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Glossary
µs
Microsecond, which is 0.000001 seconds.
A
Amps.
Amplifier
Servo Drive.
ARMS
Amps Root Mean Squared (RMS).
Axis
The full system to control in a single motor shaft. A single FM-4 module with EN Drive can denote an axis.
AWG
American Wire Gauge.
Baud Rate
The number of binary bits transmitted per second on a serial communications link such as RS-232. (1 character is usually 10
bits.)
Check Box
In a dialog box, a check box is a small box that the user can turn “On” or “Off” with the mouse. When “On” it displays an X
in a square; when “Off” the square is blank. Unlike option (radio) buttons, check boxes do not affect each other; any check
box can be “On” or “Off” independently of all the others.
Complex Motion
A string of multiple motion commands and logical instructions that form a repeatable operation. For the FM-4, the
configuration file defines complex motion by setups, functional assignments and programs.
Compound Motion
The combination of indexes in a row in which the deceleration ramp of the first index goes to the velocity of the secondary
index. The first index must be initiated within a program (Index.#.CompoundInitiate).
Configuration
The user-created application. It can be saved as a disk file or downloaded to configure the FM-4 module. It includes all the
user-defined setup, assignments and programs.
CRC
Cyclical Redundancy Check, the data transfer error checking mechanism.
Destination
A function (i.e., Stop, Preset) that may be assigned to an input line. In FM-4, the input function is connected to the action
through click and drag operations in PowerTools Software on the Assignment View.
Dialog Box
A dialog box is a window that appears in order to collect information from the user. When the user has filled in the necessary
information, the dialog box disappears.
DIN Rail
Deutsche Industrie Norm Rail
Epsilon EP-P Drive and FM-3/4 Module Reference Manual
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