8.2.2 Internal Access
1.
Remove inverter module from frequency
converter in accordance with instruction in
section
Inverter Module
.
2.
Remove right side panel from inverter module by
removing four nuts (10 mm). Note for reassembly
2 studs on panel edge. This side mounts to front
of unit for reassembly.
8.2.3 Power Card
1.
Unplug cables from all power card connectors:
MK112, MK109, MK106, FK103, MK107, MK105,
MK104, MK102, and MK110.
2.
Remove power card by removing seven screws
(T25) and detach plastic standoff at top right
corner of power card.
Reinstall in reverse order of this procedure. Tighten
mounting screws to 2.3 Nm (20 in-lbs).
8.2.4 Upper Capacitor Bank Assembly
(without removing power card)
NOTE: The power card may remain attached to the
capacitor bank cover during removal. If desired, remove
the power card in accordance with instructions provided.
See exploded view illustration for further detail.
1.
Disconnect cables from MK109 and MK105 on
power card.
2.
Disconnect cable from MK107 on power card.
3.
Remove two red wires from 15 A fuse block
attached to cover plate flange.
4.
Free cable entirely with the 2 red wires attached
to it by disconnecting 10-pin connector next to
fuse block on cover plate flange.
5.
Disconnect 2 white wires from 4 A fuse block
attached to cover plate flange and free cable by
disconnecting 6-pin connector on opposite end
of cable.
6.
Remove MK102 from power card and ground lug.
Power card may now remain fastened to cap
bank assembly.
7.
Remove six electrical connection nuts (8 mm)
securing capacitor bank assembly. These nuts are
recessed in the gap between the upper and
lower capacitor banks.
8.
Remove four retaining nuts (10 mm) securing cap
bank assembly.
9.
NOTE: Capacitor bank assembly may weigh up to
9 kg (20 lbs). Remove capacitor bank assembly.
Reassembly is done in reverse order.
1
2
3
3
4
4
5
6
130BX274.10
1
Upper capacitor bank assembly
2
Inverter power card
3
10 mm retaining nut (step 8)
4
8 mm electrical connection nut (step 7)
5
Lower capacitor bank assembly
6
IGBT gate driver card
Disassembly/Assembly - Inve...
High Power Service Manual for Modular F Frame Drives
MG90K202 - VLT
®
is a registered Danfoss trademark
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