Main Circuit And Control Interfaces - ABB ACS800 Cabinet Installation And Operating Instruction

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Main circuit and control interfaces

This diagram shows the control interfaces and the main circuit of the drive.
External control via
analogue/digital
inputs and outputs
AC supply
The ACS800-04/U4 and ACS800-04M
Motor
control and
I/O board
(RMIO)
Drive
Capacitor bank
Rectifier
U1
V1
W1
Brake chopper
(optional)
R- UDC+ UDC-
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
Inverter
U2
V2
W2
R+
Motor output