Iveco N45 MNA M10 Installation Directive Manual page 20

N45 MNA M10
20
N67 MNA M15
Power supply line
Figure 12
equipment power supply
2
30 50
M
04_302_N
1.Alternator - 2. Electric starter motor - 3. Battery -
4. Engine wire harness.
The connection of the +B terminal of the alternator to the
positive +30 terminal of the electric starter motor must
be achieved with a conductor having a cross section of at
least 10 mm 2 . 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 mm , allows to obtain, as shown in the figure, the
2
simultaneous connection of the alternator to the battery. 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
do not use any magneto-thermal activation protection
items to stop engine. Using off-the-shelf equipment, you
stop the engine energizing the proper solenoid valve. in
lack of power supply you could not stop the engine.
insTAllATiOn direcTiVe
4
+B W D+
1
3
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 24.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 13.
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+).
if two engines are installed
The presence of two generators allows to keep the recharg-
ing functions separated: the generator (G1) recharges the
battery (AC1) dedicated to starting both engines and pow-
ering 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 pro-
posed in Chapter 13 fully complies with this need, assuring
the full functionality and independence of the two circuits.
MAY 2006