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THE USE OF DANFOSS GRAHAM'S VLT® 6000 AFDs FOR ECHELON® LONWORKS® IS DESCRIBED IN NEW LITERATURE
Milwaukee, WI . . . . Where ever the Echelon® Lonworks® communication protocol is used, Danfoss Graham VLT® 6000 Series Adjustable Speed Drives can be seamlessly installed as a control device requiring no integrator panel.
The VLT 6000 not only provides precise control of fan motors and pumps, but also monitors performance and sends data back to the system during normal operation or when it is necessary to diagnose and correct faults.
[an error occurred while processing this directive]Integration with LonWorks is achieved with an easy to install option board. The LonWorks board mounts inside the standard drive enclosure. A simple two-wire connection is all it takes to bring the VLT 6000 on-line. Existing drives can be field-upgraded for LonWorks communication.
Programming of the drive is possible, and as easy as using a keyboard, once the VLT 6000 and Siemens FLN systems are communicating. All Danfoss Graham drives arrive factory-programmed for the specific application for which they were selected, but customer adjustments may sometimes be desirable.
Danfoss Graham's unique built-in. Proportional, Integral, Derivative (PID) controller allows FLN system users the ability to utilize two set points and feedbacks in their drive and motor control loop these setpoints and feedbacks can be combined to meet a variety of applications needs, freeing network resources for other tasks.
Danfoss Graham drives provide a run permissive feature that prevents operation of the drive and motor when critical system components are not in proper position for start-up. This will prevent operation when inappropriate start-ups could result in equipment damage.
All of the VLT 6000's features are assessable through the LonWorks system. These features include low and high frequency warnings, low and high reference warnings, output ground faults, signal loss, no load/broken belts, missing phase, motor or drive over temperature, line under voltage or over voltage, DC bus under voltage and over voltage, and output over current protection.
The drives automatically stop when speed drops below a pre-set "sleep" level for a specified time, until demand increases. The drive automatically synchronizes its output frequency with motor speed, regardless of direction of rotation.
The VLT 6000 provides trouble free, highly efficient operation, utilizing automatic switching frequency modulation, automatic energy optimization, automatic motor adaptation, digital voltage vector control and auto ramping. All drives and panels are built to ISO 9001 quality standards. All drives and panels are UL, C-UL listed and the drives are CE marked.
Visit Graham's Web Site: http/www.grahamdrives.com Graham's e-mail address is: graham@grahamdrives.com
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