Mitsubishi Heavy Industries MHI FDU71VNXVF1 Technical Manual page 282

(i) Model FDC100VN, 125VN, 140VN
FDC100VS, 125VS, 140VS
1) 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.)
2) Disconnect the connectors from the control PCB.
3) Disconnect the white wiring passing through CT1 on the PCB before replacing the PCB.
4) Match the setting switches (SW3-5,JSW) with the former PCB.
5) Tighten up a screw after passing white wiring through CT1 of the changed.
6) Connect the connectors to the control PCB.(Confirm the connectors are not half inserted.)
Connectors are not half
inserted
CNW
CNA2
CT1
CNW2
CNI3
CNI1
SW4
SW3
CNEEV2
CNEEV1
CNU
Parts No.
Parts Arrangement
SW(J5-7)
CNPS
CNTH
CNIP
CNB
CNH
CNM
CNF
CNS
CNN1
CNN2
CNR
CNA1
CNFAN1
JSW
CNFAN2
SW5
Voltage measurement point
281
- -
'12 • PAC-T-178
PCA012D043
After elapsing 3 minutes from
power OFF
Voltage measurement parts
(Pin terminals 1-2 of CNA1)
Ｃ
A