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Hitachi RAS-(4-6)HVRNS2E - Page 410

Hitachi RAS-(4-6)HVRNS2E
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10 Servicing
400
SMGB0064 rev.0 - 08/2011
Removing other electrical components
1 Remove the service cover according to the section Removing service cover, see on page 385 in this chapter.
2 Open the P-mounting plate by rotating it 90 degrees to the left according to the section Opening electrical box (P-
mounting plate), see on page 393 in this chapter.
3 Check to ensure the LED201 (Red) of the inverter PCB is off when opening P-mounting plate.
4 Remove other electrical components according to the procedure below and the gures on Chapter 10.
D A N G E R
Check that the LED201 (red) located on the “W” surface PCB is OFF when opening the P-mounting plate.
Do not touch the electrical components when LED201 (Red) located on the “W” surface PCB is ON in order to
avoid an electrical shock.
N O T E
Disconnect all the wires connected with the smoothing capacitor (CB CB1 CB2 CA).
The wire has polar characters. Identify the wire mark band and the indication on the smoothing capacitor when
wire connecting.
Remove the two (2) screws xing the smoothing capacitor and remove the smoothing capacitor.
Disconnect all the wires connecting with the magnetic contactor (CMC1).
Remove the two (2) screws xing the magnetic contactor and remove the magnetic contactor.
Remove the four (4) screws xing the reactor and remove the reactor (DCL).
Disconnect all the wires connected with the noise lter (NF1).
Remove the noise lter by clamping the top of the holder (6 portions) with a pincher.
Identify the terminal numbers with mark band. When reassembling the terminals have to be connected to the
correct numbers . If incorrectly connected malfunctions or damages will occur.

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