Terms And Abbreviations - ABB ACS880-87LC-4000A/4021A-7 Hardware Manual

26 Introduction to the manual

Terms and abbreviations

Term/abbreviation
Auxiliary voltage switch
Auxiliary control cubicle
(ACU)
BAMU
BCON
BCU
DC chopper
DC resistor
CCU
Control board
Control unit
Converter
Converter module
Cubicle
DC link
DC link capacitors
DDCS
DTC
EMC
FCAN
FCNA
FDNA
FEA
FECA
FEN-31
FENA
FIO-01
FIO-11
FPBA
Explanation
Main switch for the auxiliary voltage
The cubicle with auxiliary devices such as auxiliary voltage circuit breakers,
control electronics, measurement boards, etc.
Main voltage measurement board
Type of control board
Type of control unit, a BCON board in a metal housing. See
Protects the converter by cutting down a peak overvoltage in the converter DC
link: conducts the surplus energy from the intermediate circuit of the wind
turbine converter to the DC resistor when necessary. The chopper operates
when the DC link voltage exceeds a maximum limit. A sudden disturbance in
turbine operation or grid can cause the DC voltage rise.
Dissipates the surplus energy conducted by the DC chopper to heat. Essential
part of the chopper circuit. See
Control cubicle
Circuit board in which the control program runs. See BCON.
Control board built in a rail-mountable housing. See BCU.
Converts direct current and voltage to alternating current and voltage, or vice
versa.
Grid-side converter or generator-side converter module
One section of a cabinet-installed wind turbine converter. A cubicle is typically
behind a door of its own.
DC circuit between grid-side converter and generator-side converter
Energy storage which stabilizes the intermediate circuit DC voltage.
Distributed drives communication system; a protocol used in optical fiber
communication
Direct torque control; a generator control method by ABB.
Electromagnetic compatibility
Optional CANopen® adapter module
Optional ControlNet™ adapter module
Optional DeviceNet™ adapter module
Optional extension adapter module
Optional EtherCAT® adapter module
Optional HTL incremental encoder interface module
Optional Ethernet adapter module for EtherNet/IP™, Modbus TCP® and
PROFINET IO® protocols
Optional digital I/O extension module
Optional analog I/O extension module
Optional PROFIBUS DP® adapter module
DC chopper.
BCON.