Drives optimize energy efficiency, reduce control room, panel space, cooling costs

Up to 68% smaller than previous generation drives, compact D-frame drives from Danfoss VLT Drives are optimized to deliver highly reliable performance in the 125 – 450 HP range while exhausting 90% of the drive-generated heat outside the enclosure via the backchannel.


Danfoss D-Frame VLT Drives are available in a power range from 125-450 hp (90-315 kW) and up to 68% smaller than previous generation D-Frame drives, new D-Frame drives require significantly less panel or wall space than previous models which were already among the smallest in their class. This reduces installation costs and increases installation flexibility. These drives also leverage back channel cooling to remove 90% of the heat generated by the drive, reducing both up front and ongoing costs and making them an ideal panel building solution.


“With ever-increasing demands for improved efficiency and reliability in drive technology, OEMs, panel builders and end users are looking for new technologies that can save energy, reduce costs and help simplify operations in a solution that will provide trouble-free operation for years,” said Greg Reichelt, Product Manager High Power Drives, North America. “The new D-Frame VLT drives deliver on each count. Not only are these drives among the smallest in their class, they also include an array of efficiency and safety enhancing options as standard features, enabling customers and end users to reduce both initial and ongoing operating costs.”


The new drives are available with IP20, IP21 (NEMA 1) or IP 54 (NEMA 12) enclosure protection ratings. For robust protection they also come standard with conformal coated printed circuit boards, which together with the optional heat sink access panel, help to extend drive lifetime and reliability. The new units can be factory-fitted with optional semiconductor fuses to further reduce installation costs. Additional factory-fitted basic input options, such as mains disconnect, contactor and circuit breaker, eliminate the need to install these basic options externally.


New D-Frame drives also use Danfoss’ unique and innovative back-channel cooling concept to keep electronics safely within optimal operation temperatures. The big advantage of back-channel cooling is that system installation and operating costs can be dramatically reduced.


“Using a ducted back-channel, air is allowed to pass over the unit’s heat sink with minimal air passing through the electronics area. This way 90% of the heat generated by the drive is exhausted directly outside of the enclosure, improving reliability and prolonging the lifetime of the unit. An IP54 (NEMA 12) seal between the back- channel cooling duct and the electronics area of the VLT drive helps to significantly reduce temperature rise and contamination of the electronic components,” explained Reichelt.

Danfoss provides energy-efficient solutions that help save energy and meet the challenge of climate change. Key competencies are cooling of food, air conditioning, control of electrical motors and heating in buildings – as well as solutions for renewable energy such as solar power. Danfoss also comprises Sauer-Danfoss that is among the world’s leading manufacturers of mobile hydraulics. The 77 year company employs 26,000 employees globally and has 140 sales companies globally.

No comments
The Top Plant program honors outstanding manufacturing facilities in North America. View the 2013 Top Plant.
The Product of the Year program recognizes products newly released in the manufacturing industries.
The Engineering Leaders Under 40 program identifies and gives recognition to young engineers who...
A cool solution: Collaboration, chemistry leads to foundry coat product development; See the 2015 Product of the Year Finalists
Raising the standard: What's new with NFPA 70E; A global view of manufacturing; Maintenance data; Fit bearings properly
Sister act: Building on their father's legacy, a new generation moves Bales Metal Surface Solutions forward; Meet the 2015 Engineering Leaders Under 40
Cyber security cost-efficient for industrial control systems; Extracting full value from operational data; Managing cyber security risks
Drilling for Big Data: Managing the flow of information; Big data drilldown series: Challenge and opportunity; OT to IT: Creating a circle of improvement; Industry loses best workers, again
Pipeline vulnerabilities? Securing hydrocarbon transit; Predictive analytics hit the mainstream; Dirty pipelines decrease flow, production—pig your line; Ensuring pipeline physical and cyber security
Upgrading secondary control systems; Keeping enclosures conditioned; Diagnostics increase equipment uptime; Mechatronics simplifies machine design
Designing positive-energy buildings; Ensuring power quality; Complying with NFPA 110; Minimizing arc flash hazards
Building high availability into industrial computers; Of key metrics and myth busting; The truth about five common VFD myths

Annual Salary Survey

After almost a decade of uncertainty, the confidence of plant floor managers is soaring. Even with a number of challenges and while implementing new technologies, there is a renewed sense of optimism among plant managers about their business and their future.

The respondents to the 2014 Plant Engineering Salary Survey come from throughout the U.S. and serve a variety of industries, but they are uniform in their optimism about manufacturing. This year’s survey found 79% consider manufacturing a secure career. That’s up from 75% in 2013 and significantly higher than the 63% figure when Plant Engineering first started asking that question a decade ago.

Read more: 2014 Salary Survey: Confidence rises amid the challenges

Maintenance and reliability tips and best practices from the maintenance and reliability coaches at Allied Reliability Group.
The One Voice for Manufacturing blog reports on federal public policy issues impacting the manufacturing sector. One Voice is a joint effort by the National Tooling and Machining...
The Society for Maintenance and Reliability Professionals an organization devoted...
Join this ongoing discussion of machine guarding topics, including solutions assessments, regulatory compliance, gap analysis...
IMS Research, recently acquired by IHS Inc., is a leading independent supplier of market research and consultancy to the global electronics industry.
Maintenance is not optional in manufacturing. It’s a profit center, driving productivity and uptime while reducing overall repair costs.
The Lachance on CMMS blog is about current maintenance topics. Blogger Paul Lachance is president and chief technology officer for Smartware Group.