Product category:
Stepper and Servo Drives, Motors, Controls
News Release from: Nexen Group | Subject: RSD200
Edited by the Engineeringtalk Editorial
Team on 27 March 2003
Controller keeps dancer arm rock steady
The RSD200 is the latest addition to their Nexen Group dancer arm controller family.
The RSD200 is the latest addition to their Nexen Group dancer arm controller family This microprocessor-based controller is designed for high precision and easy operation
This article was originally published on Engineeringtalk on 16 Jul 2003 at 8.00am (UK)
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Controller holds dancer arms rock steady
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It features an adaptive control algorithm that provides consistent performance throughout the most demanding applications, without requiring expensive roll diameter and web speed feedback.
The RSD200's PC-based setup and calibration eliminates potentiometers and unwanted manual adjustments with the controller.
Nexen's closed-loop dancer control system includes the RSD200 digital dancer position controller, EN50 electro-pneumatic transducer, DPS 30 or 60 dancer position sensor, and power supply.
The RSD200 interfaces with a brake, clutch or motor drive to provide stable web tension through adjustments in dancer arm position.
Dancer position sensors accurately measure the rotational movement of a dancer arm.
The EN50 electropneumatic transducer allows the RSD to interface directly with air engaged brakes/clutches.
The RSD system is completely automatic and requires no user intervention during normal operation.
Its function is to maintain constant and consistent tension by compensating for roll-diameter changes, egg-shaped rolls, and other tension disturbances.
The dancer arm stores web material in a loop, and maintains constant tension by increasing or decreasing the amount of material in the loop.
The dancer arm functions best when kept in its mid-range position, so it is always able to increase or decrease storage quickly.
If the dancer arm position changes, Nexen's position sensor senses the movement and sends a signal to the RSD200, which provides a corrective signal to the tension brake/clutch/drive to increase or decrease web storage accordingly.
The dancer control system is designed for use in winding or unwinding of materials such as paper, film, foil, cloth, and wire.
The RSD system works in both single roll and flying splice applications.
Components can function as replacement items in existing systems and is CE compliant when used as a complete system.
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