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Engine Controller
The Engine Control panel is shown in Figure 4-5. The control is used to start and stop the
engine and indicate fault conditions, automatically shutting down the engine and indicating the
failure by LED. An integral anti−tamper engine hours counter and LCD display is also provided.
Low Oil Pressure Shutdown
Alternator Charge Failure Warning
High Coolant Temp Shutdown
Note: Operation of any alarm (Low Oil Pressure, High Engine Temperature, Aux Input or
Panel Description
Over Speed
Aux Input Active
Low Oil Pressure
Alternator Charge Failure On displays low battery voltage condition at the battery.
High Coolant Temp
Pre−Heat
Engine Hours Display
Engine Start Switch
Key Switch
Note: The Safety On time (used for delayed alarms) is preset to 12 seconds.
MN2488
Figure 4-5 Engine Controller Panel
Over Speed Shutdown
Aux Input Active
Pre−Heat Switch
Overspeed) will cause the run output to de−energize and stop engine operation:
(see Figure 4-5)
On indicates engine speed exceeds the pre−set trip (14% above
nominal frequency) and shutdown is initiated. Overspeed is not
delayed, it is an immediate shutdown.
On indicates the auxiliary input is active preventing the start of the
generator. If generator is running, if the auxiliary input is energized an
immediate shutdown will occur. (Optional connections).
On displays low oil pressure condition. After the Safety On timer has
expired, a shutdown will occur.
On indicates engine coolant temperature has exceeded the high engine
temperature switch setting, after the Safety On timer has expired, a
shutdown will occur.
Pressing the pre−heat button will energize the engine glow plugs.
Releasing the button will de−energize the output to the glow plugs.
Displays total hours of engine operation. Only displayed in Run Position
of Key switch.
Press to energize the Fuel Solenoid and the Starter Motor output.
The switch should be pressed for the duration of the crank period. The
starter motor is disengaged and locked out at 20 Hz measured from the
Alternator output.
Stop Position de−energizes the Fuel Solenoid, bringing the generator to
a stop.
Run Position applies power to the control module and allows Start/Run
operation.
RUN
Position
Key
STOP
Switch
Position
Engine Hours Display
Engine Start Switch
Operation 4-5
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