Main Control Board. GE Consumer & Industrial ZIC360NR, ZICS360NR

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Main Control Board. GE Consumer & Industrial ZIC360NR, ZICS360NR | Manualzz

Main Control Board

The main control board, located behind a metal cover at the top of the refrigerator in the machine compartment, manages the operation of the refrigerator by calculating response from various inputs.

– 22 –

C O N N E C T O R P I N I N P U T

J1 or J14

J1 or J14

J1 or J14

J1 or J14

1

2

3

4

V

V

V

V

D

D

D

D

C

C

C

C

C O N T R O L B O A R D P I N D E F I N I T I O N S

O U T P U T F U N C T I O N

Feedback of fresh food thermistor value. Thermistor is NTC, when temperature drops, resistance value increases, causing return voltage reduction. This value is used to cycle fresh food fan

(when used), evaporator fan, compressor, and condensor fan. Feedback is filtered to respond to

8 degrees of change per minute.

Feedback of second fresh food thermistor value (when used). Thermistor is NTC, when temperature drops, resistance value increased, causing return voltage reduction. This value is used to cycle fresh food fan (when used), evaporator fan, compressor, and condensor fan.

Feedback is filtered to respond to 8 degrees of change per minute.

Feedback of freezer thermistor value. Thermistor is NTC, when temperature drops, resistance value increases, causing return voltage reduction. This value is used to cycle evaporator fan, compressor, and condensor fan, and will not cycle fresh food fan (when used). Feedback is filtered to respond to 8 degrees of change per minute.

Feedback of evaporator thermistor value. Thermistor is NTC, when temperature drops, resistance value increases, causing return voltage reduction. This thermistor value is used to cycle the heater on during defrost when temperature is below defrost value and off when the temperature is above defrost value. This value is also read during power-up to determine if refrigerator goes into pulldown mode or cycle continuation. Feedback is unfiltered, responds immediately.

J1 or J14 5 VDC Provides 5 VDC for thermistors and personality pins on J1.

C O N T R O L B O A R D P I N D E F I N I T I O N S

C O N N E C T O R P I N

J2 or J13 1

I N P U T

H z

O U T P U T F U N C T I O N

F e e d b a c k f r o m s p e e d s .

e v a p o r a t o r f a n .

T h i s f e e d b a c k f r e q u e n c y i s u s e d t o c o n t r o l t h e P W M f o r f a n

J2 or J13 3 V D C F a n c o m m o n .

V D C g r o u n d

J2 or J13

J2 or J13

J2 or J13

J2 or J13

4

5

7

8

V D C

V D C

V D C

V D C

O u t p u t t o e v a p o r a t o r f a n f o r m o t o r o p e r a t i o n .

E f f e c t i v e v o l t a g e i s d e t e r m i n e d b y P W M .

i

O u n t p u t t o c o n d e n s o r

E E P R O M .

f a n f o r m o t o r o p e r a t i o n .

E f f e c t i v e v o l t a g e i s d e t e r m i n e d b y P W M , s p e e d s e t

O u t p u t

P W M .

t o E x p r e s s C h i ll ( Q u i c k C h i ll ) f a n f o r m o t o r o p e r a t i o n .

E f f e c t i v e v o l t a g e i s d e t e r m i n e d b y

P r o v i d e s 1 2 V D C s u p p l y v o l t a g e t o a ll f a n s , c o n s t a n t v o l t a g e.

C O N N E C T O R P I N

J3 or J10 1

I N P U T

2 J3 or J10

J3 or J10

J3 or J10

3

4

C O N T R O L B O A R D P I N D E F I N I T I O N S

F U N C T I O N O U T P U T

V D C D a m p e r s t e p p .

e r m o t o r

V D C D a m p e r s t e p p .

e r m o t o r

V

V

D

D

C

C

D

D a a m p m p e e r r s t e s t e p p .

e r p p .

e r m o t o m o t o r r

– 23 –

C O N N E C T O R P I N

J4 or J16

J4 or J16

J4 or J16

1

2

3

I N P U T

D i g i t a l

C o m m u n i c a t i o n

C O N T R O L B O A R D P I N D E F I N I T I O N S

O U T P U T

D i g i t a l

C o m m u n i c a t i o n

T w o w a y d i g i t a l

( b o a r d ) , d i s p e n c s e o r m m u n i b o a r d , c a t i o n b e t w e e n m a i n c a n d Q u i c k C h i ll b o a r d .

o n t r o l b o a r d , t e m p e r a t u r e c o n t r o l

V D C 1 2 V D C s u p

V D C D C c o m m o .n

F U N C T I O N

C O N N E C T O R P I N

J

J

J

5

5

5

1

2

5

C O N T R O L B O A R D P I N D E F I N I T I O N S

I N P U T O U T P U T

V

V

D

D

C

C

F U N C T I O N

1 2 V D C

C o m m o n t o

-

C

V il

D m a

C t e g r o

C u o n n t d r o l w h

D e n r a e w e x p r r e d a s s m p e r t h a w w h e n i s s e

E l e x p r c t e d e

.

s s C h i ll ( Q u i c k C h i ll ) i s s e l e c t e d .

1 2 V D C

C o m m o n t o

-

C

V il

D m a

C t e g r o

C u o n n t d r o l w h

D e n r a w e

E x p r r e d a s s m p e r

C h i ll w h

( Q e u i n c

E x p k C h r e i ll s

) s i s

T h a w s e l e c i s t e s d .

e l e c t e d .

V D C P r o v i d e s 5 V D .

C f o r E x p r e s s C h i ll ( Q u i c k C h i ll ) t h e r m i s t o r

J 5 6 V D C

F e e d b a c k r e s i s t a n c e o f E x v a l u e p i r e n c s s r e

C h i ll a s e s ,

( Q u i c k C h i ll ) c a u s i n g a t h e r m i s r e d u c t i o n t o r .

i n r

T h e r m i s t o r e t u r n i s v o l t a g e .

N T C , w h e n t e m p e r a t u r e d r o p s ,

C O N N E C T O R P I N

J 7 1

I N P U T

C O N T R O L B O A R D P I N D E F I N I T I O N S

O U T P U T

V A C

F U N C T

S w i t c h e d L 1 v o .

l t a g e t o t h e a u g e r m o t o r 1 2 0 V A C

I O N

J 7 2 V A C S w i t c h e d L 1 v o .

l t a g e t o t h e c r u s h e r s o l e n o i d 1 2 0 V A C

J

J

J

J

J

J

7

7

7

7

7

7

3

4

5

6

7

9

V

V

V

V

A

A

A

A

C

C

C

C

V A C S w i t c h e d L 1 v o .

l t a g e t o t h e w a t e r v a l v e 1 2 0 V A C

R e c e i v e s L 1 i n p u t f r o m f r e e z e r d o o r s w i t c h w h e n f r e e z e r d o o r i s c l o s e d .

V A C S w i t c h e d L 1 v o l t a g e t o t h e E x p r e s s C h i ll ( Q u i c k C h i ll ) h e a t e r 1 2 0 V A C .

R e f o r c e i v e e v a p s L 1 o r a t o i n p u t r f a n a d a p t i v e d e f r o s t c f r o c o m n t r f r e s h o l , f il n e r o o d p r o d t e o o r s c t i o n w i t c h m o d w e h c e n a l s c u w l a i t c h c t i o n s , l o d s e s o o r a l c u l a t i o n s .

( d o o r a l a r m o p e n ) .

T h i s c a l c u l a t i o n s , i n p u t a n d i s u s e d

R p e c o s i e i v e t i o n s

(

L 1 s w i t i n c h p u t f r o m f r e e z e r d e p r e s s e d ) f o r d d o i o s p r e s w n s i t c h e r il w h e n g h t a n s d w i t c h c d l o o s o r e s m

( a d g o n o e r t t o p e n ) .

o

T h i s i n p u t i s u s e d f a o r l a r e v m a p o r a t o r f a n c a l c u l a t i o n s , c o a n n t d r o l , il n e r s o m e d p o r o o r t e i n c t i o n t e r l o m c k o f d e u n c a c t i o l c u n s .

l a

S t i o n s , w i t c h a d a p t i v e m u s t b e d e f r o s t c l o s e d c i n a l d c u l a o o r t i o n s , c l o s e d d o o r d u c t e n e r g i z e .

A C .

n e u t r a l i n

Some of the low voltage DC connector labeling on this model may differ from other models. The function and diagnostics for these connectors are identical for all models.

J4 or J16 J3 or J10

J2 OR J13

J1 or J14

– 24 –

C O N N E C T O R P I N

J15

J15

1

2

I N P U T

C O N T R O L B O A R D P I N D E F I N I T I O N S

O U T P U T

VDC

Common

F U N C T I O N

12V variable frequency square wave to control compressor speed.

Note: The J15 connector controls compressor speed through voltage AND frequency. When the main board calls for compressor operation, J15 output between pins 1 and 2 should be approximately 5 VDC with the harness connected and approximately 12 VDC with the harness disconnected. The voltage will not change regardless of compressor speed. A change in frequency controls the compressor speed.

C O N N E C T O R P I N

J 9 1

I N P U T

C O N T R O L B O A R D P I N D E F I N I T I O N S

O U T P U T

V A C

F U N C T I O N

S w i t c h e d e n e r g i z e d

L a

1 n v o l t a g e d u s e s t o t h i s t h e i n f d e f r o o r m a s t c t i o n i r t c u i t o d

1 2 0 V e t e r m i n e

A C i f t

.

h

A e t i m e r n e x t c o u n t d e f r o s t s h o w c y c l e n o n a d a p t i v e .

l o i s n g a d t h i s a p t i c i r c u i t v e o r i s

C O N N E C T O R P I N

J 1 1 1

I N P U T

V A C

C O N T R O L B O A R D P I N D E F I N I T I O N S

O U T P U T F U N C T I O N

C o n s t a n t L 1 v o l t a g e t o c o n t r o l b o a r d c i r c u i t s 1 2 0 V A C i n p u t p o t e n t i a l f o r s w i t c h e d L 1 t e r m i n a l s .

C O N N E C T O R P I N I N P U T O U T P U T

C O N T R O L B O A R D P I N D E F I N I T I O N S

F U N C T I O N

J 1 2 1 V A C .

L 1 v o l t a g e t o t h e d r a i n p a n h e a t e r

Some of the low voltage DC connector labeling on this model may differ from other models. The function and diagnostics for these connectors are identical for all models.

J4 or J16 J3 or J10

J2 OR J13

J1 or J14

– 25 –

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