ABB ACS880-604LC, Hardware Manual

Page: 11 / 104

Terms and abbreviations
Description Term
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 chopper
Brake chopper enclosed in a metal frame or housing. Intended for cabinet installation. Brake chopper module
Dissipates the drive surplus braking energy conducted by the brake chopper to heat Brake resistor
Brake chopper modules under control of one control board, and related accessories Brake unit
One section of a cabinet-installed drive. A cubicle is typically behind a door of its own. Cubicle
DC circuit between rectifier and inverter DC link
Frequency converter for controlling AC motors Drive
Electromagnetic compatibility EMC
Insulated gate bipolar transistor IGBT
DC circuit between rectifier and inverter Intermediate circuit
Converts direct current and voltage to alternating current and voltage. Inverter
Drive for controlling several motors which are typically coupled to the same machinery.
Includes one supply unit, and one or several inverter units. Multidrive
Brake chopper control board NBRC
Series of optional, liquid-cooled brake chopper modules NBRW
In the drive control program, user-adjustable operation instruction to the drive, or signal
measured or calculated by the drive.
In some (for example fieldbus) contexts, a value that can be accessed as an object,
eg, variable, constant, or signal. Parameter
Converts alternating current and voltage to direct current and voltage Rectifier
Series of brake resistors SAFUR
Introduction to the manual 11