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Condition
Generator Switch is
in the OFF Mode.
System Ready for
Automatic Start
Generator Switch is
in the MANUAL Mode
Weekly Exerciser
is not set
Battery Voltage <12.2V
for >1 minute
Battery Voltage <6V
Unit Shutdown due
to Low Oil Pressure
Unit Shutdown due to
High Coolant Temperature
or Low Coolant Level
Unit Shutdown due
to Engine Overspeed
Unit Failed to Start
during it's Crank Cycle
Utility Voltage is
<45% of Nominal
Engine Speed Signal Fault
Control Board is
in GTS Mode
3.3
ENGINE GOVERNOR GAIN
ADJUSTMENTS
Engine speed governing is also controlled by the
engine control board. The engine governor has been
set by the factory during final testing of the generator
and should not be adjusted.
If, however, adjustments are necessary, the following
procedure should be followed (Figure 3.2 and Section
3.7):
1. Move DIP switch 8 to the TEST mode (OFF posi-
tion).
2. Set all three potentiometers (pots) fully counter-
clockwise.
3. Under no load condition, increase the GAIN pot
as much as possible without causing instability.
4. Apply 1/4, 1/2, 3/4 and full load to the unit.
Decrease the GAIN pot if there is instability at any
load point.
5. Under full load condition, increase the stability
pot until the unit returns to 60 Hertz (or 50 Hertz
in 50 Hertz applications).
16
Section 3 - Operation
Liquid-cooled 15, 20 and 25 kW Generators
System
Low
Ready (Green)
Bat (Red)
OFF
X
ON
X
OFF
X
X
Flashing
(-----------------------------------1 sec rate---------------------------------------)
X
ON
(Non-latching)
OFF
ON
OFF
X
OFF
X
OFF
X
OFF
X
Flashing
X
1 sec rate
OFF
X
OFF
X
X = indicates that the LED can be ON or OFF depending on the operating conditions.
Low
High
Oil (Red)
Temp (Red)
OFF
OFF
OFF
OFF
OFF
OFF
Flashing
Flashing
ON
ON
The five RED LED's will turn on one at a time
Figure 3.2 — Control Board Dip Switch Location
Over
Over
Speed (Red)
Crank (Red)
OFF
OFF
OFF
OFF
OFF
OFF
Flashing
Flashing
ON
ON
Flashing
Switch Position
Manual
Auto
Off
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
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