7.6.2 Replacing the Heatsink Fan with
Options Cabinet Present
2
1
3
130BB810.10
Figure 7.28 D8h Options Cabinet, Exploded View
1 Options cabinet to wall fastener
2 Options cabinet to adjustable frequency drive fastener
3 Heatsink fan access panel
Table 7.28 Legend to
1.
Remove the air baffle covering the interior
components.
2.
Remove the EMC shield by removing two screws
(T25).
3.
Remove the brake jumper bus bars between the
main enclosure and the options cabinet by
removing two nuts (0.3 in [8 mm]) that attach the
bus bars to the standoffs, one per bus bar.
4.
Remove two nuts (0.7 in [17 mm]) from the
bottom end of the bus bars, one per bus bar.
5.
Remove two screws (0.7 in [17 mm]) from the top
end of the bus bars, one per bus bar.
6.
Remove the three output jumper bus bars
between the main enclosure and the options
cabinet by removing three screws (0.7 in [17
mm]) from the top of the bus bars, one per bus
bar.
7.
Remove three nuts (0.7 in [17 mm]) at the
bottom of the bus bars, one per bus bar.
8.
Remove the input jumper bus bars between the
main enclosure and the options cabinet by
removing three screws (0.7 in [17 mm]) from the
tops of the bus bars, one per bus bar.
9.
Remove three screws (0.7 in [17 mm]) from the
bottom of the input bus bars, one per bus bar.
10.
Remove the fan access panel by removing six
nuts (0.3 in [8 mm]) from the bottom of the
panel.
11.
Remove the fan in accordance with
Reinstall in reverse order of this procedure and tighten
hardware according to
.
7.6.3 Removing the Adjustable Frequency
Drive from the Options Cabinet
NOTICE!
When removing the fasteners from the top flange,
remove only the center two, which hold the adjustable
frequency drive and options cabinet together. The outer
fasteners continue to support the options cabinet after
the adjustable frequency drive has been removed.
1.
Remove the input, output and brake (if present)
bus bars in accordance with
chapter 7.6.2 Replacing the Heatsink Fan with
Options Cabinet Present
2.
Remove the ground bracket by removing two
nuts (0.7 in [17 mm]) from the ground studs on
the left side of the plate, one screw (T25) from
the center, and two nuts (0.3 in [8 mm]) from the
bottom.
3.
Remove six nuts (0.3 in [8 mm]) inside the option
cabinet on the bottom of the three brackets
between the option cabinet and the main
enclosure.
4.
Remove two connector plates on the top of the
adjustable frequency drive by removing eight
screws (T25), four from each plate.
5.
Lift the adjustable frequency drive away from the
options cabinet.
Disassembly and Assembly In...
Service Manual
MG94A222
Danfoss A/S © Rev. 2014-02-10 All rights reserved.
117
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7
Summary of Contents for VLT FC 103
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