Iveco S30 Ent M23 Users Manual

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SOFIM
S30 ENT M23
4 cylinders in line
Diesel Cycle
For marine applications

INSTALLATION DIRECTIVE

T E C H N O L O G I C A L

E X C E L L E N C E

MAY 2006 EDITION

S30 ENT M23

INSTALLATION DIRECTIVE

FOREWORD
We strongly recommend that you carefully read the indications contained in this document: compliance with them
protects the engine against irregular operation and assures
its reliability, safeguarding sea-going and maintenance personnel against accident hazards.
The indications contained in this directive pertain to the S30
ENT M23 engines and complement the IVECO MOTORS
publication “Guide to the Installation of Marine Engines” the
reader should refer to, for anything that is not explained
herein.
For more complete information about the engine, please
refer to the appropriate technical brochure.
Use of fuels and oils with different characteristics from
those set out in the operation and maintenance manual may
compromise the regular operation of the engine, limiting its
performance, reliability and working life.
Exclusive use of IVECO Original Parts is a necessary condition to maintain the engine in its original integrity.
Tampering, making modifications and using non original parts
can jeopardize the safety of boat engineers and users.
To obtain spare parts, you must indicate:
- Commercial code, serial number and indications shown
on the engine tag;
- Part number of the spare as per spare part catalog.
The information provided below refer to engine characteristics that are current as of the publication date.
IVECO MOTORS reserves the right to make modifications
at any time and without advance notice, to meet technical or
commercial requirements or to comply with local legal and
regulatory requirements.
We refuse all liability
for any errors
and omissions.
The reader is reminded that the IVECO MOTORS Technical
Assistance Network is always at the Customer’s side with its
competence and professionalism.

Publication IVECO MOTORS edited by:
IVECO PowerTrain
Advertising & Promotion
Pregnana Milanese (MI)
www.ivecomotors.com
Printed P3D64S001 E - May 2006 Edition

MAY 2006

INSTALLATION DIRECTIVE

S30 ENT M23

CONTENTS

Page

1. WARNINGS AND CAUTIONS

2. ENGINE PARTS AND COMPONENTS

3. INSTALLATION OVERVIEW

4. GENERAL INSTALLATION CRITERIA

5. TECHNICAL DATA FOR INSTALLATION

6. IDENTIFICATION DATA

7. COMPONENTS SUPPLIED WITH THE ENGINE 13
8. FUEL LINE

9. ELECTRICAL EQUIPMENT

10. MAIN ANALOG INSTRUMENT PANEL

11. SECONDARY ANALOG INSTRUMENT PANEL 30
12. DRILLING PLANS FOR ANALOG PANELS

13. CUSTOMIZED INSTRUMENT PANEL

14. SENSORS FOR DETECTION
AND PANEL SIGNALING
34
15. PREPARING THE ENGINE
FOR FIRST START-UP
36
16. TESTS BEFORE THE FIRST START-UP

17. FIRST ENGINE START

18. EDC ANOMALIES INDICATION

19. BLINK CODE TABLE

20. UNDERWAY CHECKS

21. PREPARING THE ENGINE
FOR LONG IDLE PERIODS
42
22. WIRING DIAGRAMS

S30 ENT M23

INSTALLATION DIRECTIVE

MAY 2006

1. WARNINGS AND CAUTIONS
To obtain the best engine performance, it is essential not to
deviate from the mission profile for which it was produced
and set up. The engine must not be used for purposes other
than those stated by the manufacturer. IVECO MOTORS
is willing to examine any need for particular installations
beforehand. Use of an electronically controlled injection
system, in providing the engine with performance benefits,
requires that the installer and maintenance specialist comply
with some fundamental rules, which will become more and
more commonplace as use of such equipment becomes
progressively more widespread. Boat outfitters and maintenance specialists are invited to closely follow the instructions
contained herein. No modifications to the engine, its accessories and components, are allowed.

o Do not place voltage across the boat’s on-board electrical system without first verifying that there are no short
circuits.

Failure to comply with the instructions that follow shall
void the warranty and relieve IVECO MOTORS of all
liabilities.

o Do not paint electrical components and their connections.

For personnel safety

o Comply with prescribed procedures and torque values
when tightening threaded elements.

Specialists and installers are cautioned to comply with
workplace safety rules and to adopt prescribed individual
protection devices when working.
o Drain the cooling, lubrication and fuel lines only after
the fluids have duly cooled. The pressurized cap of the
water line may be opened only after the engine has duly
cooled.
o Batteries contain a highly corrosive sulfuric acid solution:
must never be upset and must be handled with the
utmost caution to prevent spillage. Ensure that the battery compartment is adequately ventilated.

Handling
The engine must be handled by experienced personnel,
using the prescribed tool or a rocker arm that keeps the
lifting lines parallel and with adequate equipment in terms
of capacity and size. The two eyebolts provided for lifting the
engine alone must always be used simultaneously.

Installation
o Knife switches or battery breakers may be used on the
power supply line of the engine electronic unit, provided
they are not used to shut the engine off.
o Do not modify the wiring harnesses; their length may
not be modified: use only available extensions.
o Do not use electronic device wiring harnesses not compliant with the IVECO MOTORS directive, in terms of
length, type of conductor, location, clamping, connection
of the shielding and earth braids.

o Do not branch pipes off to draw fuel from the engine
supply lines.
o Do not make any change to the engine’s hydraulic circuits and components.
o Do not execute arc welding operations before removing
the electronic units from their seating, placing them at an
adequate safety distance.
o Do not subject electronic units to temperatures exceeding 80 °C.

o Do not alter the data contained in the engine control
electronic unit.

Start-up
o Ready the engine following the procedure set out in
Chapter 15.
o When starting the engine the first time, have suitable
means available to cut off air intake in case of a runaway
condition.
o Start the engine after ensuring that it is complete with
every part specified by the manufacturer and required
by the installation, without attempting to start it with
caps and occlusions to the lubrication, cooling and fuel
feed lines.
o Check that the fluid lines are perfectly sealed, especially
lines for fuels and lubricants, which may cause fires and
consequent harm to persons and equipment.
o Make sure that the various pipelines are not in contact
with warm surfaces or moving parts.
o The installing yard is required to carry out tests to verify
the functional compatibility between the electrical-electronic equipment of the engine and the other electronic
equipment present on the boat.

Tests and tuning up
o Never disconnect the batteries when the engine is
running.
o Remove the electrical connections from the batteries
before any operation on the electrical system.

o To avoid any interference, the wiring harnesses of the
different on-board electronic devices must follow different paths from those of the engine electronic systems.

o Ensure that the battery terminals comply with the exact
polarity, are properly tightened and protected against
accidental short circuits and corrosion phenomena.

o Do not connect any extraneous user device to the
engine electrical equipment.

o Do not connect or disconnect electrical connections
when electrical power supply is present.

MAY 2006

INSTALLATION DIRECTIVE

o Do not cause sparks in the attempt to verify the presence of electrical voltage.
o Do not draw fuel through unfiltered lines.
o Do not clean the engine and its parts with corrosive or
abrasive detergent substances, to avoid compromising
the integrity of electrical connections.
o The engine fluids and air, water, and oil filters discarded
after use must be properly stored and delivered to
appropriate collection centers.

Long engine inactivity periods
Before long periods of inactivity, ready the engine following
the procedure set out in Chapter 21.

S30 ENT M23

INSTALLATION DIRECTIVE

S30 ENT M23

MAY 2006

2. ENGINE PARTS AND COMPONENTS
Figure 1

3
2
1
12
11

05_003_S

1. Engine coolant discharge cap - 2. Electric starter motor - 3. Tube bundle engine coolant/sea water heat exchanger - 4. Exhaust gas
and sea water discharge pipeline - 5. Engine coolant tank - 6. Coolant refill cap - 7. Lifting eyebolts - 8. Oil refill cap - 9. Sea water
pump actuation pulley - 10. Auxiliary belt automatic tensioner - 11. Alternator - 12. Location of sacrificial anode.

INSTALLATION DIRECTIVE

MAY 2006

S30 ENT M23

Figure 2

9
15
17
8
16
17

05_002_S

1. Engine coolant discharge cap location - 2. Combustion air filter - 3. Sacrificial anode - 4. Throttle potentiometer - 5. Combustion
air-sea water heat exchanger - 6. Oil dipstick - 7. Location of common rail high pressure injection pump - 8. Sea water pump - 9. Sea
water inlet - 10. Manual lubricating oil extraction pump - 11. Oil vapor separator - 12. Lubricating oil filters 13. Common rail distributor - 14. Waste-gate actuator - 15. Cooled turbocharger - 16. Sea water junction pipe from after-cooler to
engine coolant/sea water heat exchanger.

INSTALLATION DIRECTIVE

S30 ENT M23

MAY 2006

3. INSTALLATION OVERVIEW
Figure 3
1

10
3

9
06_005_S

1. Indicator and control panel - 2. Electrical panel with relay box and EDC electronic unit - 3. Exhaust gas and sea water discharge 4. Filtered sea water intake - 5. Decanter filter - 6. Fuel feed pipe to the high pressure pump - 7. Fuel electric pump - 8. Fuel prefilter - 9. Fuel filter - 10. Fuel priming pipe - 11. Fuel return pipe to the tank - 12. Accelerator Bowden cable - 13. Accelerator lever.

The figure shows the set of components of an installation,
including those supplied with the engine equipment, standard
or optional, and those supplied or produced by the yard.
It provides a comprehensive picture of the operations
required to install the engine.

Components arrangement and illustrations are not binding
but merely indicative, subject to the choices made by yard
engineers according to their skills, available spaces and the
prescriptions set out herein.

MAY 2006

INSTALLATION DIRECTIVE

S30 ENT M23

4. GENERAL INSTALLATION CRITERIA
Accessibility
The engine must be located in such a way as to allow filling
and draining engine liquids when doing servicing operations.

Anchoring
If anchoring is accomplished by interposing shock mounts,
they must be able to support the engine’s mass and the longitudinal thrust exerted by the propeller shaft in motion.
If rigid mounting is adopted, particular care must be given to
support alignment and co-planarity.
Information on dimensions and fastening values are provided
in the “Installation Diagram”.

Combustion and ventilation air
Compliance with prescriptions on the quantity of air
required for combustion and ventilation assures a regular
operation of the engine even in adverse conditions and it
enables to deliver its maximum design power (1).

Sea water line
It must be provided with an intake capable of preventing
the entry of foreign bodies into the suction pipes. Between
the intake and the pump, it is best to interpose a gate to be
closed in emergencies or for extended idle periods and a
filter to stop the smaller impurities; it is also recommended
to install a suitably dimensioned and easily replaced zinc
anode.
The engine sea water line was provided by the manufacturer
with protection anodes to be replaced periodically.
The rubber hoses positioned along the pipeline shall be sufficiently rigid not to create choked areas caused by crushing (1).

Engine pre-heating
If the engine usage profile requires immediate delivery of
power at the highest rpm’s, it is recommended to install an
auxiliary pre-heater on the closed cooling loop.

Exhaust gas discharge
The exhaust gas discharge conduit shall be compliant with
the guidelines contained in the IVECO MOTORS publication
“Guide to the installation of marine engines”; it also provides
indications to compute the dimensions of the exhaust pipelines, which is the Yard’s responsibility.

Electric - electronic equipment
Provide a suitable arrangement of the engine control electronic unit, of the relay box and of the possible optional
electronic units, referring to the dimensions and position of
the wire harnesses and their connectors.
Both units must be anchored in such a way as to dampen the
vibrations and stresses undergone by the hull while underway and/or induced by the engine’s operation.

(1) The EDC engine electronic control is programmed to
reduce maximum deliverable power if the operating
parameters measured by the sensors show that critical conditions have been reached, and if exceeded the
engine could be damaged.

S30 ENT M23

INSTALLATION DIRECTIVE

MAY 2006

5. TECHNICAL DATA FOR INSTALLATION
Combustion and ventilation air when underway
Static vacuum allowed downstream of the air filter

kPa
mm H2O

≤ 3,5
≤ 350

Combustion air flow rate

m3/h

≥ 710

Engine room ventilation air flow rate (excluding combustion air)

m3/h

≥ 3590

Static vacuum allowed in the engine room

kPa
mm H2O

≤ 0,1
≤ 10

Temperature allowed in the engine room

°C

≤ 45

Temperature increase in the engine room to ext. temperature

°C

≤ 15

Exhaust gas discharge
Allowed static back pressure

kPa
mm H2O

Exhaust gas temperature at maximum power (turbocharger inlet)

°C

≤ 10
≤ 1000
700

Flow rate at maximum power

kg/h

875

Outer diameter of exhaust mixed with sea water

mm
inches

100
4

Fuel supply
Transfer pump delivery at maximum rpm

l/h

≤ 190

Flow rate return to tank

l/h

≤ 185

Fuel temperature to allow maximum power

°C

≤ 70

Inner diameter, intake pipe

≥8

Inner diameter, return pipe

≥8

Thread on pre-filter junctions

Electric pump approved intake vacuum

kPa
mmH2O

Approved intake pressure at the low pressure mechanical pump
Allowed on tank return pipe back pressure

kPa
mmH2O
kPa
mm H2O

14 x 1,5
≤ 15
≤ 1500
20 to 120
2000 to 12000
≤ 40
≤ 4000

Open sea water cooling line
Intake pipeline diameter

mm
inches

32
1,26

Pump delivery at maximum rpm

l/h

9000

Sea water pump height above sea level

≤2

Allowed intake vacuum

kPa
mm H2O

Dry exhaust outer diameter

mm
inches

Not foreseen

Maximum longitudinal in continuous operation (static + dynamic)

degrees/360

+20

Maximum transverse in continuous operation (static + dynamic)

degrees/360

± 22º30'

Longitudinal for oil level check with standard dipstick

degrees/360

0 to +6

≤ 20
≤ 2000

Allowed engine inclination angles

INSTALLATION DIRECTIVE

MAY 2006

S30 ENT M23

Power takeoffs (optional)
1-race front pulley for “V” belts

Reference diameter

Race dimension

Power available at 1000 rpm (*)

≤1

Power available at 2000 rpm (*)

≤2

Radial force resulting from belt tension (*)

≤ 400

(*) These values are valid for driving to the side opposite to that of the sea water pump

Dimensions

¬
¬

-!8¬¬
-).¬¬

Figure 4

¬
Measurements in: millimeters (inches).

06_001_S

S30 ENT M23

INSTALLATION DIRECTIVE

MAY 2006

6. IDENTIFICATION DATA
Figure 5

06_004_S

Figure 6

05_003_S

The engine identification data are stenciled on a tag positioned over the engine coolant tank

INSTALLATION DIRECTIVE

MAY 2006

S30 ENT M23

7. COMPONENTS SUPPLIED WITH THE ENGINE
Figure 7
5

*&#

06_019_S

4
1. Connectors to be assembled - 2. Conductor terminals - 3. Gaskets to be fitted on individual wires - 4. PF connector rear cover 5. Fuel electric pump - 6. Fuel pre-filter - 7. Fuel filter - 8. Components to replace fittings mounted on the fuel filter.

The engine is supplied with a box containing the parts
showed in the pictures, as well as spring supports to allow
keelson anchoring.

Electric connectors
As shown in pictures 1, 2, 3, 4, they must be used to set up
the cabling connecting them to the components located on
the fuel filter.
Individual electric connectors are each one sealed in seethrough bags, together with small parts required to complete them. In order to avoid connection errors, connectors
are different from one another; each one of them must be
exclusively mounted by using the small parts contained in the
relevant plastic bag
Connection function
o A. Fuel temperature sensor for EDC

o M. Sensor designed to detect the presence of water in
the fuel pre-filter
o Z. Fuel filter clog sensor
o PF. Heating element on the fuel filter
o JFC. Connection to the JFC connector on the engine
harness
Chapter 9 shows the instructions to be followed to perform
connections.

Mechanical components
As shown in picture 8, they must be used to replace the fittings mounted on the fuel filter support.
Chapter 8 shows the instructions to be followed in order to
carry out assembly operations.

Hydraulic components

Identified in the picture by numbers 5, 6, 7, hydraulic components must be used to set up the fuel feeding system.
Chapter 8 shows the instructions to be followed in order to
perform connections.

S30 ENT M23

INSTALLATION DIRECTIVE

MAY 2006

8. FUEL LINE
Figure 8

3
2

1
4
5

High pressure

Low pressure

06_006_S

1. Low pressure mechanical feeding pump and high pressure common rail injection pump - 2. Electro-injector - 3. Common rail 4. Pre-filter - 5. Fuel electric pump - 6. Filter.

For the installation, the following connections are required:
-
-
-
-
-

from the tank to the pre-filter
from the pre-filter to the pump inlet
from the electric pump to the filter inlet
from the filter outlet to the low pressure mechanical
feeding pump
from the fuel discharge outlet to the tank.

Components
Pre-filter, electric pump and filter, supplied with the engine,
must be fitted in proximity of the tank, in a relatively low
point of the system. The filter must be prepared as indicated
here below and fastened in such a way to allow easy replacement of the filtering cartridge.
Avoid the use of additional mesh or paper filters along the
feed lines between pre-filter and engine. To avoid introducing
impurities in the feeding lines inside the engine, do not place
filter cartridges pre-filled with fuel in the system.

Materials’ Characteristics
The fuel tank and the suction and return assembly must
withstand the continuous abrasion caused by a flow of fuel
oil of 200 l/h at a temperature of 120 °C without noticeable

deformation or wear or release of material. Use of metal
tanks, preferably made of iron alloys, is allowed, provided
they are connected to the negative terminal of the battery
to prevent the accumulation of electrostatic charges.
Tanks must be provided with vents to avoid exceeding an
internal pressure of ± 5kPa (± 0.5 m of H2O column); their
shape and the suction assembly must be such as to assure a
suction at the maximum longitudinal and transverse inclination allowed for the boat, with a residual quantity of fuel oil
considered “reserve”.
The suction inlet should be positioned in such a way as to
avoid taking in sludge. The return flow must be in such a way
as to facilitate the mixing of the returning fuel with the fuel
in the tank. If the tank is lower than the filter, then the return
pipe must always be submerged. The pipes and union fittings
of the fuel line must withstand a fuel oil flow rate of 200 l/h
at a temperature of 120 °C and a pressure of 3 bar (300
kPa) without noticeable deformation, wear or release of
material. Metal tubes, preferably made of iron alloys, are recommended, taking care to connect each individual segment
to engine ground to avoid the accumulation of electrostatic
charges and inserting a vibration damper elastic joint on each
segment. The pipes used must be certified according to the
relevant Countries’ rules or to the standards issued by classification Bodies.

INSTALLATION DIRECTIVE

MAY 2006

S30 ENT M23

Fuel supply system scheme
Figure 9
4

3
2
1

M
12

06_007_S

1. Low pressure limiter valve - 2. Pressure regulating electric valve - 3. High pressure radial pump - 4. Pressure sensor - 5. Common
rail - 6. Electro-injector - 7. Fuel tank - 8. Pre-filter - 9. Fuel electric pump - 10. Filter - 11. Vent fitting - 12. Low pressure mechanical
feed pump.

Hydraulic connections
Figure 10

06_020_S

1. Rubber holder fitting for fuel inflow into the low pressure mechanical feeding pump 2. Rubber holder fitting to allow fuel outflow towards the tank.

S30 ENT M23

INSTALLATION DIRECTIVE

Preparation of the fuel filter support
Figure 11

06_010_S

1. Screw - 2. Seal washers - 3. Rubber holder fitting.

The filter support must be prepared by replacing fuel inlet
and outlet fittings with the supplied ones.
Following the removal of the fittings on the support, Rubber
holder fitting must be mounted on the screws by fitting seal
washers as shown in the picture. Tighten the screws.

MAY 2006

INSTALLATION DIRECTIVE

MAY 2006

S30 ENT M23

9. ELECTRICAL EQUIPMENT
Figure 12
1

6
7
8
13

06_012_S

1. Engine wiring - 2. +BATT/CC terminal - 3. Power line for electric starter motor and alternator - 4. Indicator and control panel - 5.
Extension harness - 6. Engine pre-heating glow plugs electronic control unit - 7. Fuse holder for the engine pre-heating glow plugs
electronic control unit - 8. ECU EDC connectors - 9. Relay box - 10. Diagnostic tool connector - 11. Harnessing to be made by
construction site personnel - 12. Fuel filter support - 13. Fuel electric pump

The electrical equipment of the engine comprises a series
of components provided separately from the engine to
enable an easy and diversified installation, according to the
Yard’s design choices. The need to make accessible, at sea or
underway, the controls to the electrical components and to
the connector for diagnostics contained in the relay box may
be met through different installation arrangements.
Along with the coupling of all connectors provided in the
wire harnesses, completing the installation also requires the
connecting wire harness to the connector JFC (11) for the
fuel filter, to complete the power line and to connect the
accumulator to the engine wire harness.

NOTE
The two general power supply terminals identified as
+BATT and −BATT must be connected to the accumulator, while the terminal identified as +BATT/CC must be
connected to the +30 pole of the starter motor.

INSTALLATION DIRECTIVE

S30 ENT M23

MAY 2006

Synoptic
Figure 13
Throttle position
sensor

Indications and
alarms sensors

Electro-injectors

EDC components

Alternator

Electric starter
motor

3¬%.4¬-

BOX
RELÉ

*&#
!

BATTERIA

%$#
"

06_030_S

1. Connector for instrument panel connection wire harness - 2. Engine wire harness - 3. Connector for fuel filter wiring - 4. Power line.

Wires supplied with the engine include connectors for all
concerned components, connector JB to ensure connection
to the warning and control panel, and the JFC connector

to allow the connection to the components located on the
fuel filter.

Engine wire harness

(

*&#

0%
:(

"/8
¬
2%,³

¬
%$#¬"¬

&¬

¬
%$#¬!¬
INSTALLATION DIRECTIVE

Figure 14

A. Fuel temperature sensor for EDC - B. Drive shaft sensor for EDC - C. Camshaft sensor - F. Engine coolant temperature sensor for EDC - ECF. Connector for the engine
stopping functions if stressed - ECM. Connector for the engine stopping function if stressed - H. Combustion air pressure/temperature sensor for EDC - K. Air filter clogging sensor
(for alarm) - M. Sensor for detecting the presence of water in the fuel pre-filter (for alarm) - O. Exhaust gas temperature sensor (for gauge) - T. Coolant temperature sensor (for
gauge) - V. Oil pressure sensor (for gauge) - E1. Cylinders 1 and 2 electro-injectors - E2.‑Cylinders 3 and 4 electro-injectors - E3. Cylinders 5 and 6 electro-injectors GG. Alternator - JB. Instrument panel connection wire harness - JF1,JF2. Relay box - MM.‑Electric starter motor - PA.‑Throttle position sensor - PF. Heating element on fuel filter
- PR. Rail pressure sensor - SI. Gear box oil temperature sensor - VE. Engine oil pressure/temperature sensor for EDC - VI. High gear box oil pressure sensor (25 bar) WI. Low gear box oil pressure sensor (7 bar) - ZH. Pressure control solenoid valve.

Fuel filter interface wire harness

¬)¬¬¬¬¬¬

05_001_S

n"!44

"!44

"!44##

MAY 2006
S30 ENT M23

Wire harness

INSTALLATION DIRECTIVE

S30 ENT M23

Power supply line

Supplementary services battery
To assure that the engine can be started with a sufficient
quantity of energy, it is advisable to provide for the installation of a supplementary battery, dedicated to supplying
power to the on-board electrical services. The power line to
recharge it may be constructed according to the indications
provided in Chapter 22.

Figure 15
4
Equipment power supply

If one engine is installed
The battery used for services may be recharged interposing
on the power supply line a relay actuated by the recharge
signal of the alternator’s electronic regulator (D+).

+BATT/CC

2
30

MAY 2006

D+

06_043_S

1.Alternator - 2. Electric starter motor - 3. Battery 4. Engine wire harness.

The connection of terminal +B of the alternator to the
positive terminal +30 of the electric starter motor consists
of a 25 mm2 diameter conductor or bigger. The connection
of the positive +30 terminal of the electric starter motor to
the positive pole of the battery, achieved with a conductor
having a cross section of at least 70 mm2, allows to obtain,
as shown in the figure, the simultaneous connection of the
alternator to the battery.The simultaneous connection of the
alternator to the accumulator; on the same terminal, one will
have to connect the cable terminal to an eyelet marked as
+BATT/CC of the engine harness. The connection between
the engine ground and the negative pole of the battery must
be achieved according to the guidelines provided in the
Engine electrical ground paragraph.
CAUTION
If magneto-thermal protecting breakers are inserted, they
must not be used to stop the engine and in any case they
must be activated only a few seconds after shut-down.

If two engines are installed
The presence of two generators allows to keep the recharging functions separated: the generator (G1) recharges the
battery (AC1) dedicated to starting both engines and powering both electrical/electronic control circuits, whilst the
generator (G2) recharges the battery (AC2) used to power
the services. In two-engine applications, it is essential to connect the engine grounds to a common potential; the solution
proposed in Chapter 22 fully complies with this need, assuring
the full functionality and independence of the two circuits.

INSTALLATION DIRECTIVE

MAY 2006

Engine electrical ground
The connection of the engine electrical ground is achieved
by connecting with a cable of at least 70 mm2 cross section
to the negative pole of the battery to the tightening point of
the electric starter motor as shown in the following figure.

S30 ENT M23

Battery recharging
Figure 17

Figure 16
1

04_078_N

B+. Connected to the +30 of the electric starter motor - D+.
Excitation - N. Not connected.

06_020_N

1. Point of connection of the engine electrical ground.

To anchor the grounding terminal to the engine, proceed as
follows:
o Completely remove the conducting paint from both
parts constituting the connection, using mechanical
means or suitable chemical product; if the anchoring
operation is to take place on superficially treated parts,
completely remove the anaphoretic paint with mechanical means, obtaining a smooth support surface.
o Apply a uniform layer of BH44D paint (IVECO standard
18-1705) with a brush or spray gun.
o Join the parts constituting the grounding note within 5
minutes from the time the paint was applied.

This is accomplished through the power supply line of the
electric starter motor and connection to the +B of the
alternator. The electronic regulator of the alternator that
equips the engine allows an effective control over the battery recharging operation.
If, due to installation requirements, the batteries need to be
positioned at a distance from the engine, we recommend
increasing the cross section of the power line conductors
and verifying recharging effectiveness by measuring voltage
across the battery poles.

INSTALLATION DIRECTIVE

S30 ENT M23

MAY 2006

Wiring to the JFC connector
Figure 18
Minimum cable
cross section in mm2

Component
terminal

2.5

0.5

Minimum cable
cross section in mm2

Component
terminal

1.5

0.5

JFC

Connector code

By stabilizing the fuel filter assembly position, it will be possible to set up the wiring to connect the components located
on the fuel filter.
The diagram in the picture shows the connections to be
performed on connectors.
Connection function
o A. Fuel temperature sensor for EDC

o M. Sensor designed to detect the presence of water in
the fuel pre-filter
o Z. Fuel filter clog sensor
o PF. Heating element on the fuel filter
o JFC. Connection to the JFC connector on the engine
harness
NOTe
Comply with conductors’ minimum diameters indicated in
the diagram in order to avoid voltage drops which would
endanger the system operation.

Connector code

06_041_S

INSTALLATION DIRECTIVE

MAY 2006

S30 ENT M23

Figure 19

!
&

1
"

*&#

!
"

06_031_S

1. Fuel filter

The picture shows 5 connectors and the position that conductors must have in order to ensure correct connections.
Wiring must be performed to ensure minimum diameters of
conductors, as indicated in the electric diagram.
CAUTION
Wrong connections of conductors can generate malfunctions and damage electric components.
The wiring must be made with the JFC connector, not
connected to the engine harness. Coupling of the two JFC
connectors will have to be done with the power supply
switched off.

INSTALLATION DIRECTIVE

S30 ENT M23

Connections of the central electronic unit
(ECU) EDC 16C8

MAY 2006

Relay box
Figure 23

Figure 20
B
A

+ +

+ +
06_029_S

A. 60 pole connector - B. 94 pole connector.

The connection of the central electronic unit, ECU, to the
components of the EDC system is achieved by means of
three connectors to subdivide the wiring harnesses, thereby
favoring a quicker identification of the lines during testing
operations.
o B for engine mounted components
o A for boat side connections
The different connectors are polarized and provided with
levers to favor the connection and disconnection operations
and assure proper coupling.
The sequence of operations allowing the removal of connectors from their housing is as follows:
Figure 21
A

06_060_S

A) Extract the extraction lever retaining device;

&¬
&¬
&¬
&¬
&¬
06_024_S

It represents the main interconnection point and it performs
multiple interfacing functions between the various system
components.
It is the seat of remote control switches and fuses; components are mounted on a base and thus it is possible to extract
them to set up verification or replacement operations.
Remote control switches (relays) depend upon the following
components:

key switch electric discharge

emergency engine shut-down provision

EDC main (power supply

power supply to terminal 50 of the electric
starter motor

Electric fuel pump power supply

fuel filter heater element power supply

Figure 22
The components to which fuses depend upon are as follows:

C
B

06_061_S

B) Lift the extraction lever, make sure the anchoring slide is
extracted from its housing;
C) Lift the connector without causing any fluctuation which
would jeopardize the integrity of electric terminals.

electric fuel pump

heating element on fuel filter

power supply to the heater plug control unit (15 A)

EDC (10 A)

EDC (25 A)

MAY 2006

INSTALLATION DIRECTIVE

S30 ENT M23

Water presence in the filter sensor

Heater plug fuse

Figure 27

Figure 24

2
06_050_S

A maxi 60 A fuse is located in serial connection with the
electric network of heater plugs.

Diagnostic connector
Figure 25
06_048_S

06_040_S

A multipolar plug is located in proximity of the relay box,
to which an IVECO MOTORS diagnostic tool can be connected to.
The diagnostic tool allows the processing of data recorded
during the engine operation phase and memorized in the
ECU; data interpretation will provide useful indications to
better schedule maintenance interventions.

Throttle lever position sensor

1. filter - 2. Conductor to be connected
with the negative battery terminal.
CAUTION
In order to enable the proper working of the sensor to
detect water in the fuel, it is necessary that the filter
support is connected electrically to the negative battery
terminal.
In the engine models which use parts with insulated poles it
is necessary to electrically insulate the filter support from the
boat mass and then connect the support with the negative
battery terminal.

Figure 26

80856

After testing the working condition of the linkage, adjust the
run of the servo components (see Chapter 18).
o With the throttle at idle setting, the potentiometer rod
has to be in the resting position.
o With the throttle at the stop, the potentiometer rod has
to be in the position of maximum run out.

INSTALLATION DIRECTIVE

S30 ENT M23

MAY 2006

10. MAIN ANALOG INSTRUMENT PANEL
3

Figure 28

bar

12
11

8
7

13
14
06_002_S

1. Coolant temperature gauge (TA) - 2. Revolution counter and hour counter (CG) - 3.Voltmeter (V) - 4. Buzzer (SA) - 5. Indication
and alarm module (MS) - 6. Engine oil pressure gauge (MO) - 7. Connector for secondary instrument panel (JE)- 8. On board panel
instrument light switch (L) - 9. Engine start/stop key switch (CA) -10. Engine stop push-button (usable only with electric harness
versions with excitation engine stop) - 11. Sound alarm inhibition push-button (P1) -12. SIFC Alarm abilitation connector 13. Connector for main panel wiring (JC) - 14. Cap with electrical continuity connection.

Installation of the IVECO MOTORS onboard panel with
analog indicators entails connecting the panel’s JC connector to the JB connector on engine wire harness, interposing
the appropriate extension wire harness available in 3, 5 and
7 meter-long versions. The JC-JB wire harness comprises 47
lines, each connected to the terminal identified on both connectors by the same number.

To the main panel is connected the JE connector, provided
for connection to the secondary panel; in installations with
no secondary panel, do not remove the cap of the JE connector to avoid compromising the electrical continuity of the
systems’ power supply circuit.
To allow the work of the fuel filter clogging alarm (SIFC), in
the indication alarm module, it has to disconnect the connector (12) fitted close to JC.

INSTALLATION DIRECTIVE

MAY 2006

S30 ENT M23

Synoptic of the connections of the analog panels
Figure 29

Secondary
instrument
panel

2
Main
instrument
panel

JH JH

JE JE

Engine
equipment

Relay
box
JF1
JB

JF2

EDC

Battery
A2

04_254_N

1. JB-JC extension wire harness - 2. JE-JH extension wire harness.

Figure 30

16
43

28
42

7 1
6
5

26
41

11 4
38

31
18

24
39

39
40

9
3 2

47
33

22
23

15 14 13

21
22

10
3

9
2

31
30
45

33
32

12 13
40

15
14

16
28

43
42

04_250_N

CONNECTORS OF THE JB - JC EXTENSION WIRE HARNESS, SEEN FROM THE COUPLING SIDE
To identify the functions served by the individual lines, refer to the electrical diagrams in Chapter 22.

S30 ENT M23

INSTALLATION DIRECTIVE

Installation

Indications and alarms module

In order to drill holes on the area where the panel is to be
mounted, refer to the dimensions indicated in Chapter 12.

Operation of the panel
After completing the electrical connections and engine
preparation, perform the tests required for the first start, as
described in Chapter 17.
Verify the proper operation of the panel, proceeding as
follows:
o Make sure that the “ENGINE ROOM / BRIDGE” switch
of the Relay Box is in the “BRIDGE” position, then turn
the key switch to the first position and verify that the
instruments are powered and the indications and alarms
module runs the alarm test for about 5 seconds according to the procedures set out below.
o Once the test is complete, only the indications prescribed for the engine not running must remain lighted:
e.g. “alternator charge” and “low oil pressure”; the analog
instruments must provide values consistent with the
relevant physical parameters.

Testing the engine start function
Turn the key switch to the second position and keep it in it
until the engine has started, then release the switch, which
will stably return to the first position; after releasing the key,
the switch may be brought back to the starting position only
after the switch is returned to the resting or zero position.

Checking indications
After starting the engine, verify whether the operating
modes of the indications and alarms module are similar to
those set out below.
Using appropriate measuring instruments, verify the consistency of the indications provided by the analog instruments.
Verify the indication of the panel revolution counter, comparing it with the one measured by a reference instrument; if the
indication is different, proceed as described below.

Testing the engine stop function
The engine is stopped and the panel is disabled by returning
the key switch to the resting or zero position.
If the engine stopping function if stressed is present, press the
stopping button situated on the board.

MAY 2006

Figure 31
7
6

4
3

10
11
12

2
1

13
04_234_N

1. Runaway engine (SSV) - 2. Presence of water in fuel prefilter (SAC) - *3. Low coolant level (SBLA) - 4. Alternator fault
(SS) - *5. Clogged oil filter (SIFO) - *6. Clogged oil vapor filter
(SIFB) - *7. Pre-lubrication (SP) - 8. Clogged air filter (SIFA)
- 9. Clogged fuel filter (SIFC) - 10. High coolant temperature
(SATA) - 11. Low oil pressure (SBPO) - 12. Pre-post heating
(SCP) - 13. EDC malfunction (EDC).

* Unavailable functions on S30 ENT M23 engines.
The indications and alarms module comprises the indicator
lights and the electronic alarm interface, timing and storage circuit. It is programmed in such a way that when it is
powered, all indicator lights are lighted, with the exception
of those for “pre-lubrication”, “pre-post heating” and “EDC”
failure and a sound signal is emitted by the buzzer.
The sound alarm may be silenced before the end of the test,
acting on the appropriate control.
During the starting phase and for the subsequent 15 seconds, needed to stabilize the low oil pressure signal, all the
module’s functions are inhibited; once this time interval has
elapsed, every alarm state detected by the sensors will cause
the associated indicator to be lighted and the buzzer to be
powered; the exceptions are the “pre-lubrication” and “prepost heating” indicators, given only visually.
When a new alarm state is detected, the indicator light will
flash to highlight the occurrence with respect to any others
which may be ongoing at the time. When the sound alarm is
shut off, the light indicator will remain lighted and the alarm
will be stored until the engine is stopped.
The standard set-up of the S30 ENT M23 provides for use
of the indicators SAC, SS, SIFA, SATA, SBPO, EDC.

INSTALLATION DIRECTIVE

MAY 2006

Revolution-counter calibration

S30 ENT M23

Revolution-counter calibration

Figure 32A

Figure 32B

06_113_V

04_255_N

1. Adjustment screw 2. Panel lighting lamp.

1. Calibration increasing button 2.Calibration decreasing button.

Verify the indication of the panel revolution counter by comparing it with the one measured with a reference instrument;
if it differs, operate the adjustment screw (1), located in the
rear part of the instrument, until consistency is achieved;
repeat the operation for different engine rpms.

Verify the indication of the panel revolution counter by comparing it with the one measured with a reference instrument;
if it differs, press the button 1 and 2 situated on the rear
of the tachometer, until consistency is achieved; repeat the
operation for different engine rpms.

Maintenance

Should it become necessary to replace a panel light, remove
the lamp holder from the rear part of the instrument (see
Figure 32A).

The board is illuminated by not-replaceable internal LEDs.

INSTALLATION DIRECTIVE

S30 ENT M23

MAY 2006

11. SECONDARY ANALOG INSTRUMENT PANEL
Figure 33
4

electronic
RPMx100

04_240_N

1.Connector for secondary panel wire harness (JH) - 2. Engine start push-button (CS) - 3. Revolution counter (CG) 4. Buzzer (SA) - 5. Indications and alarms module (MS) - 6. Engine stop push-button (AS) 7. Sound alarm inhibition push-button (P1).

The connection is achieved by removing the cap on the JE
connector of the main panel, and connecting the JE connector to the JH connector on the secondary panel, interposing
the extension wire harness, available in 3, 5 and 7 meter-long
versions (see Figure 29). The JE-JH wire harness comprises
12 lines, each connected to the terminal identified on both
connectors by the same number (see Figure 34).
Figure 34
1

Operation of the secondary panel
After completing the electrical connection to the main panel
and engine preparation, and performing the tests required
for the first start (as described in Chapter 17), verify the
proper operation of the panel, proceeding as follows:
o Make sure that the “ENGINE ROOM / BRIDGE” switch
of the Relay Box is in the “BRIDGE” position, then turn
the key switch to the first position, thus enabling the
operation of both panels.
o Carry out the same tests for the secondary panel as
were carried out for the main panel.
o Disable the secondary panel by bringing the key switch
on the main panel to the resting or zero position.

Testing the engine start and stop function.
04_251_N

CONNECTORS OF THE JE-JH EXTENSION WIRE
HARNESS, SEEN FROM THE COUPLING SIDE

With the panel enabled, press the green push-button until
the engine starts, then release it; wait for engine rpm to stabilize before stopping it by pressing the red push-button.
The starting and stopping operations can be performed several times and consecutively from the secondary panel

Installation

Checking indications

In order to drill holes on the area where the panel is to be
mounted, refer to the dimensions indicated in Chapter 12.

Proceed in the same way as for the main panel.

INSTALLATION DIRECTIVE

MAY 2006

S30 ENT M23

12. DRILLING PLANS FOR ANALOG PANELS

4
Ø

Figure 35

Ø4

225
285

Figure 36

=
180
240

Measurements in: millimeters.

140

Secondary Panel

200

140

Main panel

INSTALLATION DIRECTIVE

S30 ENT M23

MAY 2006

13. CUSTOMIZED INSTRUMENT PANEL
Using only the components of the panel that are not wired
to allow for panel customization, they will have to be wired
using the 10 meter long wire harness, set up at one end for
coupling to the JB connector and at the opposite end with
conductors with free terminals with identifying numbering
on each wire. The conductors will have to be connected to
the individual components as indicated in the electrical and
wiring diagrams in Chapter 22.

Figure 38

4
8

10 11 12

13 14 15 16

CAUTION

17 18 19 20

To assure the functionality of the safeties pertaining to the
engine start/stop commands from the instrument panel or
engine room, it is mandatory to wire the key switch strictly
as shown in the electrical diagrams in Chapter 22.

21 22 23 24

The wiring details of the indications and alarms module
alone are provided below; indications for IVECO MOTORS
indicator instruments, are shown in the related wiring diagrams in Chapter 22.

JD Connector for indications and alarms module
Figure 37

04_241_N

VIEW FROM THE TERMINAL SIDE
OF THE COUPLING SIDE WIRING

Connector TRIDENT - ITT Cannon

part # TST 24PA00

terminal

female

part # 192990-0050

lid

rear

part # TST24AH00

JD connects the indications and alarms module to the electrical system of the engine (sensors, power supply, etc.).
The terminal part of the wire harness, supplied with the
module, must be completed using female terminals, as
described in the electrical diagram of Chapter 24.
For standard-equipped engines, to have the essential indications available, the following ways must be wired: 1, 2, 3, 7, 8,
9, 10, 13, 14, 15, 17, 18, 19 with the female terminals supplied
as standard equipment.

12 11 10 9
16 15 14 13
20 19 18 17
24 23 22 21

05_034_C

VIEW FROM THE INTEGRATED SIDE
IN THE REAR PART OF THE MODULE

MAY 2006

INSTALLATION DIRECTIVE

S30 ENT M23

Functions of the JD terminals
PIN Description Electric level
OFF Indication ON Indication
1

Module power supply

Not connected

EDC Fault indication

Not connected

Pre-heating indication

Positive (+B)
High (+B)

Low (ground)

High (+B)

Low (ground)

Pre-lubrication indication

Open circuit

High (+B)

Engine start

Power supply positive (+B) while starting

Sound alarm inhibition

Negative (ground) during the request

Module power supply

Negative (ground)

10 Buzzer power supply

Negative (ground) during the emission of sound

11 Clogged oil filter indication

Open circuit

Low (ground)

12 Clogged oil vapor filter indication

Open circuit

Low (ground)

13 Clogged air filter indication

Open circuit

Low (ground)

14 Clogged fuel filter indication

Low (ground)

Open circuit

15 Alternator fault indication

High (+B)

Low (1 to 3 V)

16 Low engine coolant level indication

Open circuit

Low (ground)

17 High coolant temperature indication

Open circuit

Low (ground)

18 Low engine oil pressure indication

Open circuit

Low (ground)

19 Presence of water in fuel indication

Open circuit

Low (ground)

20 Overloaded or runaway engine indication

Open circuit

High (+B)

21 Not connected

22 Not connected

23 Reception of data from main panel

NMEA communication protocol (0 to 5 V)

24 Transmission of data to secondary panel

NMEA communication protocol (0 to 5 V)

CAUTION
To assure the utmost reliability and safety while underway, all installations must be provided with the following alarm indications:
(EDC) EDC failure
(SATA) high coolant temperature
(SBPO) low oil pressure
It is also recommended that the following indications be present:
(SAC) presence of water in the fuel pre-filter
(SIFA) clogged air filter
(SIFC) fuel filter indication
(SS) alternator fault

INSTALLATION DIRECTIVE

S30 ENT M23

MAY 2006

14. SENSORS FOR DETECTION AND PANEL SIGNALING
Coolant temperature sensor

Oil pressure sensor

Figure 39

Figure 41

04_236_N

Resistor with negative temperature coefficient, providing the
signal for analog temperature indication.
Operating voltage:

from 6V to 24 V

Calibration range

from 0 °C to 120 °C

Resistance value at 90 °C

51,2 ± 4,3 Ω

Electrical poles

isolated

High coolant temperature sensor
Figure 40

04_027_C

Switching coolant temperature sensor, providing the signal
for the related indicator.
Operating voltage:

from 6 to 24 V

Condition at ambient temperature

normally open

Closing temperature:

100 ± 3 °C

Electrical poles

isolated

04_237_N

Rheostat component providing the signal for the analog
indication of pressure.
Operating voltage

from 6V to 24 V

Calibration range

from 0 bar to 10 bar

Resistance value at 0 bar

10 Ω +3/-5 Ω

Resistance value at 2 bar

52 ± 4 Ω

Resistance value at 4 bar

88 ± 4 Ω

Resistance value at 6 bar

124 ± 5 Ω

Maximum value of resistance

184 Ω

Operating temperature

from - 25°C to 100°C

Electrical poles

isolated

INSTALLATION DIRECTIVE

MAY 2006

Low oil pressure sensor

S30 ENT M23

Fuel filter clogging sensor

Figure 42

Figure 44

04_030_C

04_028_C

Pressure switch, providing the signal for the related indicator.

Operating voltage:

from 6 to 24 V

Operating voltage:

from 6 to 24 V

Condition at ambient pressure

normally closed

Condition at ambient pressure

normally closed

Calibration range

0.5 - 0.8 bar

Opening pressure:

1.5 ± 0.1 bar

Closing pressure:

0.5 bar

Maximum current

0,1 A (not inductive)

Opening pressure:

0.8 bar

Electrical poles

isolated

Maximum current

15 A (not inductive)

Electrical poles

isolated

Exhaust gas temperature sensor
Figure 45

Air filter clogging sensor
Figure 43

04_260_N

NiCr-Ni thermocouple sensor with insulated poles, providing the signal for the analog indication of exhaust gas
temperature.
Temperature

Voltage

°C

Vacuum switch, providing the signal for the clogged air filter
alarm indicator.

100

4.10

200

8.13

Operating voltage

from 6V to 24 V

300

12.21

Condition at ambient pressure

normally open

400

16.40

Closing vacuum

≥ 52 mbar

500

20.65

Operating temperature

from -20 °C to +80 °C

600

24.91

Maximum current

0,1 A (not inductive)

700

29.14

Electrical poles

isolated

800

33.30

900

37.36

04_238_N

S30 ENT M23

INSTALLATION DIRECTIVE

15. PREPARING THE ENGINE
FOR FIRST START-UP
1. Drain the residual 30/M protective oil from the sump.
2. Pour into the lubricating loop only lubricating oil of the
type and in the quantities set out in the Refilling Table.
3. Drain the CFB protective liquid from the fuel loop,
completing the operations as indicated under item 3. of
Chapter 21.
4. Remove the caps and/or seals from the engine intake,
exhaust, aeration and venting ports, restoring normal
conditions of use. Connect the inlet of the turbocharger
to the air filter.

MAY 2006

16. TESTS BEFORE
THE FIRST START-UP
Although they are extremely important, “common sense”
checks such as the exposure of sensitive parts (plastics, wire
harness, electronic units, etc...) to heat, and those that for
years have characterized the quality of the work performed
in the yard, are not mentioned herein.
Tests of the proper operation of the engine and the components of the electronic control system may be performed
rapidly and with the utmost reliability using specific diagnostic
tools, available from IVECO MOTORS Technical Assistance
Centers.

Fuel tank suction

5. Connect the fuel loops to the boat tank, completing
the operations set out in item 4. of Chapter 21. During
filling operations, connect the pipe returning fuel to the
tank to a collecting container, to prevent residues of CFB
protective liquid from ending up into the boat tank.

Verify the fuel suction at the maximum allowed longitudinal
and transverse inclination, with the residual quantity of fuel
considered “RESERVE”, such as to cause the reserve indicator light to be permanently lighted.

6. Verify and refill engine coolant as prescribed.

Throttle lever position sensor

7. Remove from the engine the labels with the inscription
“ENGINE WITHOUT OIL”.

In the positions of minimum and maximum travel, verify the
correlation between the position of the throttle control valve
on the bridge and the position of the sensor rod, checking:

Instrument panel
Verify the efficiency of all light indicators, as described in the
related Chapters.

INSTALLATION DIRECTIVE

MAY 2006

17. FIRST ENGINE START
Before starting the engine, please make sure the sea water
gate valve is open, check the levels of the lubricating oil and
of the engine coolant, and complete venting the air from the
fuel feed loop:
o Turn the key on “ON”; so that the ECU EDC feeds the
fuel electric pump for a few seconds, thus pressurizing
the low pressure feeding circuit.
o Loosen the vent fitting on the pre-filter.
o Newly turn the key on “ON” to feed the electric pump
until air-free fuel flows out of it.
o Tighten the vent fitting.
Make sure that the fuel that flows out of the fitting is not
dispersed in the environment.
CAUTION
Never attempt to vent the high pressure system, as this is
useless and extremely dangerous.

NOTe
A few moments after engine start, make sure sea water is
correctly expelled out of the system.
Once the first start-up phase is complete, verify that:
o There are no liquid leaks from the coolant loop pipeline
junction hoses.
o There are no exhaust gas leaks into the hull.
o Complete the instrument panel operation tests as
described in the related Chapters.
o Verify that the power supply voltage across the battery,
after about 15 minutes with the engine running, is no
less than about 13 V.
o Stop the engine and delete any “errors” which may have
been stored in the injection system ECU during the
stabilization phases. For the deletion procedure, refer to
Chapter 20.

S30 ENT M23

INSTALLATION DIRECTIVE

S30 ENT M23

MAY 2006

18. EDC ANOMALIES INDICATION
Anomalies indicator light
The ECU continuously monitors, with complex self-testing
routines, its own operating conditions as well as those of the
components connected to it and of the engine.
When anomalies are detected, the alarm indicator light on
the indicator and control panel is lighted in manners that
provide a first indication on the severity of the problem.
Light off:

no anomaly detected or slight anomaly
that does not compromise operating
safety

Light on:

significant anomaly, allowing to proceed to
a service center

Blinking light:

severe anomaly requiring immediate
repairs. If possible, shut the engine down.

Recovery
The recognition of significant or severe anomalies causes
the adoption of strategies that allow to use the engine with
complete safety, guaranteed by limiting performance within
pre-set thresholds according to the severity of the case.
These strategies cause the reduction of the maximum values
of torque and power delivered by the engine.
In the case of intermittent anomalies, i.e. recognized by the
ECU and subsequently no longer present, performance
reduction will continue until the engine is shut down.
Normal operation will be restored only the next time the
engine is started, while the anomaly data will be “saved” in
the failure memory.
NOTe
Identification of severe anomalies of the accelerator position sensor, causes the ECU to increase the engine rpm
from about 800 rpm to about 1050 rpm, in order to
achieve a minimum engine thrust and allow manoeuvers.

Error deletion procedure
Figure 46
06_048_S

It will be possible through the IVECO PT01 device connected to the dedicated J1 diagnostic connector.
caution
The mistake deleting procedure is intended to eliminate
the information relating to the mistakes from the ECU
memory, which happened during previous working periods.
The mistakes will not be deleted unless the relating cause
has been removed. Please remember that some anomalies
can be detected by the ECU self-diagnosis only during a
complete engine working cycle.

INSTALLATION DIRECTIVE

MAY 2006

S30 ENT M23

19. BLINK CODE TABLE (software version P315 V4.B)
Blinking
code

EDC indicator
light

Indicated fault

Max power
reduction

DTC code

117 - 119
78
8-9

Control area
11
13
14

(on)
(off)
blinking

not significant in marine applications
not significant in marine applications
throttle position sensor (line 1 o line 2)

17
18

off
off

not plausible accelerator position sensor signals
EDC anomalies warning light control

x
-

11
108

Engine Area 1
21

blinking

water temperature sensor

20 - 21

22
23
24

off
on
blinking

air temperature sensor
fuel temperature sensor
supercharge air pressure sensor

57
40
17 - 131

25
27
28

off
on
off

ambient pressure sensor (inside the unit)
electric fuel pump control relay exication circuit
coil relay fuel heater

35
36
37
38
39

off
off
off
off
off

x
-

10
94
42

Engine Area 2
battery voltage value
pre-heating warning light control circuit
engine heater plugs feeding relay
not plausible signal "15", power supply from key
engine heater plugs control unit

18
48
47
109
49

Injectors
51

blinking

cylinder 1 electro-injector

blinking

cylinder 2 electro-injector

blinking

cylinder 3 electro-injector

blinking

cylinder 4 electro-injector

blinking

electro-injector cylinder 1-2-3 power driver 1-4

blinking

electro-injector cylinder 4-5-6 power driver 1-4

blinking

cylinder electroinjector unit power stage (A o B chip internal
error)

x
x
x
x
x
x
x

66 - 67

x
x
x

68 - 69
70 - 71
72 - 73
60 - 61
62 - 63
64 - 65

Engine RPM sensor
61

blinking

driving shaft sensor signal

blinking

timing shaft sensor signal

blinking

not plausible driving and timing shifts sensors signals

36
38

(continue to next page)

INSTALLATION DIRECTIVE

S30 ENT M23

Blinking
code

EDC indicator light

Indicated fault

MAY 2006

Max power
reduction

Code DTC

87 - 88- 45
43 - 44 - 46
29 - 126 - 128
129 - 130
125 - 127

Interface
72
73

on
on

CAN lines error
CAN lines error

off

CAN lines error

off

CAN lines error

Fuel pressure
81
81
81
81
82
82

blinking
blinking
blinking
blinking
blinking
on

fuel pressure control deviation
rail pressure too low value
rail pressure too high value
fuel pressure control management
fuel pressure sensor signal
fuel pressure sensor signal deviation

STOP
STOP
STOP
STOP

98 - 99
100
101
102 - 103
95
96

blinking

pressure adjustment solenoid valve

STOP

82 - 83 - 84

Electronic unit
91

blinking

internal errors

92
93
94
96

blinking
(on)
on
blinking

EEPROM memory error
not relevant for marine applications
main relay
initialization error (inside control unit)

97
97

blinking
blinking

analogical-digital converter
control unit/sensors feeding

97
98
99

blinking
blinking
on

control unit/sensors feeding
internal errors
internal errors

x
-

x
STOP
-

50 - 52 - 54 - 55
56 - 86 - 121
51
58
80
104
3
105
106
90 - 91
110

MAY 2006

INSTALLATION DIRECTIVE

S30 ENT M23

20. UNDERWAY CHECKS
ECU Temperature

Pressure in the fuel supply line

Verify that the temperature of the surface of the electronic
engine control unit, after 30 minutes underway at full engine
power, is less than +70 °C.

To assure the regular operation of the engine and the reliability of the components of the fuel supply and injection
system, you need to verify that:

Engine compartment vacuum

o Diesel feeding pipe pressure to low pressure mechanical
pump should range between 0.2 and 1.2 bar (2000 to
12000 mm H2O);

Verify that value of ambient air pressure in the engine room
with the engine(s) at full load and maximum power output
complies with the value specified herein.

Combustion air temperature
Verify that the temperature in the engine room, after 30 minutes underway at full engine power, does not exceed 45 °C
and, in any case, does not exceed the value of external temperature by more than 15°C.

Exhaust back-pressure
Verify that the value of back-pressure present at the inlet of
the exhaust gas conduit, with the engine(s) at full load and
maximum power output, complies with the value specified
herein.

Exhaust temperature
Verify that the temperature of the exhaust gases under
maximum engine power output conditions is close to the
prescribed value. To determine the propeller power absorption curve, it will also be possible to obtain the fuel injection values from the ECU parameters by using the IVECO
MOTORS tool.

Fuel temperature
Verify that the temperature of the fuel in the low pressure
line, while underway at full power and with a stable quantity
of fuel in reserve, does not exceed 70 °C. A higher value
would entail a reduction in engine performance. If the tendency to reach the maximum allowed temperature is noted,
install a heat exchanger for the fuel.

o pressure in the fuel oil return line to the tank is less than
0.4 bar relative (4000 mm H2O).
Measures are carried out inserting a “T” junction near the
fuel inlet and outlet, taking care to avoid any air suction. Values are read at variable rpm, from idle to maximum, at 200
rpm intervals.
If there are any symptoms indicating the possible presence of
air in the fuel supply line, a check may be made by inserting
a clear tube, arranged as an inverted U, before the engine
inlet junction.

S30 ENT M23

INSTALLATION DIRECTIVE

21. PREPARING THE ENGINE FOR LONG IDLE PERIODS
To prevent oxidation to the internal parts of the engine and
to some components of the injection system, if idle periods
exceeding two months are expected, the engine needs to
be prepared with six-months periodicity, proceeding as
follows:
1. Drain the lubricating oil from the sump, after heating the
engine.
2. Pour 30/M protective oil (alternatively, oil conforming
with MIL 2160B Type 2 specifications) into the engine to
the “minimum” level marked on the dipstick.
Start the engine and let it run for about 5 minutes.
3. Drain the fuel from the injection line and from the filter,
taking care to avoid letting the fuel come in contact with
the auxiliaries belt.
4. Connect the fuel line to a tank containing CFB protective liquid (ISO 4113) and assist the inflow of the liquid
by pressurizing the line and turning the engine over for
about 2 minutes, after excluding the operation of the
injection system. The required operation may be carried
out by directly polarizing the terminal 50 of the electric
starter motor with positive voltage 12 V, using a conductor prepared for the occasion.
5. Nebulize 30/M protective oil at the rate of about 70 g
(30 g per liter of displacement) into the turbocharger
intake, while the engine is turning over as described
above.
6. Close with suitable stoppers or seal with adhesive tape
all engine intake, exhaust, aeration and venting ports.
7. Drain the residual 30/M protective oil from the sump; it
may be re-used for 2 more engine preparation operations.
8. Apply tags with the inscription “ENGINE WITHOUT
OIL” on the engine and onboard panel.
9. Drain the coolant, if it has not been mixed with antifreeze and corrosion inhibiting agents, affixing tags to
indicate that the operation has been carried out.
If external parts of the engine are to be protected, spray
protective liquid OVER 19 AR onto unpainted metal parts,
such as flywheel, pulleys and others; avoid spraying belts, connector cables and electrical equipment.

MAY 2006

INSTALLATION DIRECTIVE

MAY 2006

S30 ENT M23

22. WIRING DIAGRAMS
Wiring diagram key
General conditions for the preparation and interpretation of wiring diagrams
o Key switch open

o Engine not running
o Liquids at efficient levels and pressures
Figure 47
Connection
JC: connector
8: terminal

Component
terminal

Component
code

Fuse code

2 JB

2 JC
85

30
CA

4 JE

F6
30 86 D ST

4 JH
50

7 JC

10 JH

7 JB

10 JE

8 JC

J1 T U V C D B E

8 JB

87a
30
86

5 JB

JB
13

9 JB

9 JC

E JFC

1 M

K4
86

A B JFC

+ BAT

+
AC

BAT
–

85
K6
30

MM
50

85
K5

JB
10
JB
11

B+
2

A
PF
B

A
M PE

B
B

2 4 6 28 72

1 68 91

61 62 25 48

JFC C D
85150

Minimum cable
cross section in mm2

Component code
or connector code

Terminal
connections

Sk Connett_B S30

52 93

S30 ENT M23

INSTALLATION DIRECTIVE

MAY 2006

Electrical equipment component code
A

fuel temperature sensor for EDC

pressure control solenoid valve

drive shaft sensor

85150

ECU of the EDC system

camshaft sensor

engine coolant temperature sensor for EDC

combustion air pressure/temperature sensor for
EDC

coolant high temperature sensor

air filter clogging sensor (for alarm)

instrument panel light switch

sensor for detecting the presence of water in
the fuel pre-filter (for alarm)

exhaust gas temperature sensor

coolant temperature sensor (for gauge)

oil pressure sensor (for gauge)

engine oil low pressure sensor

fuel filter clogging sensor

sound alarm inhibition push-button

120 Ω resistor for CAN line balancing

alternator pre-excitation resistor

battery

engine shut-off push-button on main panel

engine shut-off push-button on secondary panel

key switch

engine pre-heating glow plugs electronic control
unit

engine start push-button on secondary panel

E1, E2, E3, E4
electro-injector
G1, G2, G3, G4
engine pre-heating glow plugs
GG

alternator

electric starter motor

IVECO MOTORS indications and alarms module

throttle position sensor

fuel electric pump

heating element on fuel filter

rail pressure sensor

main analog instrument panel

secondary analog instrument panel

buzzer

low gear box oil pressure sensor (7 bar)

(continues on next page)

INSTALLATION DIRECTIVE

MAY 2006

S30 ENT M23

Electrical equipment component code (follows)
Connectors

Remote control switches mounted on the relay box

60 pole EDC engine components

key switch electric discharge

94 pole EDC electro-injectors

emergency engine shut-down provision

external diagnostic tool (on the relay box panel)

EDC main (power supply

power supply to terminal 50 of the electric
starter motor

fuel electric pump power supply

fuel filter heater element power supply

on engine wire harness

set for connection to the main analog
instrument‑panel or to the interface wire
harness for converter module

on main analog instrument panel

set for connection to the engine wire harness

JD
JE

IVECO MOTORS indications and alarms module

on main analog instrument panel

set for connection to the secondary analog
instrument panel
on secondary analog instrument panel

set for connection to the main analog
instrument‑panel

vIndicator lights

Fuses mounted on the relay box

fuel electric pump

heating element on fuel filter

power supply to the heater plug control unit (15 A)

EDC (10 A)

EDC (25 A)

EDC

EDC malfunction

Maxi fuse

SAC

presence of water in fuel pre-filter

SATA

high coolant temperature

SBLA

low coolant level

SBPO

low oil pressure

SCP

pre-post heating

SIFA

clogged air filter

SIFB

clogged oil vapor filter

SIFC

clogged fuel filter

SIFO

clogged oil filter

pre-lubrication

alternator fault

SSV

runaway engine

Gauges

revolution-counter

gear box oil pressure gauge

engine oil pressure gauge

engine temperature

gear box oil temperature

exhaust gas temperature

voltmeter

heater plug power circuit

BAT
–

7 JB

7 JC

+ BAT

2 JC

2 JB

E JFC

JFC C D

M PE

A B JFC

1 M

5 JB

B+
2
GG

8 JB

8 JC

10 JE

10 JH

4 JH

4 JE

K2
9 JC

9 JB

2 4 6 28 72

85150

87a

85
K3

86
K5

86
30

1 68 91

F2
F1

JB
11

JB
10

61 62 25 48

J1 T U V C D B E

JB
13

52 93

30 86 D ST

46 8 9 31 30 45

1 5 4 6 3 2

G1 G2 G3 G4

71 92

18 12 17 JB

18 12 17 JC

EDC SCP

S30 ENT M23

46
INSTALLATION DIRECTIVE
MAY 2006

EDC connector B

Sk Connett_B S30

Sk Connett_A S30

BAT
–

BAT
+

43 28

U
PR

1 2 3

JFC

K5 85

K6 85

CC 86

JFC

2 1 3

12 27

85150

2 1 3

50 20 11

INSTALLATION DIRECTIVE

U R
t

1 3 4 2

23 13 40 53

MAY 2006
S30 ENT M23

EDC connector A

BAT
–

BAT
+

Sk Quadro principale S30

10 JE

10 JH

4 JH

B+
2

JFC
E

6 14 15 36 16 27 9 39 13

4 JE

F
3

JFC

C D

87a

JC 33

K
1

44 40 41 26 25 21 42 22 43 23 45 46 47

EDC

SI FA

SAC

SCP

SBPO

S ATA
3 17 18 4

SIFC

SIFO

SIFB

SBLA
5 16 1 2 11 14 6 2 0

SSV

85150

6 48 28 71 92 62 61 72 5 1

JFC

19 18 30 38 12 35 31 3 17 20 24 28 29 37 10 11

8 1 0 19 15 1 3 2

44 40 41 26 25 21 42 22 43 23 45 46 47

S30 ENT M23

50
25

48
INSTALLATION DIRECTIVE
MAY 2006

Main analog instrument panel

BAT
–

BAT
+

B+
2

6 14 15 36 16 27 9 39 13

* See main instrument panel
wiring diagram

JC 1

5
6
7

9 10 11 12

SI FA

SAC

3 2

SIFC

SIFO

SIFB

SBLA

JD 9

5 16 12 11 14 6 24

SSV

SBPO

S ATA

8 10 19 15 13 2

JH 12 11 10 9 8 7 6 5 4 3 2 1

SCP

3 17 18 4

EDC

8 10 19 15 13 2

5 16 12 11 14 6 23

B EDC

3 17 18 4

INSTALLATION DIRECTIVE

Sk Quadro secondario S30

50
25

MAY 2006
S30 ENT M23

Secondary analog instrument panel

Sk Quadri VDO S30

min
X100

100

120

START

bar
4

6
8
10
58 87
29
116
psi
0
145
2

Connections
to be carried out

OFF

12
VOLT

14
16

Identifying numbering
on each wire

15
19
23

16
20
24

35 29 30 17 12

JD Connector integrated in the rear part
of the indications and alarms module

INSTALLATION DIRECTIVE

10 meter long
wire harness

175 210
105
250
oF

S30 ENT M23

50
MAY 2006

Wiring of a specific personalised instrument board

INSTALLATION DIRECTIVE

MAY 2006

S30 ENT M23

Wiring of the double personalised instrument board (main and secondary board)

oC
80

min
X100

100

175 210
105
250
oF

2
120

0
0

bar
4

14
16

VOLT

MAIN PANEL

6
8
10
58 87
116
psi
145

OFF ON
START

35 29 30 17 12

bar

oC
80

SECONDARY PANEL

min
X100

100

175 210
105
250
oF

4
6
8
10
58 87
29
116
psi
0
145
2

120

VOLT

Sk Quadri VDO 1°+2° S30

Two-engines
installation

n "!4

"
''

"!4

"!4 n

"!4

n "!4

Key:
- AC1: Main Battery
- AC2: Battery for auxiliary services
- IE1: Engine 1 electrical system
- IE2: Engine 2 electrical system
- RL: Relay 50A max.
- * : Electrical power supply for services

Single engine
installation

"!4

S30 ENT M23

52
INSTALLATION DIRECTIVE
MAY 2006

Supplementary services battery recharge

Sk Accum_Servizi S30

IVECO S.p.A.
PowerTrain
Viale Dell’Industria, 15/17
20010 Pregnana Milanese - MI - (Italy)
Tel. +39 02 93.51.01 - Fax +39 02 93.59.00.29
www.ivecomotors.com

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Iveco S30 Ent M23 Users Manual

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