Glossary of Terms
Soloist Hardware Manual
A-8
www.aerotech.com
Range
The maximum allowable travel of a positioning stage.
RDC
Resolver to Digital Converter. Electronic component that
converts the analog signals from a resolver (transmitter
type) into a digital word representing angular position.
Repeatability
The maximum deviation from the mean (each side) when
repeatedly approaching a position. Unidirectional
repeatability refers to the value established by moving
toward a position in the same direction. Bidirectional
repeatability refers to the value established by moving
toward a position in the same or opposite direction.
Resolution
The smallest change in distance that a device can
measure.
Retroreflector
An optical element with the property that an input light
beam is reflected and returns along the same angle as the
input beam. Used with laser interferometers.
Roll (of travel)
Angular motion of a carriage around an axis parallel to
the motion direction and perpendicular to the yaw axis.
Roll Error
Positioning error resulting from a roll motion.
Rotor
The rotating part of a magnetic structure. In a motor, the
rotor is connected to the motor shaft.
RS-232C
Industry standard for sending signals utilizing a single-
ended driver/receiver circuit. As such, the maximum
distance is limited based on the baud rate setting but is
typically 50-100 feet. This standard defines pin
assignments, handshaking, and signal levels for receiving
and sending devices.
RS-274
Industry standard programming language. Also referred
to as G-code machine programming. A command set
specific for the machine tool industry that defines
geometric moves.
RS-422
Industry communication standard for sending signals
over distances up to 4000 feet. Standard line driver
encoder interfaces utilize RS-422 because of the noise
immunity.
Runout
The deviation from the desired form of a surface during
full rotation (360 degrees) about an axis. Runout is
measured as total indicated reading (TIR). For a rotary
stage, axis runout refers to the deviation of the axis of
rotation from the theoretical axis of rotation.
Servo System
Refers to a closed loop control system where a command
is issued for a change in position and the change is then
verified via a feedback system.
Содержание SOLOIST
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Страница 50: ...Technical Details Soloist Hardware Manual 3 6 www aerotech com Figure 3 3 User Outputs J104...
Страница 77: ...Soloist Hardware Manual Soloist Options www aerotech com 4 13 Figure 4 10 Suppression for DC Brake Systems...
Страница 78: ...Soloist Options Soloist Hardware Manual 4 14 www aerotech com...
Страница 88: ...Accessories Soloist Hardware Manual 5 10 www aerotech com...
Страница 96: ...Troubleshooting Soloist Hardware Manual 6 8 www aerotech com...
Страница 114: ...Index Soloist Hardware Manual iv www aerotech com...
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