Danfoss iC7 Series, Installation Manual

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7. Tighten the busbar connection terminals to the torque value listed in Table 7 and Table 8 .
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