Mitsubishi Electric CAHV-P500YB-HPB Service Handbook page 46

[ III Unit Components ]
4. Fan board
CNVDC
Bus voltage input
N
P
CNINV
Inverter output
W
V
U
R630,R631
Overcurrent detection
resistor
HWE15070
CN18V
Input 18VDC
GND
DIP IPM Rear
- 39 -
LED3 CN4
Lit during normal GND
Serial communication signal output
CPU operation
CN5
GND(Control board)
Serial communication signal output
CN21
CN22
LED1
Inverter in normal operation
LED2
Inverter error
Serial communication signal output
GND(INV board)
Input 17VDC
GND(INV board)
Input 5VDC
Serial communication signal input
GND(INV board)
Output 17VDC
GB