Terms And Abbreviations - ABB ACS880-104 Hardware Manual

Terms and abbreviations

Term/abbreviation
BCON
BCU
BDPS
BFPS
Brake chopper
CMF
Cubicle
DC link
DC link capacitors
DC switch/disconnector
DDCS
DPMP
Drive
EFB
EMC
EMI
FAIO
FBA
FCAN
FCNA
FDCO
FDNA
FDPI
FECA
Explanation
Type of control board. See BCU.
Type of control unit.
The BCU is used to control inverter units of frame sizes R8i and up. It is
connected to the inverter modules using fiber optic cables.
The external I/O control signals of the inverter unit are mostly connected to the
BCU, or optional I/O extensions mounted onto it.
See also ZCON and ZCU.
Internal power supply board in frame R8i modules. The BDPS is a double-fed
(AC/DC) power supply which internally powers the circuit boards of the
module. The board switches between the AC (connector X50) and DC (main
DC terminals) supplies automatically. The board switches from AC to DC
always when the DC voltage is above 300 V.
Type of a power supply and control board for the speed-controlled cooling fan
in frame R8i modules. The BFPS is located in the fan control box below the
main cooling fan of the module.
Conducts the surplus energy from the intermediate circuit of the drive to the
brake resistor when necessary. The chopper operates when the DC link
voltage exceeds certain maximum limit. The voltage rise is typically caused by
deceleration (braking) of a high inertia motor.
Common mode filtering
One section of a cabinet-installed drive. A cubicle is typically behind a door of
its own.
DC circuit between supply unit and inverter unit(s)
Energy storage which stabilizes the intermediate circuit DC voltage. Contained
within the inverter module.
Main switch and disconnecting device for an inverter unit. See
Distributed drives communication system; a protocol used in optical fiber
communication
Optional mounting platform for door mounting of control panel
Frequency converter for controlling AC motors
Embedded fieldbus
Electromagnetic compatibility
Electromagnetic interference
Optional analog I/O extension module
Fieldbus adapter
Optional CANopen adapter module
Optional ControlNet adapter module
Optional DDCS communication module
Optional DeviceNet adapter module
Optional diagnostics and panel interface
Optional EtherCAT adapter module
Introduction 19
Inverter unit.