Kollmorgen AKD PDMM series, User Manual

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AKD PDMM User Guide | Glossary
Term Description
SynqNet
SynqNet is a digital machine control network. Built on the 100BT physical
layer, SynqNet provides a synchronous real-time connection between motion
controllers, servo drives, stepper drives, I/O modules, and custom devices
T.i.r.
This stands for Total Indicator Reading, which reflects the total absolute devi-
ation from a mean value (versus a ± value which indicates the deviation from a
nominal value).
Thermal
Expansion
The thermal expansion is a change of the size and shape of a system when the
temperature is modified. The amount of change is dependent on the size of the
component, the degree of temperature change and the characteristics of the
material.
Timestamp
A timestamp is a sequence of characters, denoting the date and/or time at
which a certain event occurred.
Torque
A radially directed force, typically measured in inch-ounces, foot-lbs. or New-
ton-meters.
Typecasting
In computer science, type conversion or typecasting refers to changing an
entity of one data type into another. This is done to take advantage of certain
features of type hierarchies. For instance, values from a more limited set, such
as integers, can be stored in a more compact format and later converted to a dif-
ferent format enabling operations not previously possible, such as division with
several decimal places' worth of accuracy.
There are two types of conversion: implicit and explicit. The term for implicit
type conversion is coercion. The most common form of explicit type con-
version is known as casting. Explicit type conversion can also be achieved
with separately defined conversion routines such as an overloaded object con-
structor.
Velocity
A vector quantity whose magnitude is a body's speed and whose direction is
the body's direction of motion. Both speed and direction are required to define
it and measured in meters/second (m/s).
Wibu
Developed by WIBU-SYSTEMS AG, WibuKey is the way to protect DMS soft-
ware
Wobble
To move or rotate with an uneven or rocking motion or unsteadily from side to
side.
Yaw
The yaw is a rotation (angular deviation from the ideal straight line of travel)
around the Z axis which is a vertical plane perpendicular to the direction of
travel. For the X-axis travel, the yaw will cause an Abbé error in the X and Y
directions.
An angular deviation from ideal straight line motion, in which the positioning
table rotates around the Z (vertical) axis as it translates along its travel axis.
Zero angle Mechanical zero angle of the feedback = 0 degree.
507 Kollmorgen™ | December 2012