Danfoss VLT FC Series Service Manual page 243

D2h/D4h/D7h/D8h/J9 Unit Dis...
4. If the brake/regen option is present, remove the 2
brake jumper busbars between the main
enclosure and the extended options cabinet. See
Illustration 11.38:
4a Remove 2 nuts (8 mm) attaching the
brake jumper busbars to the standoffs, 1
per busbar.
4b Remove 2 nuts (17 mm) from the lower
end of the brake jumper busbars, 1 per
busbar.
4c Remove 2 screws (17 mm) from the top
end of the brake jumper busbars, 1 per
busbar.
1
2
3
4
5
1 Brake terminals
2 Screw (17 mm)
3 Brake jumper busbars
4 Nut (8 mm) for standoff
5 Nut (17 mm)
6 Motor busbars (V and W)
7 Standoff
Illustration 11.38 Brake/Regen Jumper Busbars in D7h/D8h
MG94A502
Service Guide
5.
6
7
1
2
1 Nut (8 mm)
2 Fan access panel
3 Screw (17 mm)
4 Motor output jumper busbars
5 Nut (13 mm)
Illustration 11.39 Motor Output Jumper Busbars in D7h/D8h
6.
7.
8.
Reassembly
Reinstall in reverse order of this procedure. Tighten
hardware according to chapter 14.1 Fastener Torque Ratings.
Danfoss A/S © 02/2019 All rights reserved.
Remove the 3 motor output jumper busbars
between the main enclosure and the extended
options cabinet. See Illustration 11.39:
5a Remove 3 nuts (17 mm) at the bottom
of the motor output busbars, 1 per
busbar.
5b Remove 3 screws (17 mm) from the top
of the motor output busbars, 1 per
busbar.
Access the heat sink fan cover by removing 6
nuts (8 mm) from the heat sink fan access panel.
Lift the heat sink fan access panel from the
extended options cabinet.
Remove the heat sink fan. Refer to
chapter 11.2.25 Heat Sink Fan.
3
4
5
11 11
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