Woodward GCP-20 Series User Manual

Manual 37128A GCP-20 Series - Genset Control
© Woodward Page 85/190
External Set Point Value (Option X)
The generator real power set point value may be monitored via an analog input if this analog inputs is utilized as
a 0/4 to 20 mA input.
Parameter 65
Power setpoint
external OFF
Option X only
P set point value: external set point value ON / OFF
ON................ If this parameter is configured to "OFF" a generator real power set
point value is not monitored via the 0/4 to 20 mA input to the con-
trol. The analog inputs can be used either as a mains interchange (im-
port/export) real power actual value or as freely configurable alarm
inputs. If terminal 5 is utilized, the internal set point value 2 "P
set2
"
(
Parameter 27) is used as set point value. The subsequent screens of
this function are not displayed.
OFF.............. If this parameter is configured to "OFF" a generator real power set
point value is not monitored via the 0/4 to 20 mA input to the con-
trol. The subsequent screens of this function are not displayed.
Parameter 66
Analog input
0-00mA
Option X only
P set point value: range 0 to 20 / 4 to 20 mA
The analog input of the real power controller can be switched here between
0 to 20 mA and 4 to 20 mA depending on the set point source.
0 to 20 mA ... Minimum value of the set point at 0 mA; maximum value at 20 mA.
4 to 20 mA ... Minimum value of the set point at 4 mA; maximum value at 20 mA.
CAUTION
The interchange real power set point may also be scaled. When controlling the interchange power, it is
vital to ensure that C power is not entered simultaneously with I or E power when scaling the external
analog input.
External setpoint 0/4 mA C I E I E
External setpoint 20 mA C I E E I
Parameter 67
Ext.setpoint
0mA 0000kW
Ext.setpoint
4mA 0000kW
Option X only
P set point value: scaling minimum value C /I/E 0 to 9,999 kW
The minimum value of the generator real power is defined here (e.g. 0 kW).
Parameter 68
Ext.setpoint
20mA 0000kW
Option X only
P set point value: scaling maximum value C/I/E 0 to 9,999 kW
The maximum value of the generator real power is defined here (e.g. 100 kW).
Three-Position Controller
Parameter 69
Power controller
dead band 00.0%
P controller: dead band 0.1 to 25.0 %
In a mains parallel operation, the real power is controlled in such a manner in its
regulated state that the actual value does not deviate from the generator real power
set point value by more than the percentage value of the sensitivity setting. In this
case, the percentage value refers to the generator rated power (
Parameter 17).

Woodward GCP-20 Series Specifications

General

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