Mitsubishi Electric Mr.Slim PUHZ-RP200YHA Service Manual page 54

Outdoor Power circuit board
PUHZ-RP200YHA
PUHZ-RP200YHA
1
PUHZ-RP200YHA
2
PUHZ-RP250YHA
PUHZ-RP250YHA
1
PUHZ-RP250YHA
2
CN5
Detection of
primary current
(Connect to the
outdoor noise filter
circuit board (CN5))
TAB connecter
on X52A
Connect to the
RS resistor
TB-P1
Connect to the
DCL
TB-P2
Connect to the DCL
and the smoothing capacitor
+
CB1
Brief Check of POWER MODULE
W Usually, they are in a state of being short-circuited if they are broken.
Measure the resistance in the following points (connectors, etc.).
If they are short-circuited, it means that they are broken.
1. Check of POWER MODULE
1.Check of DIODE circuit
L1 - P1 , L2 - P1 , L3 - P1 , L1 - N1 , L2 - N1 , L3 - N1
2.Check of IGBT circuit
P2 - U , P2 - V , P2 - W , N2 - U , N2 - V , N2 - W
Note:The marks, L1 , L2 , L3 , N1 , N2 , P1 , P2 , U , V and W
shown in the diagram above are not actually printed on the board.
CN4
Connect to the
outdoor controller
circuit board
(CN4)
P1
TB-C1
Connect to the
smoothing capacitor
–
CB1 , CB2
CN2
Connect to the outdoor controller circuit
board (CN2)
1-5: Power circuit board
signal to the controller board (0-5V DC)
2-5: Zero cross signal (0-5V DC)
3-4: Not used
[ 5 : –
6-5: 15V DC
7-5: 15V DC
W
W
W
L3
L2
L1
P2 N1 N2
CN1
+
– }
282V DC
+
}
+
282V DC
Connect to the outdoor FAN
controller circuit board (CN5)
54
Transmitting
1, 2, 6, 7 : + ]
TB-U, TB-V,
TB-W
Connect to the
compressor (MC)
Voltage among
phases:
10V-400V AC
TB-L1, TB-L2, TB-L3
Connect to the
outdoor noise filter
circuit board
(LO1, LO2, LO3)
380V-415V AC
TB-N1
Connect to the
smoothing capacitor
–
CB2
POWER
MODULE
}
565V DC