Olp (Overload Protector); Circuit Diagram - LG LRBP1031W Service Manual

3 OLP (OVER LOAD PROTECTOR)
1) Definition of OLP
(1) OLP (OVER LOAD PROTECTOR) is attached to the
hermetic compressor and protects the motor by cutting
off current in compressor motor in case of over-rising
temperature by Bimetal in the OLP.
(2) When over-voltage flows to Compressor motor, the
bimetal works by heating the heater inside the OLP,
and the OLP protects motor by cutting off current which
flows to the compressor motor.
2) Role of the OLP
(1) The OLP is attached to the hermetic compressor used
for the refrigerator and show case and prevents the
motor coil from being started in the compressor.
(2) Do not turn the adjust screw of the OLP in any way for
normal operation of the OLP.
(Composition and connection Diagram of OLP)

CIRCUIT DIAGRAM

NOTE : This is a basic diagram and specifications vary in different localities.
CIRCUIT DIAGRAM/DIAGRAMME DE CIRCUIT CIRCUIT DIAGRAM/DIAGRAMME DE CIRCUIT
DISPLAY CONTROL P.W.B
affichage de contrôle P.W.B
1 2 3 4 5 6 7 8 9
GY PR BL YL
GY PR BL YL
BO 1
DEF-SENSOR
1 2 3 4 5 6 7 8 9
DEF-capteur
BO 2
BL 3
F-SENSOR
PWB ASSY, MAIN
F-capteur
BL 4
DOOR OPEN/ouverture portière
A GY 5 GROUPE PRINCIPAL PWB
PERCEPTION/réception B RD 6
9 8 7 6 5 4 3 2 1
BL
YL
GN/YL
BK
C
N
L
BL
PR
A
GY
RD
B
BL BL
BK:BLACK BN:BROWN RD:RED BO:BRIGHT ORANGE
YL:YELLOW GN:GREEN BL :BLUE PR:PURPLE GY:GRAY
SB:SKY BLUE PK :PINK GN/YL:GREEN/YELLOW WH/BK:WHITE/BLACK
CONTACTING
POINT
ADJUST
SCREW
RT-SENSOR
RT-capteur
BO RD BN WH WH
• THE PLUG TYPE,
CAPACITOR PART,
BO RD BN WH WH
COMPRESSOR EARTH
PART ON CIRCUIT
DIAGRAM ARE SUBJECT
TO CHANGE IN DIFFERENT
LOCALITIES AND ACCORDANCE
WITH MODEL TYPE
• WHEN STARTING CAPACITOR
IS NOT USED, NO.3,4 OF PTC
START IS CONNECTED
INTERNALLY
• Le type de prise, les pièces du
YL BK GY BN
condensateur, les pièces de mise
à terre du compresseur sur le
diagramme de circuit sont sujets à
des changements dans différentes
BL YL BK GY BN
localités et selon le type de modèle.
• Quand le condensateur de mise
en route n'est pas utilisé, le n
de mise en route PTC est branché
internement.
BK
RUNNING
fonctionnement
M M
RD
BL BL BL BL BL
CAPACITOR PART
pièce condensateur
BK:noir BN:marron RD:rouge
WH:WHITE YL:jaune GN:vert BL :bleu
SB:bleu ciel PK :rose GN/YL:vert/jaune
- 10 -
COVER
BIMETAL
CONTACTING
POINT
HEATER
TERMINALS
BIMETAL
HEATER
3.4
˚
BK
PK
2
BK
C
COMPRESSOR
4 5 S
compresseur
M
3 6
COMP' EARTH
P.T.C STARTER
terre compresseur
starter P.T.C
BO:orange brillant
PR:pourpre GY:gris WH:blanc
WH/BK:noir/blanc
3854JD1040E
Figure 20