General Information
36949 B MMG25I-35D-45I-55DF4 Operating Manual 17
Generator Screen
The Generator screen displays the average voltage frequency, volts and amps from the generator, as well as line-
to-line voltage, and individual line-to-neutral voltage, amperage and power (kW). This screen also displays the
generator winding configuration set by the voltage selector switch in the lower right corner.
Figure 2-9. Generator Screen
Note: When loading the generator, it is important to observe the amperage to determine the load balance on each
line of the generator. Minor load unbalances, usually ten percent or less, will not cause problems. Every effort should
be made to distribute the load equally between all lines.
• Freq: Displays the output frequency in Hertz (Hz). Normal operating frequency is 60 Hz.
• Volts: Displays the nominal voltage in Volts (V).
• Amps: Displays the AC output amperage produced by the generator in Amps (A).
Additional information can be found on the electric power table at the bottom-left side of the screen. This provides
an overview of all three lines and average voltage and amperage readouts.
Voltage Adjust Screen
The Voltage Adjust screen displays the line-to-neutral and line-to-line voltage averages. The operator can electron-
ically adjust the voltage within limits to prevent under-voltage or over-voltage conditions using the on-screen
instructions. This feature replaces a traditional potentiometer. Refer to Shutting Down the Unit for more information.
Figure 2-10. Voltage Adjust Screen
00395
Manual Mode
GEN
V
+
-
Parallel Low Zig-Zag
L1 (U)
L2 (W)
N
Volt Volt Amp kW
L1-L2 L1
L2-L3 L2
L3-L1 L3
IE
0
0
0
0
0
0
0
0
50
25
0.0
0.0
0.0
AmpVolt
Freq
0
10
20
30 40
50
60
70 0
88
175
263
350 0
13
25
38
50
00396
Manual Mode
GEN
V
+
-
Voltage Adjust
- Press , voltage will begin flashing
- Use and arrows to adjust voltage
- Press to confirm new voltage. Numbers will stop flashing
L-N Average
L-L Average
480
277
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