Variable torque drives serve variable torque fan, pump, and blower applications

VLT Automation VT Drive from Danfoss is designed to reduce initial investment and to maximize flexibility for future in-field upgrades.


Danfoss VLT Automation VT Drives are engineered to save energy, reduce up front and operating costs, and maximize uptime in industrial variable torque fan, pump, blower and compressor applications.  They are available for 240 and 480 V ac single and three phase, or 575 and 690 V ac three phase operation with ½ up to 1400 hp, along with a wide range of industrial enclosure options, to support varied performance needs.

“Rooted in Danfoss’ unsurpassed experience in advanced drive technologies, VLT Automation VT Drives incorporate a number of energy optimizing features that can reduce energy usage in variable torque applications by up to 30%,” said Patrick Appleby, vice president sales, NAM Industry.  “They feature a modular plug-and-play design concept with an intuitive user interface for easy installation and maximum operational flexibility.  A variety of available options minimizes the initial investment, and makes it possible to easily upgrade the drives in the field as application needs evolve.”

A Smart Logic Controller eliminates ancillary equipment to reduce installed costs, and main disconnects and integral fusing further reduces installation cost by reducing panel space requirements.  Dedicated pump functions simplify programming and commissioning.  An optional one-wire Safe Stop can reduce installed costs for applications with safe operation requirements.

All VLT Automation VT Drives feature an integrated DC link to eliminate the need for external filters, along with Intelligent Heat Management to remove excessive heat and promote maximum drive operating life.  An ambient temperature rating of 50°C without derating eliminates the need for expensive cooling add-ons.

VLT Automation VT Drives provide autotuning of PI-controllers to eliminate the potential for tuning, and password protection reduces the potential for unauthorized changes to the drive settings.  They are available in a variety of industrial enclosures, from protected chassis to IP66 (NEMA 4X indoor), suitable for harsh washdown environments – without the need for customized panels.  These drives provide multiple language support to display all information in a user-selected language.

Danfoss VLT Drives

- Edited by Amanda McLeman, Control Engineering,

No comments
The Engineers' Choice Awards highlight some of the best new control, instrumentation and automation products as chosen by...
The System Integrator Giants program lists the top 100 system integrators among companies listed in CFE Media's Global System Integrator Database.
The Engineering Leaders Under 40 program identifies and gives recognition to young engineers who...
This eGuide illustrates solutions, applications and benefits of machine vision systems.
Learn how to increase device reliability in harsh environments and decrease unplanned system downtime.
This eGuide contains a series of articles and videos that considers theoretical and practical; immediate needs and a look into the future.
Choosing controllers: PLCs, PACs, IPCs, DCS? What's best for your application?; Wireless trends; Design, integration; Manufacturing Day; Product Exclusive
Variable speed drives: Smooth, efficient, electrically quite motion control; Process control upgrades; Mobile intelligence; Product finalists: Vote now; Product Exclusives
Machine design tips: Pneumatic or electric; Software upgrades; Ethernet advantages; Additive manufacturing; Engineering Leaders; Product exclusives: PLC, HMI, IO
This article collection contains the 5 most referenced articles on improving the use of PID.
Learn how Industry 4.0 adds supply chain efficiency, optimizes pricing, improves quality, and more.

Find and connect with the most suitable service provider for your unique application. Start searching the Global System Integrator Database Now!

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

(copy 5)