C i rcu i t Descr i pt i on ( cont ' d )
Q1 0 ( Q30 )
t u r ns O F F s e n d i ng
l og i c
LOW t h r ough R 1 2 ( R 32 ) a n d R 1 3 ( R 3 3 )
t o t he base o f Q 1 1 ( Q 3 1 ) .
Q 1 1 ( Q 3 1 )
t u r n s O F F a l l ow i ng + 1 2 VOC f r om t he
J 1 connec t o r t o p a s s CR 1 2 ( CR 3 2 )
t o
t.A 1 ( t.A 3 ) p i n 6+7 .
Two 5 V Zene r d i od e s ( CR 1 7
&
CR 1 S )
( CR 37
&
C R 3S )
a n d 4 d i odes ( CR 1 3-
CR 1 6 )
( CR 3 3-CR 36 )
conduct
to
sup p r e s s
I n d u c t I v e
vo I t age
k i ckback .
CR 1 7 ( CR 37 ) c l amps t he
I nduc t i ve vo l t age k i ckback t o 5 V .
R e a d
uppe r d a t a b y t e s
S 1 ( S 3 )
I s
t he
sensor
p l ug
t h a t
I n t e r f aces
w i t h
t he
r e e l
senso r
boa r d .
Da t a
I npu t s a t p i ns
1 -6
p a s s i ng
t h r ough
I nv e r t l ng-Schm l t -
t r i gge r s
( U 1 3 ) ( U 3 3 )
t o
U 1 0 ( U 3 0 ) .
U 1 0 ( U 30 )
l a t c h e s
t he d a t a I nput
to
t he ou t pu t .
S 1 ( S 3 )
U 1 0 ( U 30 )
I nput Ouput
P i n
P i n
P i n
B i t
S
1 2
OS
2
6
1 4
09
3
4
1 6
0 1 0
4
1 5
7
0 1 2
5
1 3
9
0 1 3
6
1 1
5
0 1 1
The R e a d Pu l se ( R P 7+S ) ( R P 9+ 1 0 )
s i gna l
f r om J 2 p i n 29 ( p l n 30 )
t o
U 1 0 ( U30 ) p i n 1 + 1 9 e n a b l e s t he
ch i p
for d a t a t r a n s f e r .
The d a t a l ea ve s t he boa r d a t J 2 ,
wh i c h
i n t e r f a ces w i t h
t he
I /O
boa r d .
9 .
R E E L CONTROL BOARD
NOT E S
9-9
Summary of Contents for 5000 Plus
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Page 361: ...1 5 APPEND I CES APPEND I X 4 Co i n Mechan i sm I nc 1 5 6...
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