CMP
Refer to the glossary term SOP.
Comparator
A comparator is a device that compares 2 quantities and determines their equality. The
comparator submenus allow the programmer to specify two variables to be compared. The
results of the custom comparison operations can be used in the system program.
Conguration Update
see Tool Suite denition.
Converter
The converter is the component of the drive that changes AC voltage to DC voltage.
Critical speed avoidance
Critical speed avoidance is a feature that allows the operator to program up to 3 mechanical
system frequencies that the drive will "skip over" during its operation.
CSMC
An acronym for Closed Loop Synchronous Machine (SM) Control, one of the control modes of
the drive. This is a ux vector control for a synchronous machine, utilizing an encoder for speed
feedback and providing a eld excitation command for use by an external eld exciter.
DC link
The DC link is a large capacitor bank between the converter and inverter section of the drive. The
DC link, along with the converter, establishes the voltage source for the inverter.
De Morgan’s Theorem
The duality principal of Boolean algebra used to convert system logic equations into sum-of-
products notation.
Debug Tool
see Tool Suite denition.
Downloading
Downloading is a process by which information is transmitted from a remote device (such as a
PC) to the drive. The term "downloading" implies the transmission of an entire le of information
(e.g., the system program) rather than continued interactive communications between the two
Glossary
NXGPro+ Control Manual
518 Operating Manual, A5E50491925A
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