Inv Board - Mitsubishi Electric PURY-RP200 Service Handbook

[ III Outdoor Unit Components ]

3. INV board

Bus voltage check
terminal (P)
Note
IGBT
(Rear)
CN1
Bus voltage output
N
P
Bus voltage check
terminal (N)
Note 1
SC-L1
Input(L1)
SC-L2
Input(L2)
SC-L3
Input(L3)
CT3
Current sensor(L3)
1) Before inspecting the inside of the control box, turn off the power, keep the unit off for at least 10 minutes, and confirm that
the voltage between FT-P and FT-N on INV Board has dropped to DC20V or less.
It takes about 10 minutes to discharge electricity after the power supply is turned off.
HWE10020
SC-P1
Rectifier diode output (P)
SC-P2
LED1
Bus voltage Input(P)
Lit: Inverter in normal operation
Blink: Inverter error
CN6
Open: No-load operation setting
CN5V
Short-circuited: Normal setting
GND
5VDC output
CT12
Current sensor(U)
C30 C37
Smoothing capacitor
- 62 -
RSH1
Overcurrent detection
resistor
CN4
GND(Fan Board)
Serial communication
signal output
CN2
Serial communication
signal output
GND
17VDC input
CNTYP Inverter
board type
SC-V
Inverter output(V)
SC-W
Inverter output(W)
SC-U
Inverter output(U)
CT22
Current sensor(W)
GB