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14 Introduction to the manual
Terms and abbreviations
Term
BCON
BCU
BDPS
Brake chopper
Brake chopper module
Brake resistor
Brake unit
CIO
Control board
Control unit
Cubicle
DC link
Drive
EMC
Frame, frame size
Intermediate circuit
Inverter unit
Multidrive
Parameter
Supply unit
ZMU
Description
Type of control board
Type of control unit
Module internal power supply board
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 enclosed in a metal frame or housing. Intended for cabinet installation.
Dissipates the drive surplus braking energy conducted by the brake chopper to heat
Brake chopper modules and the necessary auxiliary equipment, such as control
electronics, fusing and cabling
I/O module for controlling cooling fans
Circuit board in which the control program runs
Control board built in a housing (often rail-mountable)
One section of a cabinet-installed drive. A cubicle is typically behind a door of its own.
DC circuit between rectifier and inverter
Frequency converter for controlling AC motors
Electromagnetic compatibility
Physical size of the drive or power module
DC circuit between rectifier and inverter
Inverter module(s) under control of one control unit, and related components. One
inverter unit typically controls one motor.
Drive for controlling several motors which are typically coupled to the same machinery.
Includes one supply unit, and one or several inverter units.
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.
Supply module(s) under control of one control unit, and related components.
Type of memory unit, attached to the control unit
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