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Operation
24 MMG130DI4/175DI4/205DI4 Operating Manual 33722 D
3. When the software is loaded, the Home screen will be displayed and the controller will be in Stop mode as
indicated at the top of the screen. Press the Auto/Manual Mode ( ) button to enter Manual mode.
Figure 3-2. Home Screen
Note: The controller can be started from any screen when it is in Manual mode.
4. Pressing the green Engine Start (I) button on the controller will initiate the startup procedure and start the
engine, provided there are no engine faults preventing the unit from starting.
Note: It may take a few seconds for the engine to run smoothly and reach its governed operating speed. During this
time, the screen will show a voltage different from that set with the voltage selector switch.
5. If the engine does not start after the first cranking attempt, the engine will pause for 15 seconds to allow the
starter to cool. The LCD window will show “Manual Mode - Crank Rest” at the top of the screen. The engine
will make two more attempts to start for a total of three crank cycles.
6. Should the engine not start and run within three starting cycles, the LCD window will show the “Fail to Start”
alarm. The starting sequence may be repeated after the starter has had a minimum of two minutes to cool.
Pressing the Enter () button will clear the alarm and reset the controller.
Note: The engine controller may skip the preheat engine steps on some of the larger models.
7. Once the engine starts, it will immediately begin speeding up to a constant 1800 rpm. The engine may hunt
or change speeds until operating speed is reached. After a few minutes of operation, the engine will be
warmed up and the operator screens will show engine and generator operating parameters.
8. Check the generator for excessive noise or vibration and any coolant, oil, or fuel leaks before applying any
loads.
9. Check that the AC output voltage is correct. The output voltage can be fine adjusted by using the Voltage
Adjust screen as described on Fine Voltage Adjustment.
10. Check that the frequency (Hz) is correct on the Generator screen. With no loads connected to the generator,
the frequency should read approximately 60 Hz, depending on the type of engine governing used.
11. If all wiring connections have been made correctly, switch the main circuit breaker to ON (I) and then add
any loads attached to the receptacles by switching the respective circuit breaker to ON (I). You will notice a
slight change in engine sound when a load is applied to the unit.
00415
Stop Mode
3 PHASE
Volts
Amps
0
0
0.0 kW
%
0
10
100
110
20
30
40
50
60
70
80
90
Time to Empty
15 hr
Full
3/4
1/2
1/4
Empty
74
%
GEN
V
+
-
30


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