10.2.13 DC Bus Rails
To remove or reinstall the DC bus rails, use the following
steps. Refer to Illustration 10.9.
Disassembly
1. Remove the power card mounting plate. Refer to
chapter 10.2.3 Power Card Mounting Plate.
2. Remove the power terminal mounting plate. Refer
to chapter 10.2.9 Power Terminal Mounting Plate.
3. If there is a brake option, to remove the 2 brake-
to-DC link busbars:
3a Remove 2 screws (T30), 1 per busbar.
3b Remove 2 nuts (10 mm), 1 per busbar.
4. Remove 2 screws (T30) at the top end of the DC
bus rails, 1 per bus rail.
5. Remove 2 nuts (10 mm) from the lower end of
the DC bus rails, 1 per bus rail.
6. Lift the DC bus rails from the drive.
Reassembly
Tighten hardware according to chapter 14.1 Fastener Torque
Ratings.
1. Position the DC bus rails in the drive.
2. Secure 2 nuts (10 mm) at the lower end of the
DC bus rails, 1 per bus rail.
3. Fasten 2 screws (T30) at the top end of the DC
bus rails, 1 per bus rail.
4. If there is a brake option, to replace the 2 brake-
to-DC link busbars:
4a Fasten 2 screws (T30), 1 per busbar.
4b Fasten 2 nuts (10 mm), 1 per busbar.
5. Replace the power terminal mounting plate. Refer
to chapter 10.2.9 Power Terminal Mounting Plate.
6. Replace the power card mounting plate. Refer to
chapter 10.2.3 Power Card Mounting Plate.
D1h/D3h/D5h/D6h/J8 Drive Di... Service Guide
MG94A502 Danfoss A/S © 02/2019 All rights reserved. 147
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