Iveco NEW DAILY, Instructions Manual

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NEW DAILY
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ELECTRONIC SUB-SYSTEMS
ELECTRONIC SUB-SYSTEMS
5.4 ELECTRICAL SYSTEM: CURRENT INTERVENTIONS AND DRAWS
31
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Printed 603.95.789
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1 Ed. - Base 02/2014
Additional alternators
a) the diesel-powered NEW DAILY is equipped with an advanced ("smart") alternator commanded by the engine control unit.
This alternator is capable of delivering electrical current only when it is really necessary, and is able to always guarantee a correct
state of battery charge through the sensor on the negative pole.
In cases where there are very onerous electrical loads a second alternator may be used, and it must be installed (with all mechanical
requirements necessary for compatibility with the vehicle and under responsibility of the body builder) according to the diagram in
Figure 28.
The additional alternator must be of the traditional type, with pin L connected in order to ensure excitation with a current
between 150 and 200 mA. The diagnostic light is optional, but a resistance is still necessary to ensure excitation.
Dual alternator operation requires that the additional traditional alternator is the one that delivers in any condition (as it is not con-
trolled), while the original "smart" alternator intervenes when the electrical balance becomes negative (the battery charge status is
monitored)
The diagnosis of the two alternators is ensured by:
●
a battery indicator on the instrument panel, with regard to the first alternator
●
an external diagnostic light (if installed) for the additional alternator
208950
Figure 28
1.
"Smart" first use alternator
2. Additional standard alternator
3. Battery
4. Electrical loads
5. 15 from ignition switch
6.
Body Computer
7. Instrument panel
8. Diagnostics Lamp or LED +Res. (current between 150
and 200 mA)
9. Engine Management control unit