Installation Instructions

9 ELECTRICAL SYSTEM
B1700·B2100·B2400 WSM,11770
(3) Alternator
A compact alternator with an IC regulator is used,
having the following characteristics:
• Approximately
26% lighter and 17% smaller than
a standard alternator.
•
Cooling performance and safety have been
improved
by combining the cooling fan with the
rotor and incorporating the fan/rotor
unit inside
the alternator.
•
IC regulator is fitted inside the alternator.
•
The rectifier, IC regulator and similar components
are
easy to remove, making it easier to service the
alternator.
0087F032
(4) Ie Regulator
2
4
3
I
I
I
-L.
1
(7) Alternator
(8) Rotor Coil
5
(5) Battery
(6)
IC Regulator
(3) Charge Lamp
(4) Load
I
L--=T-
8
0087F033
(1) Stator Coil
(2) Main Switch
An IC regulator uses solid state transistors, chips or
other semiconductor elements instead
of the relays
in a conventional regulator. Stable characteristics
are achieved by cutting off the field current.
IC regulators have the following characteristics:
• The control voltage does
not change over time, so
the need for readjustment is eliminated. Since
there are no moving parts, IC regulators are
extremely durable and resistant
to vibration.
•
The overheat compensation characteristics ensure
that the control voltage is reduced as the
temperature rises, so the battery is charged at just
the
right level.
The internal circuitry of the IC regulator is shown
in the diagram. It consists of a hybrid IC
incorporating a monolithic IC. The internal circuitry
of the monolithic IC extremely complex, so it is
shown as simply "M.IC circuit".
Tr1 acts as the contacts controlling the field
current, and Tr2 acts as the charge lamp relay
controlling the flashing
ofthe charge lamp.
The M.IC circuit controls Tr1 and Tr2, and monitors
the alternator
output voltage, and detects any drop
in Lterminal voltage or breaks in the rotor coil.
9-M12