ABB ACS380 - Simplified Main Circuit Diagram; Product Variants Overview

￭ Simplified main circuit diagram
R-
L1
L2
L3
T1/U
T2/V
T3/W
R+
UDC+ UDC-
1
2
3
4
5
Rectifier. Converts alternating current and voltage to direct current and voltage.1
DC link. DC circuit between rectifier and inverter.2
Inverter. Converts direct current and voltage to alternating current and voltage.3
Brake chopper. Conducts energy from the intermediate DC circuit of the drive to the brake
resistor when it is necessary and if an external brake resistor is connected to the drive. The
chopper operates when the DC link voltage exceeds a certain maximum limit. The voltage
rise is typically caused by deceleration (braking) of a motor. The user obtains and installs
the brake resistor when necessary.
4
DC connection (UDC+, UDC-).5
Product variants
The drive has three primary product variants:
• Standard variant (ACS380-04xS) with BMIO-01 I/O & Modbus extension module
• Configured variant (ACS380-04xC) for which the extension module, such as the
fieldbus adapter, is chosen when ordering
• Base variant (ACS380-04xN) without extension modules.
30 Operation principle and hardware description