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[ III Outdoor Unit Components ]
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HWE09120 GB
3. INV board
(1) PUHY-P72TJMU-A
Faston terminals have a locking function. Make sure the cable heads are securely locked in place. Press the tab on the ter-
minals to remove them.
IGBT
(Rear)
SC-P1
Rectifier diode output (P)
CN6
Open: No-load operation setting
Short-circuited: Normal setting
CN5V
GND
Output 5VDC
LED1
Lit: Inverter in normal operation
Blink: Inverter error
CN4
GND
(Fan Board)
Serial communication signal output
CNDC
Bus voltage output
P
N
CN2
S
erial communication signal output
GND
Input 17VDC
SC-V
Inverter output(V)
SC-W
Inverter output(W)
CT22
Current sensor
(W)
SC-U
Inverter output(U)
CT12
Current sensor
(U)
SC-R
Input(L1)
SC-S
Input(L2)
SC-T
Input(L3)
CT3
Current sensor(
L3)
TB-N(Note)
Bus voltage output
(N)
TB-P(Note)
Bus voltage output(P
)
SC-P2
Bus voltage Input(
P)
RSH1,2
Overcurrent detection
resistor
C30,31,32
Smoothing capacitor