ABB ACS800-04M - Main Circuit and Control Interfaces; Diagram; Operation

Operation principle and hardware description 29
Main circuit and control interfaces
 Diagram
This diagram shows the control interfaces and the main circuit of the drive.
 Operation
This table describes the operation of the main circuit in brief.
Component Description
Six-pulse rectifier Converts the three-phase AC voltage to DC voltage
Capacitor bank Energy storage which stabilizes the intermediate circuit DC voltage
Six-pulse IGBT
inverter
Converts the DC voltage to AC voltage and vice versa. The motor operation
is controlled by switching the IGBTs.
Motor
control
and I/O
board
(RMIO)
External control
via
analogue/digital
inputs and
Input power
Output power
R- UDC+ UDC-
R+
Optional module 1: RMBA, RAIO, RDIO,
RDNA, RLON, RIBA, RPBA, RCAN, RCNA,
RMBP, RETA, RRIA or RTAC
Optional module 2: RTAC, RAIO, RRIA
or RDIO
DDCS communication option module:
RDCO-01, RDCO-02 or RDCO-03
Brake chopper (optional)