Mitsubishi Electric FDF100VSXVD Technical Manual page 134

2) Model FDC100VNX, 125VNX, 140VNX
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
voltage is discharged sufficiently.(Refer to Fig.1))
b) Tak e off the connection of inv e rter PCB terminal block connector and remov e the screw of power transistor then
c) Match the setting switches (JSW10 , 11) of new PCB with the former PCB.
surface of power transistor.Mak e sure it is applied to prev e nt damage on power transistor.
e) Tighten the screw of power transistor on inv e rter PCB and connect the terminal block . Confirm the connection
and don' t use soldering in the connection.Tighten properly the power transistor with a screw and mak e sure there
is no slack . Power transistor can be damage if not properly tighten.(Recommended power transistor tightening
torq u e: 0 . 9 8 ~ 1 .47N· m )
Terminal block
TB1
TB2
TB6
TB5
TB7
TB8
TB9
Parts arrangement view
Parts No.
PCA565A151-1
CNACT1
Table. 1 Switch setting
-1
-2
JSW10
-3
-4
Terminal block
TB10
TB11
Connector
CNI2
CNI4
Switch
JSW11
JSW10
Fig.1 Position of capacitor
OFF
OFF
JSW11
OFF
OFF
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'11 • PAC-T-160
PCA012D025D
check that the
Voltage measurement parts
-1 OFF
-2 OFF
-3 ON
-4 ON
F