Introduction to the manual 25
Terms and abbreviations
Term/abbreviation Explanation
ACS-CP-A Assistant control panel, advanced operator keypad for communication
with the drive
ACS-CP-C Basic control panel, basic operator keypad for communication with the
drive
ACS-CP-D Assistant control panel for Asian languages, advanced operator keypad
for communication with the drive
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 a certain maximum limit. The voltage rise is
typically caused by deceleration (braking) of a high inertia motor.
Brake resistor Dissipates the drive surplus braking energy conducted by the brake
chopper to heat. Essential part of the brake circuit. See Brake chopper.
Capacitor bank See DC link capacitors.
Control board Circuit board in which the control program runs.
CRC Cyclic redundancy check
DC link DC circuit between rectifier and inverter
DC link capacitors Energy storage which stabilizes the intermediate circuit DC voltage.
DCU Drive control unit
Drive Frequency converter for controlling AC motors
EMC Electromagnetic compatibility
EFB Embedded fieldbus
ESP Enhanced Sequence Program
FBA Fieldbus adapter
FCAN Optional CANopen adapter module
FDNA Optional DeviceNet adapter module
FECA Optional EtherCAT adapter module
FENA Optional Ethernet adapter module for EtherNet/IP, Modbus TCP and
PROFINET IO protocols
FLON Optional L
ONWORKS® adapter module
FMBA Optional Modbus RTU adapter module
FPBA Optional PROFIBUS DP adapter module
Frame (size) Refers to drive physical size, for example R1 and R2. To determine the
frame size of a drive, refer to the rating table in chapter Technical data
on page 373.
FRSA RSA-485 adapter board
I/O Input/Output
ID run Identification run
IGBT Insulated gate bipolar transistor
Intermediate circuit See DC link.
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