A-24
Application Manual CDA3000
Appendix C Glossary
Asynchronous
motor
Also termed IEC standard motor, squirrel-cage rotor
or cage motor. Three-phase a.c. motor which does
not run synchronous with the stator speed. The
rotor is composed of several rods which are shorted
at the ends by rings. The energy transfer from the
stator to the rotor is inductive (without brushes or
slip rings). Very robust and low-cost.
Attenuation
choke
Choke between the output of the inverter module
and the motor, to reduce noise. Noise occurs in the
motor due to high-frequency components of the cur-
rent and voltage of an inverter.
Axial (Latin noun: axis)
In the direction of the axis
Basic range Speed range below the rated speed of a three-
phase a.c. motor in which the stator voltage and the
frequency are changed proportionally.
Baud Jean Baudot; measurement unit in bps (bits per
second) for the speed of data transmission.
Bootstrap Mode in which a new software release can be trans-
ferredtoadevice.Ifthereisasoftwareprogramin
thedevice,thedevicecanbeswitchedtoBootstrap
mode without pressing the Bootstrap button.
Braking chopper If the DC-link voltage of the inverter becomes too
high, switches a resistor parallel to the DC-link to
convert the energy fed back by the machine into
heat.
Burst immunity Resistance to short-time electromagnetic interfer-
ence signals with steep rising edges
CANLust (CAN = Controller Area Network); Networking con-
cept based on the CAN bus system according to the
CiA (CAN in Automation) standards, but with Lust-
specific communication identifiers, oriented to the
CAL (CAN Application Layer) protocol
CANopen (CAN = Controller Area Network); CANopen bus
system according to the CiA (CAN in Automation)
standards, based on the networking concept of the
CAN serial bus system
CDS Characteristic data set; subsidiary data set within a
user data set of the typical parameters for adapta-
tion of the motor characteristic and of the controller
and open-loop control properties.
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