7.
Tighten the busbar connection terminals to the torque value listed in
Example
1
2
3
4
5
6
7
8
9
10
1
2
3
4
e3
0b
f9
41
.1
0
A
B
Illustration 3: IGBT Fastener Tightening Sequence
Table 7: Torque Tightening Values and Sequence for iC7 Series Frequency Converters
Kit number
Mounting torque
[Nm (in-lb)]
Busbar connection
torque [Nm (in-lb)]
Diagram
Screw tightening order
176F3944
3.3 (29)
3.3 (29)
A
1-2-3-4
176F3945
3.3 (29)
3.3 (29)
A
1-2-3-4
176F3949
3.3 (29)
3.3 (29)
A
1-2-3-4
176F3943
4.5 (40)
9.0 (80)
B
1-2-3-4-5-6-7-8-9-10
176F4141
3.3 (29)
3.3 (29)
A
1-2-3-4
176F4143
4.5 (40)
9.0 (80)
B
1-2-3-4-5-6-7-8-9-10
176F3950
3.3 (29)
3.3 (29)
A
1-2-3-4
176F3956
4.5 (40)
9.0 (80)
B
1-2-3-4-5-6-7-8-9-10
AN361427984575en-000101 / 130R0770
6 | Danfoss A/S © 2022.03
Installation
IGBT Module Replacement for Fx09-Fx12 and E1h–E4h
Installation Guide