Product Manual
Table Of Contents
- Section 1: Introduction and Safety
- Section 2: General Information
- Section 3: Operation
- Pre-start Checklist
- Manually Starting the Unit
- AUTO (Remote) Starting the Unit
- Wet Stacking
- Cold Weather Operation
- Using a Booster Battery or Charger (if equipped)
- Generator Output Connections
- Generator Cam Lock Connections (If Equipped)
- Using the Voltage Selector Switch
- Fine Voltage Adjustment
- Voltage Regulator
- Achieving 240V Three-Phase in 208V Three-Phase (Parallel Low Wye) Configuration
- Customer Convenience Receptacles
- Main Circuit Breaker
- Transfer Switch
- AUTO Exercise Timer
- Shutting Down the Unit
- Emergency Stop Switch
- Idle Switch
- Using the ECU Override Switch
- Towing the Unit
- Lifting the Unit
- Section 4: Maintenance
- Section 5: Troubleshooting
- Section 6: Wiring Diagrams and Service Log
- Wiring Diagram - 3 Position AC Box
- Wiring Diagram - 4 Position AC Box
- Wiring Diagram - Receptacles
- Wiring Diagram - Engine Heater
- Wiring Diagram - Wiring Buck (If Equipped)
- Wiring Diagram - Power Zone PMG
- Wiring Diagram - Power Zone Control Box
- Wiring Diagram - Trailer Lights
- Wiring Diagram - Brake Wiring
- Wiring Diagram - 12V Battery Charger
- Wiring Diagram - Power Zone Low Oil Level (If Equipped)
- Service Log
Owner’s Manual for MDG25IF4 21
General Information
Alarms Tab
The alarms tab displays warnings, electrical trip,
shutdown alarms, and any engine diagnostic trouble
codes (DTC) that are occurring or have occurred. The
first page displays the alarms that are currently active
and organizes them by alarm type.
Figure 2-14. Alarms Tab Screen (Page One)
The second page of the alarms tab shows the event log
with a list of events, including normal operation events
and alarm notifications. The most recent events are listed
first. All indexed events include the date and time of the
event, and hours of runtime on the engine when it
occurred, along with the event name or alarm type and
details.
Figure 2-15. Alarms Tab Screen (Page Two)
To scroll down within the event log, press the ENTER ()
button. The scroll bar will activate and change to blue.
Press the ▲ or buttons to scroll up or down in the
event log. Press the ENTER () button again when
finished.
Input/Output Tab
The input/output (I/O) tab shows a list of digital inputs and
outputs connected to the controller, whether they are
active or not, and the current state (open/closed status)
of the input and output.
Figure 2-16. Input/Output Tab Screen
Table 2-3. Diagnostic Trouble Codes
Alarm
Type
Color–
Background/Text
Graphic
Warning Yellow/Black
Electrical
Trip
Purple/Black
Shutdown Red/Black
ECU
Code
Blue/White
GEN
V
+
-
SITE GENSET 7741 \ 7740
07:10
480V/277V 3-Phase
Return Delay 10:00:00
0.0
Hz
Total Generator
kWh+
kVAh
kVArh
kW
kVA
kVAr
pf
0.0
0.0
0.0
0.0
0.0
0.0
0.00
0.0
%
%
0.0
kW
kVAr
StatusSchedule
I/O
AlarmsEngine Generator
1/2
Warning Shutdown Electrical Trip
Engine
002793
Warning
Electrical Trip
Shutdown
Engine
GEN
V
+
-
SITE
GENSET
7741 \ 7740
07:10
480V/277V 3-Phase
Return Delay 10:00:00
0.0
Hz
Total Generator
kWh+
kVAh
kVArh
kW
kVA
kVAr
pf
0.0
0.0
0.0
0.0
0.0
0.0
0.00
0.0
%
%
0.0
kW
kVAr
Status
Schedule
I/O
AlarmsEngine Generator
2/2
Warning
Shutdown
Shutdown
Shutdown
Shutdown
Shutdown
Shutdown
Shutdown
Shutdown
Shutdown
Shutdown
Shutdown
Shutdown
This is an event index 1
This is an event index 2
This is an event index 3
This is an event index 4
This is an event index 5
This is an event index 6
This is an event index 7
This is an event index 8
This is an event index 9
This is an event index 10
This is an event index 11
This is an event index 12
This is an event index 13
1 01/01/1970 00:00:01 0:00
2 02/06/1970 11:45:55 0:00
3 01/01/1970 00:00:00 0:00
4 01/01/1970 00:00:00 0:00
5 01/01/1970 00:00:00 0:00
6 01/01/1970 00:00:00 0:00
7 01/01/1970 00:00:00 0:00
8 01/01/1970 00:00:00 0:00
9 01/01/1970 00:00:00 0:00
10 01/01/1970 00:00:00 0:00
11
12 01/01/1970 00:00:00 0:00
13 01/01/1970 00:00:00 0:00
01/01/1970 00:00:00 0:00
Index Date Time Hrs Event Details
002794
GEN
V
+
-
SITE GENSET 7741 \ 7740
07:10
480V/277V 3-Phase
Return Delay 10:00:00
0.0
Hz
Total
Generator
kWh+
kVAh
kVArh
kW
kVA
kVAr
pf
0.0
0.0
0.0
0.0
0.0
0.0
0.00
0.0
%
%
0.0
kW
kVAr
StatusScheduleI/OAlarmsEngine Generator
1/38
Digital Inputs
Ip Description Active State Ip Description Active State
A
B
C
D
E
F
H
I
J
G
K
002795