13.2.7 Inrush Card Frame and Rectifier Bus Plates
To remove or reinstall the inrush card frame and the
rectifier bus plates, use the following steps. Refer to
.
Disassembly
1.
Remove the inrush card. Refer to
2.
Remove 3 nuts (7 mm), 1 from each inrush
busbar, and remove the busbars.
3.
Remove 4 nuts (7 mm) from the plastic inrush
card frame, and remove the frame.
4.
Remove 4 screws (T40), 1 from each SCR module
and 1 from the DC coil. The screw in the DC coil
is a smaller diameter.
5.
If load share/regen option is present, remove 2
additional screws (T40). See
.
6.
Remove the rectifier(-) bus plate from the drive.
7.
Remove the insulator sheet.
8.
Remove 4 screws (T40), 1 from each SCR module
and 1 from the DC coil. Remove the rec)
bus plate from the drive.
Reassembly
Tighten fasteners according to
.
1.
Place the rec) bus plate in its original
position. Secure with 4 screws (T40), placing the
smaller screw at the top of the bus plate.
2.
Place the insulator sheet on the bus plate
alignment pins.
3.
Place the rectifier(-) bus plate in its original
position. Secure with 4 screws (T40), placing the
smaller screw at the top of the bus plate.
4.
If load share/regen option is present, secure 2
additional screws (T40). See
5.
Replace the plastic inrush card frame, and secure
the frame with 4 nuts (7 mm).
6.
Replace the 3 inrush busbars. Secure with 3 nuts
(7 mm), 1 in each busbar.
7.
Reinstall the inrush card.
E1h–E4h Drive Disassembly a...
Service Guide
MG94A502
Danfoss A/S © 02/2019 All rights reserved.
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Содержание VLT FC Series
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