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Hitachi MP-1802 Technical Manual page 11

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5 - 2
M P - 3 5 5 0 D r i v e
0 ,
1 U n i t
C o n n e c t o r ( l t p P i n H e a d e r :
E C o n n e c t o r )
P i n
N o .
S i g n a l
D a t a D i r e c t i o n
f n s i d e H
M D D
E x p l a n a t i o n
1
GND
GRO UN D
z
H E A D L O A D
-
H e a d l o a d s
w h e n r r L r f
( w h e n R E A D Y - r r L t f i n
s e l e c t e d
d r i v e )
1
GND
GRO UN D
l
4
GND
<---.-->
GRO UN D
5
G N D
GRO UN D
6
nnalv
B e c o m e s r r L r r w h e n t h e
d i s k
r o t a t e s
n o r m a 1 1 y .
7
n n T n
LJII ]J
G R O U N D
B
I N D E X
0 u t p u t
t f L r r p u l s e
w h e n
i - n d e x h o l e
i s
d e t e c t e d
a f t e r
d i s k r s
r o t a t i o n .
GND
+-+
GRO UN D
1 0
S g i , g C T O
E n a b l e s d r i v e
0 s i g .
r e c e i v e / s e n d a b l e
w h e n
I t r r l
!1
.
1 1
GND
GRO UN D
1 2
SEIEMl
W h e n r f L r r , e n a b l e s s e n d -
i n g f r e c e i - v i n g o f d r i v e
1 .
1 3
GND
GROUN D
4 t
t 4
t \
GND
G R O U N D
t o
M O T O R O N
D r i v e
m o t o r o D e r a t e s
w h e n
l f L l f
.
1 7
GND
GRO UN D
1 8
m
C o n t r o l
h e a d m o v e d i -
r e c t i o n .
1 g
GND
GRO UN D
. . . / g

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Mp-3550