Product Manual

Owner’s Manual for MDG25IF4 19
General Information
Figure 2-8. Engine Screen
NOTE: If the measured value is outside the range of a
gauge, the needle will not be displayed. The digital value
below the gauge will still show the measured value.
• Oil Press: Displays engine oil pressure. Current
coolant temperature displays directly below the
gauge at all times. The gauge registers oil pressure
between 0–100 psi (0–689 kPa). Normal operating
pressure is between 35–80 psi (241–552 kPa).
• Coolant Temp: Displays engine coolant
temperature. Current coolant temperature displays
directly below the gauge at all times. The gauge
displays coolant temperature between 150–250 °F
(66–121 °C). Normal operating temperature of the
unit is between 180–200 °F (82–93 °C) with an
average ambient air temperature of 70 °F (21 °C).
• Battery: Displays the engine battery voltage.
Current battery voltage displays directly below the
gauge at all times. The gauge displays battery
voltage between 0–50V. A normal reading is 12–
14V on 12 volt systems and 24–26V on 24 volt
systems (with the engine running).
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 imbalances,
usually 10% 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 unit automatically fine tunes voltage upon start-up
after the output voltage is selected and the unit is started.
See Voltage Selector Switch. The voltage can be
manually fine tuned as needed. See Fine Voltage
Adjustment.
The voltage adjust screen displays the line-to-neutral and
line-to-line voltage averages. The operator can
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.
GEN
V
+
-
Maintenance
Alarm Hours Description Action
1 174 To Service Oil Maintenance
2 174 To Service Fuel Maintenance
3 174 To Service Air Maintenance
Oil press. Coolant Temp. Battery
Manual Mode
Hrs
13.8 V
0
10
20 30
40
50150
170
190 210
230
250
°F 214 PSI 50.9
100
0
20
40 60
80
0 0 3 2 5 1 5
Warning
Shutdown
Electrical Trip
002788
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
002789