Unit Circuit Board - Mitsubishi Electric CAHV-P500YB-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
F01
Fuse
250V/3.15A
HWE15070
CN801
CN 2
Pressure switch
Serial communication
connection
signal input
GND
Output 17VDC
External signal input
(contact input)
LED2
Lit during normal
CPU operation
CN332
Output 18VDC
GND(Fan board)
CNS2
Transmission line input/output
for centralized control system
CN102
outdoor transmission line input/output
(30VDC)
- 36 -
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
CN105
IT TERMINAL
Dip switch
SW421
CNIT
Output 12VDC
GND
Output 5VDC
RX (Power supply detection
input)
TX (Power supply ON/OFF
signal output)
GB