Manual 37259C
SPM-D11 - Synchronizing Unit
© Woodward
Page 35/79
6
f-
Color: yellow
Governor output decrease frequency
Three position controller
The LED "f-" indicates if the control outputs a pulse to decrease the fre-
quency. The status of the LED corresponds to the status of the relay "speed
lower".
Analog controller
If the actuator output signal of the controller is changing to reduce the fre-
quency, the LED illuminates.
7
f+
Color: yellow
Governor output increase frequency
Three position controller
The LED "f+" indicates if the control outputs a pulse to increase the fre-
quency. The status of the LED corresponds to the status of the relay "speed
raise"."
Analog controller r
If the actuator output signal of the controller is changing to increase the fre-
quency, the LED illuminates.
8
V-
Color: yellow
Governor output reduce voltage
Three-position controller
The LED "V-" indicates if the control outputs a pulse to decrease voltage.
The status of the LED corresponds to the status of the relay "voltage lower".
Analog controller
If the actuator output signal of the controller is changing to reduce the volt-
age, the LED illuminates.
9
V+
Color: yellow
Governor output increase voltage
Three-position controller
The LED "V+" indicates if the control outputs a pulse to increase
voltage. The status of the LED corresponds to the status of the relay
"voltage raise".
Analog controller r
If the actuator signal of the controller is changing to increase the
voltage, the LED illuminates.
10
Gen CB - ON
Color: green
Power circuit breaker ON
The LED "Gen CB - ON" signals the response of the generator cir-
cuit breaker. The LED illuminates if the discrete input "Reply: CB is
open" is not energized and will extinguish as soon as the discrete in-
put is energized. (see also chapter "LED "Gen CB - ON" Flashes" on
page 27).
11
Bus CB – ON
here: non-functional
Color: green
Mains power circuit breaker ON
NOTE
: This LED is non-functional, as this is a "One-power-circuit-
breaker configuration".