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Governor Control
The electronic control board provides power to the
actuator. It also controls energizing and de-energizing of
the fuel— anti-diesel (AD) solenoid or gas valve.
Prior to any governor adjustments:
1. Open the line circuit breaker between the generator
and any loads which may be frequency sensitive.
2. Connect a frequency meter to the generator AC
output in order to monitor AC output while making
adjustments.
Speed Adjustment
Turn speed potentiometer clockwise to increase speed,
counterclockwise to decrease speed. See Figure 7.
OVER
SPEED
GAIN
4-Pole Generators
60 Hz = 1800 RPM
50 Hz = 1500 RPM
Figure 7. Speed Potentiometer
SB-555 5/96
SPEED
TP-5572-6
Gain Adjustment
The Gain Potentiometer (Pot) pertains to governor
sensitivity. See Figure 8.
Figure 8. Gain Potentiometer
D Move Gain Pot in 1/8-turn increments if hunting or
surging occurs.
D Changing the Gain Pot setting may affect the
governor Speed Pot.
D Governor Speed Pot adjustment will not affect
the Gain Pot.
GAIN
TP-5572-6
5
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