Danfoss VLT FC Series Service Manual page 317

E1h–E4h Drive Disassembly a...
Disassembly in E2h/E4h drives
For E2h/E4h drives, refer to Illustration 13.33.
1. Remove the input plate. Refer to
chapter 13.2.9 Input Plate with Busbars and
chapter 13.2.10 Split Input Plate with Options.
2. Remove the vertical brake busbars. Refer to
chapter 13.2.25 Vertical Brake Busbars.
3. Remove 4 screws (T40), 2 from each snubber
capacitor. Remove the capacitors from the drive.
4. Remove 2 thread-forming screws (T25) from the
bottom horizontal busbar. Lift the busbar from
the drive.
5. Remove 4 screws (T40) from the middle
horizontal busbar. Remove the busbar from the
drive.
6. Remove the top horizontal busbar by removing:
6a 2 thread-forming screws (T25).
6b 2 nuts (13 mm) from the right end of
the busbar.
MG94A502
Service Guide
Reassembly in E2h/E4h drives
Tighten fasteners according to chapter 14.1 Fastener Torque
Ratings.
1.
2.
3.
4.
5.
6.
Danfoss A/S © 02/2019 All rights reserved.
Position the top horizontal busbar in the drive,
and replace the following fasteners:
1a 2 thread-forming screws (T25).
1b 2 nuts (13 mm) in the right end of the
busbar.
Position the middle horizontal busbar in the
drive. Secure 4 screws (T40).
Position the bottom horizontal busbar in the
drive. Secure 2 thread-forming screws (T25).
Position 2 snubber capacitors in the drive. Fasten
4 screws (T40), 2 in each snubber capacitor.
Replace the vertical brake busbars. Refer to
chapter 13.2.25 Vertical Brake Busbars.
Replace the input plate. Refer to
chapter 13.2.9 Input Plate with Busbars and
chapter 13.2.10 Split Input Plate with Options.
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