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118
5.
ELECTRICAL PARTS
Q)
®
:§:@
I
fig. 5. 30
<D
®
®
Charging wiring
AC generator
Current limiter
Ignition switch
with current limiter
@
Selenium rectifier
©
Battery
®
Load
--indicate
night time tiding
------indicate
day timeriding
f-f-+--+-+-of-+-
I
t '
I
Fig.
5.
31
AC generator characteristic
(D
Full wove rectifying
current
@
Battery discharging-charging
current
--
indicate nighttime riding
(V)
(A)
------indicate
daytime riding
Fig. S.
:02
AC generator with current limiter
(D
Battery voltage
Full wave rectifying
current
Battery discharging-charging
current
1.
Installation
This type current limiter can be installed on
any eng;ne circuit which utilizes A. C generator ·
for charging the battery, however, make sure that
the correct type is used.
The construction and the wiring are practically
the same with all types;
however, since the
capacities will differ, one which has the proper
capacity must be used or else, it may become
damaged.
2.
Operation
As the battery continues to become charged,
the resistor within the current limiter senses the
current flow and as overcharge condition
de-
velops, the excess charge current is controlled
by grounding.
3.
Servicing
( 1l
Do not remove the rubber cap installed on
the outside of the current limiter body.
The
nut under the rubber cap should not be tam-
pered with.
Rubber cap is to prevent ground-
ing and if used without the cap, a possibility
of accidental grounding may result.
{21 When servicing, make sure that the key
switch is in the OFF position.
(3)
During installation, make sure that the unit
is properly mounted, and perform the wiring
properly.
(4)
Improperly wired current limiter will not only
cause damage to the unit, but will also damage
the battery.
(51 Use only the current limiter which has been
specified.
4.
Characteristic
Fig. 5. 31 and 32
shows the comparative
difference in battery voltage and the battery charg-
ing current between the use of the SCR current
limiter and without its use.
{Fig. 5. 31, 32)
This current limiter senses the battery terminal
voltage and controls the input from the generator,
therefore, the battery terminal voltage is maintained
constant without regards to the generator rpm.
When the battery charge is low, the limiter will
not function and the battery will be charged with
the current as if the limiter had not been connected
into the circuit.
As the battery becomes charged
and approaches and exceeds the value controlled
by the limiter, the limiter will
start functioning.
(Fig. 5.30, 31, 32)
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