ABB ACS880-07 - Page 37

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Cabinet layout example
Auxiliary control cubicle (ACU). See section Auxiliary control cubicle (ACU) layout (page 42).A
Input cable lead-throughs, PE busbar1
Input terminals2
Main switch-disconnector (Q1.1)3
AC fuses4
Main contactors (Q2.1 and Q2.2) (optional)5
Auxiliary voltage switch (Q21) with fuses6
Incoming cubicle cooling fans7
Supply modules. Each module is connected to a different 6-pulse supply line.8
Inverter DC fuses9
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).
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Operation principle and hardware description 37