Gate Drive Card; Brake Igbt Module - Danfoss VLT FC Series Service Manual

D1h/D3h/D5h/D6h/J8 Drive Di...

10.2.17 Gate Drive Card

To remove or reinstall the gate drive card, use the
following steps. Refer to Illustration 10.11.
Disassembly
1. Remove the DC bus rails. Refer to
chapter 10.2.13 DC Bus Rails.
2. Unplug the cables from the following gate drive
card connectors:
2a
2b
2d
2e
3. Remove 6 thread-forming screws (T20).
Reassembly
Tighten hardware according to chapter 14.1 Fastener Torque
Ratings.
1. Secure 6 thread-forming screws (T20) in the gate
drive card.
2. Attach the cables to the following gate drive card
10 10
connectors:
2a
2b
2d
2e
3. Replace the DC bus rails. Refer to
chapter 10.2.13 DC Bus Rails.
152
MK100
MK501
2c MK601
MK701
MK102
2f MK201 (if brake option is present)
MK100
MK501
2c MK601
MK701
MK102
2f MK201 (if brake option is present)
Danfoss A/S © 02/2019 All rights reserved.
®
VLT FC Series, D1h–D8h, Da2/Db2/Da4/Db4, E1h–E4h, J8/J9

10.2.18 Brake IGBT Module

To remove or reinstall the brake IGBT module, use the
following steps. Refer to Illustration 10.11.
Disassembly
1.
2.
3.
4.
5.
6.
7.
8.
9.
Reassembly
For reassembly, follow the replacement IGBT instructions.
Tighten hardware according to chapter 14.1 Fastener Torque
Ratings.
Remove the gate drive card. Refer to
chapter 10.2.17 Gate Drive Card.
Remove the mains input terminal block. Refer to
chapter 10.2.6 Mains Input Terminal Block.
Remove the motor terminal block. Refer to
chapter 10.2.7 Motor Terminal Block.
Remove 2 brake-to-DC link busbars. Refer to
chapter 10.2.13 DC Bus Rails.
Remove 2 thread-forming screws (T20) from the
top of the brake IGBT module.
Remove the brake snubber capacitor by removing
2 screws (T30), 1 from each busbar.
Remove 2 screws (T30) from the bottom of the
brake IGBT module.
Remove 1 thread-forming screw (T25).
Remove 4 screws (T25), 1 from each corner of the
IGBT module.
MG94A502