Generac Power Systems MAGNUM MMG75D Operating Manual page 19

Generator Button
The Generator ( ) button displays the average voltage frequency, volts and amps from the generator, as well as
GEN
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.
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 any particular 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 Button
The Voltage Adjust (
+ -
V
electronically adjust the voltage within limits to prevent under-voltage or over-voltage conditions using the on-screen
instructions. This feature replaces a traditional potentiometer. See
Alarm Mute Button
The Alarm Mute ( ) button silences the audible alarm. Additional action will be required to fully disable the active
alarm.
33701 C
30 40
20 50
10
GEN
Freq
0 70
+ -
V
Volt Volt
0
L1-L2 L1
0
L2-L3 L2
0
L3-L1 L3
IE
Figure 2-8. Generator Button Screen
) button displays the line-to-neutral and line-to-line voltage averages. The operator can
Voltage Adjust
- Press , voltage will begin flashing
- Use and arrows to adjust voltage
- Press to confirm new voltage. Numbers will stop flashing
GEN
480
+ -
V
277
Figure 2-9. Voltage Adjust Button Screen
MMG75D-100D Operating Manual
Manual Mode
175
88 263 13
60
Volt
0 350 0
Parallel Low Zig-Zag
Amp kW
0 0.0
0
0 25 0.0
0 50 0.0
L1 (U)
0
Fine Voltage Adjustment
Manual Mode
V
L-N Average
V
L-L Average
General Information
25
38
Amp
50
N
L2 (W)
00395
for more information.
00396
13