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Events
No.
Specification
26 Underspeed
27 Vgen<, >
28 Vgen unbal
29 Wrn ECU Alarm
30 Wrn RA15 fail
31 WrnMaintenance
32 CheckDPFStatus
MAGNUM DIGITAL CONTROLLER (MDC) – HISTORY
The Magnum Digital Controller (MDC) stores a record of each important event in the history file of the controller. The
history file seats 117 records. When the history file is full, the oldest records are removed.
Record Structure
No.
Abbreviation
1
AIM1
2
Date
3
OilP
4
FC
5
Vg2
6
RPM
7
Ig2
8
Ubat
9
FMI
10
EngT
JOHN DEERE ECU INFORMATION DISPLAYS AND FUNCTIONS
This unit has a John Deere Electronic Engine Control Unit (ECU) which regulates the engine speed (RPM) and
constantly monitors vital engine functions for a number of operation, alarm and fault conditions. When an operation,
alarm or fault condition occurs, the Liquid Crystal Display (LCD) window will alert the operator either visually or
audibly. In addition to the "Alarm List," there is an "ECU Alarm List" which will list any faults specified by the John
Deere ECU.
Press the "" scroll-up button (on the diagnostic keypad) to view the "ECU Alarm List." This will allow the operator
to view a description of the fault, along with the diagnostic trouble codes located at the bottom of the display. Refer
to Figure 1. To further identify a fault by using these codes, refer to the John Deere Operator's Manual supplied with
32
Information on
Protection
Binary Output
Type
Available
SD
YES
SD
YES
SD
NO
WRN
NO
WRN
NO
WRN
NO
WRN
NO
IG-IOM, IGS-PTM analog input 1 value (when configured IG-IOM, IGS-PTM)
Date of historical event in format DD/MM/YY
IL-NT analog input 1 value (default: oil pressure)
ECU alarm FailureCode
Generator voltage L2
Engine speed
Generator current L2
Battery voltage
ECU alarm failure mode identifier
IL-NT analog input 2 value (default: water temperature)
Description
During starting of the engine, when the RPM reaches
the value of Starting RPM setpoint, the starter is
switched off and the speed of the engine can drop
under Start RPM again. Then the Underspeed protec-
tion becomes active. Protection evaluation starts 5 sec-
onds after startup.
The generator voltage is out of limits given by Gen <V
and Gen <V setpoints.
The generator voltage is unbalanced more than the
value of Volt unbal setpoint.
ECU alarm list is not empty.
Warning alarm in case of lost connection to IGL=RA15
module.
The period for servicing is set by the WrnMaintenance
setpoint. The protection comes active if the running
hours of the engine reach this value.
Engaged when the Diesel Particulate Filter needs
attention.
Historical Value
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