Emerson EZMotion User Manual page 259

ms
Millisecond, which is 1/1000th of a second.
NVM
Non-Volatile Memory. NVM stores specifically defined variables as the variables dynamically change. It is used to store
changes through a power loss.
NTC
Negative Temperature Resistor
Option Button
See Radio Button.
Opto-isolated
A method of sending a signal from one piece of equipment to another without the usual requirement of common ground
potentials. The signal is transmitted optically with a light source (usually a Light Emitting Diode) and a light sensor (usually a
photosensitive transistor). These optical components provide electrical isolation.
Output Function
See source. The terminals at which energy is taken from a circuit or device.
Output Line
The actual transistor or relay controlled output signal.
Parameters
User read only or read/write parameters that indicate and control the drive operation. These variables generally hold numerical
data defined in the Setup Views.
PC
Personal Computer.
PE
Protective Earth.
PID
Proportional-Integral-Derivative. An acronym that describes the compensation structure that can be used in many closed-loop
systems.
PLC
Programmable Logic Controller. Also known as a programmable controller, these devices are used for machine control and
sequencing.
PowerTools Pro
PowerTools Pro is a Windows® based software to interface with the SM-EZMotion module.
Radio Button
Also known as the Option Button. In a dialog box, radio buttons are small circles only one of which can be chosen at a time.
The chosen button is black and the others are white. Choosing any button with the mouse causes all the other buttons in the
set to be cleared.
RAM
RAM is an acronym for Random-Access Memory, which is a memory device whereby any location in memory can be found,
on average, as quickly as any other location. Commonly refers to Read-Write memory, as opposed to Read-Only Memory
(ROM, EPROM, EEPROM, Flash). RAM is considered volatile, because its contents are lost during a power loss.
RMS
Root Mean Squared. For an intermittent duty cycle application, the RMS is equal to the value of steady state current which
would produce the equivalent heating over a long period of time.
ROM
ROM is an acronym for Read-Only Memory. A ROM contains computer instructions that do not need to be changed, such as
permanent parts of the operating system.
RPM
Revolutions Per Minute.
Serial Port
A digital data communications port configured with a minimum number of signal lines. This is achieved by passing binary
information signals as a time series of 1's and Ø's on a single line.
Source
The terminals at which energy is taken from a circuit or device.
EZMotion User/Programming Guide
Revision A8 www.controltechniques.com
249