Mitsubishi Electric City Multi PLFY Series, Technical & Service Manual

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9-2. ELECTRICAL CIRCUIT (Controller board and wiring diagram (Panel))
<LED 2 Orange display>
Turn OFF : No power supply
Blink : Storage detection switch ON (short)
One blink : Storage detection switch OFF (open)
Two blinks : Tension detection switch OFF (open)
<controller board>
<LED 4 Green display>
Check item Check point Normal Remarks
Up/down controller
P.C. board supply
voltage
CN4A
(between 1–2)
11–14 V AC
Up/down machine
supply voltage
CN3B
10–13.5 V DC
Check when instructing up/down with LED
blinking once.
<Up/down machine>
Check item Check point Normal Check contents
Storage detection
switch
CN2E open or short Check if it is short when pressing push switch.
Tension detection
switch
CN2F, CN2G open or short Check if it is short when string b is tensioned.
Motor CN3B, CN3C 5–20
"
Check if it is not open or short.
Entwining strings Pull string
Retention:
about 2 kgf
Check if string is drawn out by pulling with 4 kgf.
Blink : Connecting
CN3C
(between 1–2)
(between 1–2)
[EMERGENCY OPERATION]
1. If the wireless remote controller for ELEVATION PANEL is faulty or lost, operation
will be possible using the emergency up/down switch at the wireless signal receiver
or wired remote controller.
▪ For the operation using the emergency up/down switch at the wireless signal
receiver, refer to SW1 and SW2 on the left [LEGEND].
2. When machine for ELEVATION PANEL breaks down, a intake grille is fixed for
a while, and the operation of the unit can be done.
▪ Refer to installation manual with the grille for the details such as an installation
method.
1 2 3 4 5 6
ON
OFF
<*2>SW2 on U.B
LOWERING
DISTANCE
SET UP
2.0 m
2.4
m
1.2 m
1.6m
(Initial
setting)
1 2 3 4 5 6
ON
OFF
1 2 3 4 5 6
ON
OFF
1 2 3 4 5 6
ON
OFF
LOWERING
DISTANCE
SET UP
3.6
m
4.0 m
2.8 m
3.2 m
1 2 3 4 5 6
ON
OFF
1 2 3 4 5 6
ON
OFF
1 2 3 4 5 6
ON
OFF
1 2 3 4 5 6
ON
OFF
[Note]
1. Symbols used in wiring diagram above are, : Connector, : Terminal (block).
2. The black square ( ) indicates a switch position.
Note: The actual lowering distance might be
different from the distance in the table 2
since it can also be set using the wired
remote controller.
SYMBOL NAME
U.B ELEVATION PANEL CONTROLLER BOARD
LED4
LED2
LED GREEN
(COMMUNICATION WITH INDOOR UNIT)
LED ORANGE
(INTAKE GRILLE CONDITION (See table *1))
U.K 1 ELEVATION MACHINE
M
I.B INDOOR UNIT CONTROLLER BOARD
LS1 DETECTION SWITCH (INTAKE GRILLE STORAGE)
R.B WIRED REMOTE CONTROLLER
MOTOR (ELEVATION)
LS21 DETECTION SWITCH (STRING TENSION)
W.B PCB OF SIGNAL RECEIVER
LED1
BZ
LED GREEN
(OPERATION INDICATION)
LED2 LED ORANGE
(PREPARATION FOR HEATING)
SW1 EMERGENCY HEATING
(LONG PRESS FOR OVER 2SEC.)
SW2 EMERGENCY COOLING
(LONG PRESS FOR OVER 2SEC.)
INTAKE GRILLE/DOWN
(SHORT PRESS)
INTAKE GRILLE/UP
(SHORT PRESS)
BUZZER
RU RECEIVING UNIT
[LEGEND]
U.K 1
R.B
I.B
U.B 2
CN3B
(WH)
1 3
M
LED4
LED2
TB5 TB6
1
2 2
1
2
W.B
9
LED1
SW2
LED2
SW1
CNB
(WH)
CN90
(WH)
4
U.K 1
(GNYE)
2 1
CN2G
(BK)
LS21
2 1
CN2E
(RD)
LS1
2
1
CN2F
(BK)
LS21
Grille side
Indoor unit
side
2
CN3C
(WH)
1 3
M
1 2 3 4 5 6
SW2
ON
OFF
Lowering distance setting
<See table *2>
9 1
1 4
BZ
RU
<*1> LED2 on U.B
2-TIME BLINKING
1-TIME BLINKING
LIGHTING
LED2
INTAKE GRILLE HOUSED AND STRING TENSIONED
INTAKE GRILLE NOT HOUSED AND STRING TENSIONED
STRING NOT TENSIONED
INTAKE GRILLE CONDITION
CN4G
(BK)
CN4G
(BU)
SW2
LED2 LED4
9-2-1 DIP SW
9-2-2. Check point of trouble
OCH657