Volvo Penta D2-55, Руководство по ремонту

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Group 30 Electrical system
Alternator
Voltage regulator with sensor system
The voltage regulator on the standard alternator
(14V/60A) is equipped with a sensor system.
The sensor system compares the charge voltage be-
tween the alternator terminals, B+ and B-, with the
voltage across the battery positive and negative termi-
nals. The voltage regulator then compensates for any
voltage drop in the cables between the alternator and
the batteries, by increasing the charge voltage sup-
plied by the alternator as necessary.
When delivered from Volvo Penta, the sensor system
is not activated. The connection has probably been
done during engine installation, however.
1. Sensor wire (yellow, 1.5 mm
2
)
2. Charge splitter (extra equip.)
3. Alternator
4. Fuse panel (extra equip.)
5. Starter motor
6. Main switch
7. Auxiliary batteries (extra equip.)
8. Starting battery (engine)
Charge splitter
As extra equipment, the engine’s standard alternator
can be fitted with a charge splitter. Two independent
battery circuits can in this way, be charged at the
same time. The charge splitter separates the two cir-
cuits from each other so that the engine’s starting battery
is kept fully charged even if the “accessory batteries”
are weak or even totally discharged.
Connecting the sensor system
IMPORTANT! Stop the engine and disconnect
power with the main switch before working on
the electrical system.
1. Release the yellow sensor wire from connection
B+ on the alternator.
2. Splice the wire (yellow, 1.5 mm 2 ) and run it to the
batteries. Connect the wire to the batteries’ posi-
tive pole (+).
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