Operation Principle - ABB ACS560 Hardware Manual

30 Operation principle and hardware description

Operation principle

The ACS560 is a drive for controlling asynchronous AC induction motors.
The figure below shows the simplified main circuit diagram of the drive.
ACS560
L1
L2
L3
1
L1
L2
L3
1 Rectifier. Converts alternating current and voltage to direct current and voltage.
2 DC link. DC circuit between rectifier and inverter.
3 Inverter. Converts direct current and voltage to alternating current and voltage.
1 2
4
R- UDC+ R+ UDC-
2
3
5
3
T1/U
T2/V
T3/W
T1/U
T2/V
T3/W