Introduction to the manual 21
Terms and abbreviations
Term/Abbreviation Description
BCON Type of a control board
BCU Type of a control unit (contains BCON)
BDFC DOL fan control board. For more information, see the diagram in Module fiber
optic connectors.
BDPS Type of the module internal power supply board. BDPS board is a double fed
(AC/DC) power supply, which internally powers up the circuit boards of the
module. The board switches between AC and DC supply automatically. The
board switches from external AC supply to internal DC supply always when the
DC voltage level is above 300 V DC.
BFPS Type of a power supply and control board for the speed-controlled cooling fans
of the modules. The BFPS board is located below the module cooling fan. For
more information, see the diagram in Module fiber optic connectors.
Brake chopper 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.
Control board Circuit board in which the control program runs.
Control unit Control board built in a rail-mountable housing
Cubicle One section of a cabinet-installed drive. A cubicle is typically behind a door of
its own.
CVAR Varistor board (for UL/CSA installations)
DC link DC circuit between rectifier and inverter
DDCS Distributed drives communication system; a protocol used in optical fiber
communication
DI Digital input
DPMP Optional mounting platform for door mounting of control panel
Drive Frequency converter for controlling AC motors
DxT Diode supply module with half-controlled diode-thyristor bridge. Indicated with
plus code +A018. See also Frame (size).
EMC Electromagnetic compatibility
FCAN-01 Optional CANopen® adapter module
FCNA-01 Optional ControlNet™ adapter module
FDCO-01 Optional DDCS communication module
FDNA-01 Optional DeviceNet™ adapter module
FDPI-02 Diagnostics and panel interface
FEA-03 Optional option module extension adapter
FECA-01 Optional EtherCAT® adapter module
FENA-11 Optional EtherNet/IP™, Modbus TCP® and PROFINET IO® adapter module
FENA-21 Optional high-performance EtherNet/IP, Modbus TCP and PROFINET IO
adapter module, 2-port (check availability with your local ABB representative)
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