ABB ACS800-67LC, Hardware Manual

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Introduction to the manual 21
Incoming cubicle
(ICU) Cubicle with input power terminals, main switching and disconnecting devices, etc.
See
Cubicle .
Inverter Converts direct current and voltage to alternating current and voltage.
Inverter module Inverter bridge, related components and converter DC link capacitors enclosed
inside a metal frame or enclosure. Intended for cabinet installation.
Inverter module
cubicle Cubicle which includes inverter module(s). See Inverter module , Cubicle .
Inverter unit (INU) Rotor-side converter unit. Consists of the converter module and the related
accessories (such as fuses, switches, control unit, etc.) See
Inverter module .
Intermediate circuit See DC link .
LCU Liquid cooling unit
LCL Grid-side filter that suppresses voltage distortion and current harmonics. Essential
part of the grid-side converter.
Main circuit breaker
(MCB) Electrically-controlled main switching and protecting device. Also used as the main
disconnector.
NAMU Auxiliary Measuring Unit. Performs voltage measurement for IGBT supply unit
RMIO board.
NCAN CANopen® Adapter Module
NDCU Drive Control Unit. Consists of a AMC board and NIOC board built into a metal
housing. NDCU unit controls the rotor-side converter.
NDNA DeviceNet™ Adapter Module
NETA Ethernet Adapter Module
NIBA Interbus-S® Adapter Module
NIOC Input/Output Board. Part of the NDCU Drive Control unit
NPBA PROFIBUS DP® Adapter Module
NTAC Pulse Encoder Interface Module
NUIM Voltage and Current Measurement Unit. Performs voltage and current
measurement for AMC board.
PPCS Power Plate Communication System. Communication protocol used with optic fiber
link which controls the power stage of the converter modules.
RAIO Analog I/O Extension Module
RDCO DDCS Communication Option with optic fiber channels
RDCU Drive Control Unit which contains an RMIO (Motor Control and I/O) board. An
RDCU unit controls the grid-side converter.
RFI Radio Frequency Interference
RMIO Motor Control and I/O Board. Part of the RDCU Drive Control Unit
Rotor-side converter A converter that is connected to the generator rotor and controls its operation. The
rotor-side converter is also called the inverter unit or INU.
UPS Uninterruptible power supply
Term/Abbreviation Explanation