Unit Circuit Board - Mitsubishi Electric CAHV-R450YA-HPB Service Manual

[ III Unit Components ]

[3] Unit Circuit Board

1. Control board (MAIN board)
CNDC
Bus voltage input
1
P
3
N
CN511
Dry contact output
Slideswitch
SWS1
1 :REMOTE
2 :OFF
3 :LOCAL
Actuator driving
output
CNOUT
12 VDC output
1
Singal output to IO board
2 ~ 6
CN110
Open-phase detection signal
1
input
GND
2
CNRYA
72C drive signal output
CN995
12 VDC output
1
3.3 VDC output
2
Signal output to IO board
3
Signal output to IO board
4
GND
5
F001
3.15A 250VAC
fuse
HWE22020
CN801
Pressure switch
connestion
CN332
Output 16 VDC
1
2 GND(Fan board)
CNAC CNAC2
CN51
AC input AC output 12 VDC output
3
L1 L1
1 1 4 Error display output
3 N 2 N
5 Operation display output
CN61 CN601
1 16 VDC output Portable charger
N
2
5 18 VDC output
6 N
External signal input
(contact input)
- 46 -
CN4/4A/4B
Serial communication signal output
1
2 GND
3 Serial communication signal input
4 GND
LEV
driving output
Sensor input
CN62
1 - Transmission signal input/output (30 VDC) 2
- Power input signal for the centralized
3 4
control system (30 VDC)
- Transmission signal input/output (30 VDC)
5 6
CN999
5 VDC output
1
2 ~ 6 Signal for remote controller
Signal input from IO board
7
Digital display
LD301
Rotary switch
SWU1-2
Push switch
SWP1-3
Dip switch
SW4-7
CNIT
12 VDC output
1
2 GND
3 5 VDC output
4 Signal output for IT
terminal
Singal input for IT
5
terminal
CNPS
12 VDC output
1
GND
2
5 VDC output
3
Power supply detection
4
input
Power supply ON/OFF
5
signal output
GB