Danfoss 176F6516 Installation Manual page 8

300 A Current Sensor Kit for D1h/D3h/D5h/D6h Drives
Installation Guide
1 Current sensor
2 Thread-cutting screw (T20)
3 Power terminal mounting plate
2.7 Removing the IGBT Output Busbars
To remove the IGBT output busbars, use the following steps.
Procedure
1.
Remove the control card mounting plate:
- a. Disconnect the customer control wiring.
b.
- Remove 4 screws (T20) from the corners of the control card mounting plate.
- c. Lift the control card mounting plate from the drive, and unplug the ribbon cable connecting the control card and
power card.
2. Remove the power card mounting plate:
a.
- Disconnect all cables from the power card, and free the cables from the cable clips on the mounting plate.
- b. Remove 4 screws (T20) from the corners of the mounting plate.
c.
- Remove 1 screw (T25) from the top center of the mounting plate.
3. Remove the DC bus rails:
a.
- Remove 2 nuts (10 mm) from the lower end of the DC bus rails, 1 per bus rail.
- b. Remove 2 screws (T30) from the top end of the DC bus rails, 1 per bus rail.
4.
Remove the gate drive card:
- a. Disconnect all cables on the gate drive card.
b.
- Unfasten 6 thread-forming screws (T20) from the edges of the card.
5. Remove the cylinder busbar support bracket:
a.
- Unfasten 3 M6 screws (T30) from the cylinder busbar support bracket.
- b. Remove the bracket from the drive, and discard it.
6.
Remove the 3 IGBT output busbars:
- a. Remove 3 thread-forming screws (T25), 1 from the top of each IGBT output busbar.
b.
- Remove 6 screws (T30), 2 from the top of each busbar.
Discard the IGBT output busbars.
8 | Danfoss A/S © 2022.11
4 Mixing fan cable
5 Mixing fan
6 Mixing fan slot
AN275538690239en-000101 / 130R0721
Disassembly