Emerson EZMotion User Manual page 258

EMI - Electro-Magnetic Interference
EMI is noise which, when coupled into sensitive electronic circuits, may cause problems.
Firmware
The term firmware refers to software (i.e., computer programs) that are stored in some fixed form, such as read-only memory
(ROM).
Flash
Another type of EEPROM.
Flash File
In the SM-EZMotion module, this file loads the firmware into the drive and function module. Flash files can field upgrade the
firmware.
FM
Function Module - device which is attached to the front of the drive to provide additional functionality.
Global Where Am I
PowerTools feature that indicates which line of which user program is executing.
Home Routine
The home provides motion in applications in which the axis must precisely align with some part of a machine.
Hysteresis
For a system with an analog input, the output tends to maintain its current value until the input level changes past the point that set
the current output value. The difference in response of a system to an increasing input signal versus a decreasing input signal.
I/O
Input/Output. The reception and transmission of information between control devices. In modern control systems, I/O has two
distinct forms: switches, relays, etc., which are in either an on or off state, or analog signals that are continuous in nature generally
depicting values for speed, temperature, flow, etc.
Index
An index is a complete motion sequence (defined motion profile) that moves the motor a specific incremental distance or to an
absolute position.
Inertia
The property of an object to resist changes in rotary velocity unless acted upon by an outside force. Higher inertia objects require
larger torque to accelerate and decelerate. Inertia is dependent upon the mass and shape of the object.
Input Function
See destination. A function (i.e., Stop, Preset) that may be assigned to an input line. In PowerTools Pro, the input function is
connected to the action through click and drag operations in PowerTools Software on the Assignment View.
Input Line
The terminals of a device or circuit to which energy is applied.
Jog
A jog produces rotation of the motor at controlled velocities in a positive or negative direction.
Least Significant Bit
The bit in a binary number that is the least important or having the least weight.
LED
Light Emitting Diode used on the front display of drives and function modules.
List Box
In a dialog box, a list box is an area in which the user can choose among a list of items, such as files, directories, printers or the like.
mA
Milliamp, which is 1/1000th of an Ampere.
MB
Mega-byte.
MODBUS
Communication Protocol by Modicon. The drives follows the Modbus specification outlined in the Modicon Modbus Protocol
Reference Manual, PI-MBNS-300 Revision G, November 1994.
Module
SM-EZMotion Module
Most Significant Bit
The bit in a binary number that is the most important or that has the most weight.
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EZMotion User/Programming Guide
www.controltechniques.com Revision: A8