Woodward GCP-20 Series User Manual

Manual 37128A GCP-20 Series - Genset Control
© Woodward Page 81/190
Voltage 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 42
Initial state
voltage 000%
Option QU only
V controller: initial state 0 to 100 %
Analog controller output setting with disabled controller. This value is used as an
initial value (e.g. when changing from a power factor controller to a voltage con-
troller).
Parameter 43
Actuating signal
Volt. min 000%
Option QU only
V 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 voltage 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 44
Actuating signal
Volt. max 000%
Option QU only
V 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 voltage 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 45
Volt.controller
ON
V controller: activation ON/OFF
ON................ Generator voltage control is carried out. The subsequent screens of
this function are displayed.
OFF.............. Generator voltage control is not carried out, and the subsequent
screens of this function are not displayed.
Parameter 46
V-contr. active
at: 000V
V controller: start voltage 50 to 400 V
The voltage controller will be enabled, once the generator voltage has exceeded
this value. This prevents an unintentional change of the set point of the voltage
regulator when starting the engine.
Parameter 47
Delayed time for
V-contr. 000s
V controller: delayed time for V controller 0 to 999 s
The start voltage of the voltage controller must exceed the threshold value for at
least this period of time.

Woodward GCP-20 Series Specifications

General

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