Part No. 80106286
Revision C
33
Maintenance
Servicing the System
15-Amp Fuse
Ensure that the fuse is correctly installed before operating
the generator.
Automatic Operation Sequence
The generator’s controller monitors utility voltage. If the
utility voltage drops below a preset level, the controller
signals the engine to crank and start. When the utility
voltage restores above a preset voltage level, the
engine receives signals to shut down. The actual system
operation is not adjustable and undergoes sequencing
by sensors and timers on the controller in the following
manner:
Utility Voltage Dropout Sensor
• This sensor monitors the utility source voltage.
• If the utility source voltage drops below approximately
70% of the nominal supply voltage, the sensor initiates
a timer.
• The engine cranks and starts once the timer has
expired.
Utility Voltage Pickup Sensor
This sensor monitors the utility voltage. When the utility
voltage restores above approximately 80% of the nominal
source voltage, a shut-down timer initiates and the
engine cools down.
Engine Cool-down Timer
When the system senses the utility power, the load
transfers to the utility source and the engine enters a five-
minute cool-down period.
Setting the Exercise Timer
1. Push and hold the stop/config button (
B
).
2. Push the start/select button (
C
) to enter “
write
”
mode.
3. Enter the password (0000) by using the arrow keys
(
A
) and the start/select button (
C
).
4. In the configuration screen use the arrow keys (
A
) to
find
module
.
5. Push the start/select button (
C
) and, using the arrow
keys (
A
), find
auto exercise
.
6. Push the start/select button (
C
) and, using the arrow
keys (
A
), select each parameter and choose the
desired settings.
7. Push and hold the stop/config button (
B
) to save
your settings.
Figure 22
A detailed list of all the on-screen parameters appears
in the Configuration of GCU section inside the online
Operation Instructions GC1030 SERIES GENSET Controller
Manual
(part number 80086364).
MAINTENANCE
Servicing the System
WARNING
Generator voltage could
cause electrical shock or burns, resulting in death or
serious injury.
• DO NOT allow unqualified people to operate or
service the generator.
WARNING
With the battery connected,
the generator may crank and start without warning,
resulting in death or serious injury.
• Before servicing, stop the generator and
disconnect the negative (-) cable at the battery.
Always follow these steps before performing any
generator maintenance:
1. Push the ON/OFF switch on the back of the
generator to the OFF (0) position.
Not for
Reproduction
