Unit Circuit Board; Control Board (Main Board) - Mitsubishi Electric CAHV-P500YA-HPB Service Handbook

[ III Unit Components ]

[3] Unit Circuit Board

1. Control board (MAIN board)

CNDC
Bus voltage input
P
N
Voltage output at
the dry contact
Rotary switch
SWU1-3
Slide switch
SWS1-2
Actuator
driving output
CNAC
200 VAC input
R
S
F06
Fuse
250V/3.15A
HWE10060
CN 2
CN801
Serial communication
Pressure switch
signal input
connection
GND
Output 17VDC
External signal input
(contact input)
CN332
Output 18VDC
GND(Fan board)
LED2
Lit during normal
CPU operation
CN102
outdoor transmission line input/output
(30VDC)
- 34 -
CN 4
GND
Serial communication signal output
LEV
driving output
CN3A
Remote controller
LED1
Digital display
LED3
Energization status
Dip switch
SW1-3
Push switch
SWP1-3
Sensor
input
Dip switch
SW421
CNIT
Output 12VDC
GND
Output 5VDC
RX (Power supply detection
input)
TX (Power supply ON/OFF
signal output)
CNS2
Transmission line input/output
for centralized control system
GB