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Terms and Abbreviations
See chapter " Standards and terminology" for information on the perti-
nent standards on which many terms are based. Some terms and
abbreviations may have specific meanings with regard to the stand-
ards.
AC Alternating current
DC Direct current
DC bus Circuit that supplies the power stage with energy (direct voltage).
Drive system System consisting of controller, drive and motor.
EMC Electromagnetic compatibility
Error Discrepancy between a detected (computed, measured or signaled)
value or condition and the specified or theoretically correct value or
condition.
Error class Classification of errors into groups. The different error classes allow
for specific responses to errors, for example by severity.
Factory setting Factory settings when the product is shipped
Fault Fault is an operating state. If the monitoring functions detect an error,
a transition to this operating state is triggered, depending on the error
class. A "Fault Reset" is required to exit this operating state after the
cause of the detected error has been removed. Further information
can be found in the pertinent standards such as IEC 61800-7, ODVA
Common Industrial Protocol (CIP).
Fault Reset A function used to restore the drive to an operational state after a
detected error is cleared by removing the cause of the error so that
the error is no longer active.
Parameter Device data and values that can be read and set (to a certain extent)
by the user.
PELV Protective Extra Low Voltage, low voltage with isolation. For more
information: IEC 60364-4-41
Persistent Indicates whether the value of the parameter remains in the memory
after the device is switched off.
Power stage The power stage controls the motor. The power stage generates cur-
rent for controlling the motor on the basis of the motion signals from
the controller.
Quick Stop The Quick Stop function can be used for fast deceleration of a move-
ment as a response to a detected error or via a command.
Warning If the term is used outside the context of safety instructions, a warning
alerts to a potential problem that was detected by a monitoring func-
tion. A warning does not cause a transition of the operating state.
LXM32
Glossary
Common DC bus
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MNA01M001EN, V1.01, 08.2014