Woodward GCP-30 Series User Manual

Manual 37365A GCP-30 Series Packages - Genset Control
© Woodward Page 29/179
Mains power actual value measurement via analog input (XPD, XPQ)
The actual value measurement of the mains power via an analog input T{x} [x = 1 to 7] is possible if at least
one of the analog inputs T{x} [x = 1 to 7] is a 0/4 to 20 input. Selection of the analog input is performed with the
following parameters.
Parameter 24
Analog in Pmains
OFF
Analog input P-mains: Selection OFF / T{x}
OFF .............. The mains power analog input functionality is not used. The actual
value for the mains interchange (import/export) real power is calcu-
lated from the measured mains current and the measured mains vol-
tage. The analog inputs can either be used as real power set point in-
puts or as freely configurable alarm inputs. The following screens of
this function are not displayed.
T{x} .............. The mains interchange (import/export) real power actual value can
be transmitted as a 0/4 to 20 mA signal to the control from a measur-
ing transducer and measured via the configured scalable 0/4 to
20 mA input T{x} ({x} = 1 to 7). The controller will not accept other
types of analog signals for this function (i.e. 0 to 5 Vdc). The follow-
ing screens of this function are displayed.
Note
The analog input used (T{x}) for the mains power analog input must be configured
as follows:
• "Generator external power set point" (Parameter 78) must be configured as OFF.
• "Anal
og input {x} scalable" (Parameter 215) must be configured as OFF (refer to
t
he "Analog inputs" section in this manual).
• The GCP-30 may be purchased with various types of analog inputs. If the con-
troller being configured has analog inputs, only a 0/4 to 20 mA input may be used
for this input.
• Due to the fact that LeoPC1 is not a dynamic program, the graphic display of the
generator/plant does not automatically update to reflect any changes made during
reconfiguration. To update the program’s graphical display, LeoPC1 must be
shutdown and restarted.
Priority of the functions of the analog inputs
If more than one function has been assigned to a analog input, the following is the
priority that the control assigns to functions:
• Highest priority: Mains interchange (import/export) real power actual value
• Middle priority: Generator real power set point value
• Lowest priority: Measuring input as common analog value

Woodward GCP-30 Series Specifications

General

Brand	Woodward
Model	GCP-30 Series
Category	Controller
Language	English