Danfoss iC7 Series Installationshandbuch - Seite 6

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Danfoss iC7 Series Installationshandbuch
SCR/Diode Module Replacement for Fx09-Fx12/D1h–D8h/E1h–E4h
Installation Guide
1
3
4
Illustration 2: SCR/Diode Module Fastener Tightening Sequences
Table 7: Torque Tightening Values and Sequence
Kit number
Mounting torque [Nm (in-lb)]
176F3426
6.0 (53)
176F3859
5.0 (44)
176F3860
6.0 (53)
176F3890
6.0 (53)
176F3934
5.5 (49)
176F4099
5.5 (49)
176F6647
5.5 (49)
176F6648
5.5 (49)
176F8318
2.5 (22)
176F8320
5.8 (51)
176F8529
2.5 (22)
176F8530
5.8 (51)
2.3 Installing the SCR/Diode Module Busbars
SCR/diode module conversion kits contain 3 SCRs plus new busbars. Use the following steps to install the busbars. See
Procedure
1.
Position the 3 SCR input busbars in the frequency converter, 1 on each SCR/diode module.
2.
Fasten 3 standoffs (19 mm), 1 in each SCR/diode module connecting it to the busbar.
3.
Fasten 3 M10 screws (T50) in the SCR-to-DC(-) busbar, connecting it to the 3 SCR/diode modules.
4.
Fasten 3 M10 screws (T50) in the SCR-to-DC(+) busbar, connecting it to the 3 SCR/diode modules.
5.
Position the DC(-) busbar behind the SCR-to-DC(-) busbar and fasten 1 screw connecting the busbars.
6 | Danfoss A/S © 2022.07
2
A
1
2
C
Busbar connection torque [Nm (in-lb)]
12.0 (106)
9.0 (80)
12.0 (106)
12.0 (106)
11.0 (97)
11.0 (97)
11.0 (97)
11.0 (97)
5.0 (44)
12.0 (106)
5.0 (44)
12.0 (106)
3
4
B
3
4
D
AN334838812834en-000201 / 130R0771
Installation
1
2
1
2
Tightening order
Diagram
1-2-3-4
B
1-2-3-4
C
1-2-3-4
C
1-2-3-4
C
1-2-3-4
D
1-2-3-4
D
1-2-3-4
D
1-2-3-4
D
1-2
A
1-2-3-4
B
1-2
A
1-2-3-4
B
Illustration
3.