Woodward GCP-30 Series Configuration

Manual 37278B GCP-30 Series - Genset Control
© Woodward Page 39/174
Parameter 61
Stepper sign.frq
(max.) 000%
PackageQ, Option Q only
f controller: maximum value 0 to 100%
This parameter permits the operator to clamp or limit the upper analog output val-
ue.
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 62
Freq.controller
gain Kpr 000
Package Q, Option Q only
f controller:P gain 1 to 240
The proportional coefficient specifies the gain. By increasing the gain, the response
is increased to permit larger corrections to the variable to be controlled. The farther
out of tolerance the process is the larger the response action is to return the process
to the tolerance band. If the gain is configured too high, the result is excessive
overshoot/undershoot of the desired value.
Parameter 63
Freq.controller
reset Tn 00.0s
Package Q, Option Q only
f controller: Reset time 0.0 to 60.0 s
The reset time T
n
identifies the I part of the PID controller. The reset time corrects
for any offset (between set point and process variable) automatically over time by
shifting the proportioning band. Reset automatically changes the output require-
ments until the process variable and the set point are the same. This parameter per-
mits the user to adjust how quickly the reset attempts to correct for any offset. The
reset time constant must be greater than the derivative time constant. If the reset
time constant is too small, the engine will continually oscillate. If the reset time
constant is too large, the engine will take to long to settle at a steady state.
Parameter 64
Freq.controller
derivat.Tv 0.00s
Package Q, Option Q only
f controller: Derivative-action time 0.00 to 6.00 s
The derivative-action time T
V
identifies the D part of the PID controller. By in-
creasing this parameter, the stability of the system is increased. The controller will
attempt to slow down the action of the actuator in an attempt to prevent excessive
overshoot or undershoot. Essentially this is the brake for the process. This portion
of the PID loop operates anywhere within the range of the process unlike reset.
Voltage Controller
Parameter 65
Starting point
voltage 000%
Package Q, Option Q only
V controller: initial state 0 to 100 %
Analog controller output setting with disabled controller. The set value in percent
refers to the range between minimum and maximum value of the output signal (see
Parameter 75 and Parameter 76).
Parameter 66
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.

Woodward GCP-30 Series Specifications

General

Brand	Woodward
Model	GCP-30 Series
Category	Controller
Language	English