Layout; Frames R0 - ABB ACS560 Hardware Manual

24 Operation principle and hardware description
The figure below shows the simplified main circuit diagram of the drive.
ACS560
1
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.
4 Built-in brake chopper (R-, R+/UDC-, UDC+) in frames R0...R2 and (R-, R+/UDC+) in frame R3.
Conducts the surplus energy from the intermediate DC circuit of the drive to the brake resistor when
necessary. The chopper operates when the DC link voltage exceeds a certain maximum limit. The
voltage rise is typically caused by deceleration (braking) of a high inertia motor. The user obtains
and installs the brake resistor when needed.
5 DC connection (UDC+, UDC-), for an external brake chopper in frames R4...R8.

Layout

￭ Frames R0...R2
The layout of a frame R0 drive is presented below. The frame sizes R1...R2 is similar to
R0 but have a different structure.
2
4
R- UDC+ UDC-
R+
2
3
5
3
T1/U
T2/V
T3/W
T1/U
T2/V
T3/W