Block Diagram Of The Main Circuit Of The Drive Module; Line-Side Converter - ABB ACQ580-34 Hardware Manual

26 Operation principle and hardware description
￭

Block diagram of the main circuit of the drive module

A
PE
L1/U1
L2/V1
L3/W1
A ACQ580-34 drive module
1 Charging circuit contactor
2 Charging circuit
3 Line contactor
4 LCL filter
5

Line-side converter

6 DC link. DC circuit between the line-side converter and motor-side converter
7 Motor-side converter
8 Common mode filter (+E208)
￭ Line-side converter
The line-side converter rectifies three-phase AC current to direct current for the intermediate
DC link of the drive.
The following figure shows the simplified main circuit diagram of the line-side converter.
The line-side converter is controlled by a type ZCU control unit.
1
2
3 4 5
7
6
UDC- UDC+
T1/U2
T2/V2
T3/W2
8