Kubota Z400-B Handbuch Seite 69

3)
Charging Mechanism
The charging mechanism is described in four sections:
1) When key switch is ON
2)
At starting
3) In charging
4) Over-charge protection
(1) GEN: Magnet type AC generator
(2)
LAMP: Charge indication lamp (not included in the
basic engine)
(3) KEY SW: Key switch (not included in the basic engine)
(4) BATT: Battery (not included in the basic engine)
0172FV51
(5) Blue: GEN connecting terminal
(6) Red: BATT
+
connecting terminal
(7) Yellow: BATT voltage test terminal
(8) Black: BATT - connecting terminal
(9) Green: LAMP connecting terminal
SI, S2: Output control/rectification thyristor (SCR)
0
1 ,
O
2 :
Output rectifying diode
0
3
,0
4 :'
GEN generation detecting diode
Os, 0
6 :
Protection diode for wrong connecting of BATT
Z
1 :
BATT terminal voltage setting diode
0
1 :
GEN generation detecting transistor
O
2 :
LAMP on/off transistor
0
3 :
Gate current control transistor
~:
BATT voltage detecting transistor
1) When Key Switch is "ON"
When the engine is at standstill with key switch set at posi ­
tion 1, the circuit functions to light LAMP, as shown in Fig,
1. With key switch at position 1, current flows to base of O
2
through the route of BATT --- emitter/base of O
2 ---
Rl --­
0
6 - - -
BATT and collector of O
2
is then turned on. As a
result, current also flows to LAMP though the route of
BATT --- emitter/collector of O
2 ---
Os --- LAMP --­
BATT lighting LAMP to indicate that charging is not carried
out. At this time, though current flows to base of 0
3
through
the route of BATT --- emitter/base of 0
3 - - -
R
2 - - -
0
6 - - ­
BATT, collector of 0
3
has no current because GEN is
U172FU52
stationary.
M-59