Servoamplifier applies DSP-based technology to simplify system set-up and commissioning while also enhancing the motor's electrical, mechanical and thermal capabilities
Copley Motion Systems has launched an all-digital servoamplifier
designed to raise the standard of brush motors to that of more
sophisticated, but significantly more expensive, brushless
The Junus servoamplifier applies DSP-based technology
to simplify system set-up and commissioning while also enhancing
the motor's electrical, mechanical and thermal capabilities.
Used in conjunction with Copley's CD-based CME2T software,
the Junus utilises user-invoked algorithms to fully automate
brush motor current loop tuning, thus eliminating all
conventional manually-adjusted potentiometers and interconnection
The powerful and intuitive Java-based software uses
on-screen prompts to allow detailed tuning adjustments to be
Final system parameters can be stored in the
Junus' non-volatile Flash memory, and CME2 is compatible
with a wide range of the most popular multi-station and PLC
Due to the Junus's DSP-based operation, motor
drive functions can be created digitally rather than using the
hardware-based circuitry required in analog servoamplifiers.
leads directly to a wide array of motor drive functions in a
smaller and cheaper package.
Critical for precision positioning,
zero crossing linearity is eliminated, while the Junus'
carrier cancellation modulation is notable for the mathematically
lowest ripple of all modulation techniques.
This is particularly
important for sensitive voice coil actuators.
servoamplifier also offers a low cost IR-compensated velocity
control technique that obviates the need for speed feedback from
a motor-driven tacho, thus cut the system cost and reducing load
A highly accurate I2?t motor energy monitoring system
allows high drive operation to be sustained by continuously
measuring the true thermal status of the motor and allowing its
protection circuits to be calibrated on the safe side of known
In addition, the versatility of the software
employed in the Junus means that it can accept a wide range of
analog and digital input commands and operating modes.