Graco Therm-O-Flow 200 Instructions-Parts List Manual page 28

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2 . O p e n t h e e l e c t r i c a l e n c l o s u r e d o o r .
3 .
o u t e I / O c a b l e s t h r o u g h s t r a i n r e l i e f .
4 .
e m o v e p o w e r f r o m t h e P L C .
5 . C o n n e c t t h e P L C t o c o n n e c t o r s H 1 a n d H 2 .
Note
E a c h c o n n e c t o r h a s f o u r s i g n a l s . T h e
M Z L P b o a r d s p e c i fi e s t h e i n p u t r a n g e f o r
e a c h s i g n a l . S e e t h e f o l l o w i n g t a b l e f o r
p i n a s s i g n m e n t s .
F i g u r e 1 5
2 8
H 1 C u s t o m e r n p u t
S i g n a l
P i n
1
1 , 2
2
3 , 4
3
5 , 6
4
7 , 8
H i g h : 1 0 – 3 0 V D C , L o w : 0 – 5 V D C . I n p u t s
n p u t s :
f u n c t i o n w i t h o u t c o n c e r n f o r p o l a r i t y . A p p l y i n g " h i g h "
v o l t a g e w i l l t u r n t h e h e a t e r s o n a n d e n a b l e s e t b a c k .
e m o v i n g v o l t a g e w i l l t u r n t h e h e a t e r s o f f a n d d i s a b l e
s e t b a c k .
0 – 2 5 0 V A C , 0 – 3 0 V D C , 2 A M a x i m u m .
O u t p u t s :
H 2 C u s t o m e r O u t p u t
S i g n a l
P i n
1
1 , 2
2
3 , 4
3
5 , 6
4
7 , 8
3 3 4 1 3 0 A

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