Description) MICOM Pin No. 41, 42, and 43 terminals send signals of which wave form are shown on the right in 3.33 msec
cycles. These signals pass through input terminals (No. 3, 6, and 8) of motor driving IC6 (TA7774AP) and are sent to
the output terminal (No. 10, 11, 14, 15). These output signals form rotating magnetic on the coils wound on each
phase of stator and motor rotates. When signals are input to INa and INb of motor driving IC (TA774AP), rotating
magnetic forms on the coils wound on each phase of stator and stepping motor damper rotates.
1-9. Temperature Compensation and Over Cooling/Weak Cooling Compensation Circuit
1. Freezer and refrigerator compartment temperature compensation
• Temperature Compensation Table by Resistance Adjustment (the difference compared to the present temperature)
EX) The temperature of refrigerator increases by 1 °C if refrigerator compartment compensation resistance is changed
from 10 k
Ω
to 18 k
Ω
.
MICOM CIRCUIT DESCRIPTION
- 38 -
Refrigerator Compartment
Temperature Compensation
Freezer Compartment
Temperature Compensation
Freezer Compartment
Refrigerator Compartment
Resistance value
Temperature
Resistance value
Temperature
Remarks
(RCF1)
Compensation
(RCR1)
Compensation
180 k
Ω
+5 °C
180 k
Ω
+2.5 °C
Compensate to
56 k
Ω
+4 °C
56 k
Ω
+2.0 °C
warm
33 k
Ω
+3 °C
33 k
Ω
+1.5 °C
18 k
Ω
+2 °C
18 k
Ω
+1.0 °C
12 k
Ω
+1 °C
12 k
Ω
+0.5 °C
10 k
Ω
0 °C
10 k
Ω
0 °C
Reference temperature
8.2 k
Ω
-1 °C
8.2 k
Ω
-0.5 °C
5.6 k
Ω
-2 °C
5.6 k
Ω
-1.0 °C
3.3 k
Ω
-3 °C
3.3 k
Ω
-1.5 °C
2 k
Ω
-4 °C
2 k
Ω
-2.0 °C
Compensate to
470
Ω
-5 °C
470
Ω
-2.5 °C
cool
#8
#3
(INa)
#6
(INb)
#15
(A)
#10
(B)
#14
(A)
#11
(B)
(reverse rotation)
(forward rotation)
Содержание LRSPC2031BS
Страница 46: ...1 GR P247 GR P207 GR L247 GR L207 MICOM CIRCUIT DESCRIPTION 46 GR L247 207 GR P247 207 WORK ...
Страница 47: ...2 GR C247 GR C207 GR B247 GR B207 GR B197 MICOM CIRCUIT DESCRIPTION 47 JCR1 JCR2 JCR3 JCR4 ...
Страница 49: ...MICOM CIRCUIT DESCRIPTION 49 Freezer Temp Control Refrigerator Temp Control Crushed Water Cube ...
Страница 51: ...MICOM CIRCUIT DESCRIPTION 51 Freezer Temp Control Refrigerator Temp Control ...
Страница 58: ...CIRCUIT 58 GR B247 GR B207 GR C247 GR C207 GR B197 ...
Страница 113: ...P No 3828JD8456H APR 2002 Printed in Korea ...