ABB ACS880-37 Hardware Manual page 37

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A Auxiliary control cubicle (ACU). See page 38.
1 Input cable lead-throughs, PE busbar
2 Input terminals
3 Charging resistors
4 Incoming cubicle cooling fans (behind the charging resistor mounting plate)
5 Main breaker [Q1]
6 Charging switch [Q3]
7 Auxiliary voltage switch [Q21]
8 Grounding/earthing switch [Q9.1] (option +F259)
9 Charging contactor (behind auxiliary equipment)
10 AC fuses
11 LCL filter modules
12 Supply modules
13 DC fuses (at the output of each supply module and at the input of each inverter module)
14 Inverter modules. The output terminals are located behind each module. Each module must be
individually connected to the motor using separate cables unless the drive is equipped with
option +H359 (common motor terminal cubicle), +H366 (common output terminals) or +E206
(sine filters).
Operation principle and hardware description 37
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Cabinet layout example
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