Emerson Epsilon Eb Series Reference Manual page 253

Epsilon Eb and E Series EN Drives Reference Manual
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
A function (i.e., Drive OK, Fault) that may be attached to an output line.
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.
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-Base and -FM
Windows®-based software to interface with the Epsilon drives, E Series drives
and Function Modules.
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.
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