

Woodward GCP-20 Series Specifications

General

Brand	Woodward
Model	GCP-20 Series
Category	Control Unit
Language	English