63
OCH671
Outdoor power circuit board
Brief Check of POWER MODULE
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 DIODE MODULE
L1 - P1 , L2 - P1 , L3 - P1 , L1 - N1 , L2 - N1 , L3 - N1
2. Check of DIP-IPM
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 are not actually printed on the board.
PUHZ-SP100YKA.TH
PUHZ-SP125YKA.TH
PUHZ-SP140YKA.TH
CN5
Detection of primary current (Connect
to the outdoor noise filter circuit board
(CNCT))
CN4
Connect to the
outdoor controller
circuit board (CN4)
CN2 Connect to the outdoor
controller circuit board (CN2)
1
-
5
: Power circuit board
→
Transmitting signal to the
controller board (0-5 V DC)
2
-
5
: Zero cross signal (0-5 V DC)
3
-
4
: Not used
6
-
5
: 16 V DC
7
-
5
: 16 V DC
[
5
: –
1
,
2
,
6
,
7
: + ]
Diode module
DIP-IPM
TAB connector
on X52CA
Connect to the RS resistor
TB-L1,TB-L2,TB-L3
Connect to the outdoor
noise filter board (L1-OU,
L2-OU, L3-OU)
400 V AC
L3OUT-L3IN
Lead connect
TB-P1
Connect
to DCL
CN6
Thermistor <Heat sink> (TH8)
W
V
P2
U
P1
L1
L2
L3
N1
N2
TB-U, TB-V, TB-W
Connect to the compressor (MC)
Voltage among phases:
10 V- 400 V AC
TB-P3
Connect to DCL