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Circuit Descriptions

-4) Door S/W Sensing Circuit

 Door Parts Funtion

1 ) F-Room door open is picked up based on the state (5V/0V)of the MICOM No.31 Port.

When the F-Room door opens, it becomes short between the Door S/W 1&2.And Door S/W 3&4 open.

Vcc  R401  Door S/W (3&4)open  R402(10K)  MICOM 31 PORT.

When the state of MICOM 31 PORT is 0.7V, the door is picked up as closed. When it is 5V, the door is considered to be open.

2) R-Room door open is picked up based on the state (5V/0V)of the MICOM No.32 Port.

When the R-Room door opens, it becomes short between the Door S/W 1 &2.And Door S/W 3&4 open.

Vcc  R403  Door S/W (3&4)open  R404(10K)  MICOM 32 PORT.

When the state of MICOM 44 PORT is 0V,the door is picked up as closed. When it is 5V, the door is considered to be open.

3) When door open is detected, the MICOM have the relevant Fan Motor stop and the relevant Room Lamp light up.

Depending on the state of Door Open/Close,there are following operations; Lamp On/Off, Fan Motor On/Off and Door open alarm.

So, check relevant items upon A/S.

- DOOR PARTS FUNTION

Terminal

Operation Volt(state)

Freezer

(No.31)

DOOR OPEN

DOOR CLOSE

5V (HIGH)

0.7V (LOW)

Fridge

(No.32)

DOOR OPEN

DOOR CLOSE

5V (HIGH)

0.7V (LOW)

- SENSOR PARTS FUNTION

Terminal No Remark

F-SENSOR (51)

F-DEF-SENSOR (52)

R-SENSOR (53)

R-DEF-SENSOR (54)

EXT-SENSOR (57)

Micom terminal

voltage may

change

according temp.

1 2 ... 72 73 74 75 76 77 78 79 80 81 82 ... 89 90

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Samsung RSE8KPAS Specifiche Pagina 77