Overview Diagram Of The Drive System - ABB ACS880-104 Hardware Manual

24 Hardware description

Overview diagram of the drive system

The diagram below depicts a common DC bus drive system.
1 – AC supply
2 – Input (AC) fuses
3 – Supply unit
4 – DC bus
5 – Inverter DC fuses (with or without a DC switch/disconnector)
6 – Inverter units (in this example, one of the two units consists of two inverter modules
connected in parallel)
7 – Brake chopper. Resistor(s) are not shown.
8 – Motor(s)
The supply unit connects to the AC supply network and converts the AC voltage into DC.
The DC voltage is distributed through the DC bus to all inverter units. The inverter unit,
consisting of one or more ACS880-104 inverter modules, converts the DC back to AC that
rotates the motor.
The ACS880-104 inverter modules can be used for controlling asynchronous AC induction
motors, permanent magnet synchronous motors, AC induction servomotors and ABB
synchronous reluctance (SynRM) motors.