Technical Documentation
Electronics
Training Documentation for
Electronic Engine Control Unit ECU-7
(ADEC)
Functional Description
T000001/01E
Printed in Germany
© 2007 Copyright MTU Friedrichshafen GmbH
This Publication is protected by copyright and may not be used in any way whether in whole or in part without the
prior written permission of MTU Friedrichshafen GmbH. This restriction also applies to copyright, distribution,
translation, microfilming and storage or processing on electronic systems including data bases and online services.
This handbook is provided for use by maintenance and operating personnel in order to avoid malfunctions or
damage during operation.
Subject to alterations and amendments.
Table of Contents 01
1 The engine governor ........................................................... 03
1.1 Engine governor ECU 7 – ADEC ............................................ 03
1.2 Inputs and outputs of the ECU 7 engine governor ............................. 06
1.3 Installation on engine ..................................................... 21
2 The dialog system ............................................................. 23
2.1 The dialog system DiaSys
®
................................................ 23
3 Parameter .................................................................... 25
3.1 Purpose and structure .................................................... 25
4 Functions of the engine governor ................................................. 35
4.1 Start sequence .......................................................... 35
4.2 Functions of the engine governor ........................................... 43
4.3 Test functions ........................................................... 47
4.4 Specified speed formation functional description .............................. 51
5 Configurations of the function areas .............................................. 65
5.1 Editing the input and output setting ......................................... 65
5.2 1D parameters ........................................................... 103
5.3 2D parameters ........................................................... 185
5.4 3D parameters ........................................................... 193
5.5 Alarm parameters ........................................................ 198
5.6 Setting the oil pressure differential measurement ............................. 217
5.7 Monitoring and Protection Module .......................................... 218
5.8 Index .................................................................. 243
T000001/01E 2007-08 © MTU
02 Table of Contents
T000001/01E 2007-08 © MTU
The engine governor 03
1 The engine governor
1.1 Engine governor ECU 7 – ADEC
General information
To control and regulate a diesel engine, a large number of measurement variables and control signals
have to be recorded, evaluated and processed. This information can either be generated on the engine
side (e.g. operating data such as pressure and temperatures) or on the system side, i.e. by devices
of a higher-order system, which determine how the diesel engine behaves.
* alternative
SAM Connection with its own processor
assembly
MAU Passive connection module
CAN Redundant data bus (Controller
Area Network)
I/O Terminal strip for distribution of
input and output signals
M Starter
G Battery-charging generator:
24 VDC On-board battery
CS Customer-provided control system
(Customer System)
The ECU 7 engine governor was designed and developed to cover a large number of applications and engine types.
Application
The term "application" is used to describe the environment in which the engine (and thus the governor)
is used. MTU engines are designed and adapted for the following applications:
• Marine
These are drive motors for the ship’s main drive.
• Rail
T000001/01E 2007-08 © MTU
04 The engine governor
Engines for railroad vehicles are used for diesel-electric drives or diesel-hydraulic drives. Diesel-electric drives
are basically engines that drive a generator to produce operating voltage. This generator package is geared to
the special requirements of a locomotive drive. In the case of diesel-hydraulic drives, a hydraulic pump is driven.
• Genset
Gensets for current generation are either stationary or mobile plants. Mobile plants are used, for example, in
ships for on-board power generation (marine gensets") or in power containers for autonomous power generation.
Stationary plants are used, for example, as emergency power units or in combined heat and power plants.
• C&I
The term C&I covers industrial engines, which can be used in many areas, e.g. excavators or
off-highway dump trucks. These engines generally drive generators or hydraulic pumps in a
vehicle. These engines are normally delivered to the manufacturer of these vehicles, who then
have to adapt the engine and its characteristics to their application.
Engine types
ZZ Number of cylinders
T Cylinder arrangement (type)
BBBB Series
A Application
SK Power class
The term "engine model" refers to the series and the main features of the engine (number
of cylinders, characteristics, usage, etc.).
Series
The engine governor described in this documentation is presently used for:
• 2000CR series
• 4000 series
Main features
These engines have the following main features and are supplied for the following purposes:
• 8V, 10V, 12V, 16V and 20V
• Application:
• Marine
• Rail
• Genset
• C&I (industrial engines, mining trucks, excavators, etc.)
• Power class (16 ..... 93)
Adaptation of the engine governor
In order that the engine governor can be adapted to this wide variety of requirements, it has been developed
so that all functions and interfaces to the engine and the plant can be modified.
Furthermore, approx. 4000 different parameters can be set in the ECU. Some of these parameters must be adapted
directly to the engine, or match a specific engine exactly. These parameters can only be accessed or changed by
MTU. However, a large number of settings can be made by Customer Service, the OEM or the final customer.
T000001/01E 2007-08 © MTU
The engine governor 05
This documentation is designed to help this person subgroup, following appropriate training, to adjust the
parameters that have been activated for them in accordance with their requirements.
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06 The engine governor
1.2 Inputs and outputs of the ECU 7 engine governor
Block diagram
X1 Connection for plant inputs/outputs,
CAN
X2 Connection for engine wiring
harness, sensors
X3 Connection for plant, ignition
and supply
X4 Connection for engine wiring
harness, injectors
W1 Plant cables inputs/outputs, CAN
W2 Engine wiring harness, sensors
W3 Plant cables, ignition and supply
W4 Engine wiring harness, injectors
IO21...45 Outputs for injectors
PWM1..2 Pulse width modulated outputs
PWM_CM1...2Pulse width modulated
outputs with current monitoring
PI1...14 Pressure measurement inputs
CAN_E CAN bus connection, engine side
*
PTI Pressure or torque input
(programmable)
PFI1...3 Pressure or frequency input
(programmable)
LSI1...3 Inputs for level sensors
ASI1...2 Analog frequency inputs for
speed measurement
FI1...4 Frequency measurement inputs
TO1...4 Transistor outputs
TI1...12 Temperature measurement inputs
DI1...8 Binary inputs
ESI Emergency stop input
FIP Frequency input
AI1..2 Analog inputs
AO1...2 Analog outputs
TOP1...4 Transistor outputs
FO Frequency outputs
CAN1_P, CAN2_PCAN bus connection,
plant side
IGI Ignition input
24V Input for voltage supply
*
In future, a bus-compatible module for distributing the high-power supply in the 24 V area
(starter, battery-charging generator) will be connected (POM).
The illustration shows the main wiring for the engine governor. The sensors and actuators/solenoid
valves shown in block E ("Engine") are installed on the engine or on units belonging to the engine.
They are connected via the two wiring harnesses W2 and W4 to the two plug-in connectors X2 and
X4 of the engine governor ECU 7. Customer alteration is not possible.
The inputs and outputs shown in block P ("Plant") can be connected by the customer. Sensors and actuators from
the plant are connected here. If the target system has a CAN interface, it can also be adapted here.
T000001/01E 2007-08 © MTU
The engine governor 07
To arrange the connection as simply as possible, MTU generally supplies two cables (W1 and W3),
which are provided on one side with the matching connector (X1 and X3). The other end of each cable
is open, i.e. the customer can connect a terminal strip here. Signals that are to be interconnected on
the plant side can then be connected to the governor via this terminal strip.
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08 The engine governor
Number of inputs and outputs
Plant side
Designation Number Brief description (basis of abbreviation)
DI 8 Digital Input (±50 isolated)
ESI 1 Emergency Stop Input
FIP 1 Frequency Input Plant side
FO 1 Frequency Output (PWM) (low switch)
TOP 4 Transistor Output Plant side (high or low switch)
AO 2 Analog Output
AI 2 Analog Input
CAN_P 2 Controller Area Network Plant side
U_Batt 1 24 V power supply
IGI 1 Ignition Input (terminal 15)
Engine side
Designation Number Brief description (basis of abbreviation)
LSI 3 Level Sensor Input
TI 12 Temperature Input
PI 14 Pressure Input
PTI 1 Pressure Input or Torque Input
PFI 3 Pressure Frequency Input (hall/oil quality)
ASI 2 Angle Speed Input (frequency)
FI 4 Frequency Input
TO 4 Transistor Output engine side (high switch)
PWM_CM 2 Pulse Width Modulated output with Current Measurement
PWM 2 Pulse Width Modulated output
IO 20 Injector Output (4 banks)
CAN_E 1 Controller Area Network (Engine side)
T000001/01E 2007-08 © MTU
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