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(ii) Micro inverter series
1) Model FDC100VN, 125VN, 140VN
a)
Replace the PCB after elapsing 3 minutes from power OFF.
(Be sure to measure voltage (DC) on both capacitor terminals located in controller back, and check that the
voltage is discharged sufficiently.(Refer to Fig.1))
b)
Disconnect the connectors from the control PCB.
c)
Disconnect the white wiring passing through CT1 on the PCB before replacing the PCB.
d)
Match the setting switches (SW3-5,JSW) with the former PCB.
e)
Tighten up a screw after passing white wiring through CT1 of the changed.
f)
Connect the connectors to the control PCB.(Confirm the connectors are not half inserted.)
CNW
CNA2
CT1
CNW2
CNI3
CNI1
SW4
SW3
CNEEV2
CNEEV1
Parts No.
Parts arrangement view
CNB
CNTH
CNIP
connectors are not half
inserted
-
CNH
after elapsing 3 minutes
from power OFF
CNS
CNR
CNA1
CNFAN1
JSW
SW5
CNPS
Fig.1 Position of capacitor
129
-
'11 • PAC-T-160
PCA012D024B
Voltage measurement parts
C
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Troubleshooting
