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
MODBUS
Communication Protocol by Modicon. The drives follows the Modbus specification outlined in the Modicon Modbus Protocol Reference Manual,
Module
Most Significant Bit
The bit in a binary number that is the most important or that has the most weight.
ms
Millisecond, which is 1/1000th of a second.
NVM
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
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