Cost-effective ac drives have smaller footprint

Product Exclusive: Allen-Bradley PowerFlex 750 series ac drives from Rockwell Automation offer new solution for applications 0.75 kW to 7.5 kW/1.0 hp to 10 hp at 400 V/480 V.


Allen-Bradley PowerFlex 750 series ac drives from Rockwell AutomationThe Allen-Bradley PowerFlex 750 series ac drive family from Rockwell Automation now offers new options designed for low-power applications requiring full-featured ac drives with an optimized size. The cost-effective PowerFlex 753 and 755 ac drives, with a power range of 0.75 kW to 7.5 kW / 1 hp to 10 hp (400 V / 480 V), offer the smallest footprint within the well-established PowerFlex 750 series. Although small in size, these new drives retain the valuable features that have made the PowerFlex750 series popular, including predictive diagnostics, safety options, simplified integration, and a flexible slot-based architecture.

“These new drives are ideal for applications where space is at a premium—for example, machines requiring multiple drives in a cabinet,” said John Cherney, global product manager, Rockwell Automation. “They’re about 20% smaller than other drives in the PowerFlex 750 series, yet they provide the same control features and options currently available in the larger PowerFlex 753 and 755 drives.”

Like other PowerFlex 753 drives, the new smaller version provides machine builders and manufacturers with the versatile motor control they need for general-purpose applications. Designed to meet global user needs, the drive supports multiple languages and complies with global standards and certifications. The PowerFlex 753 drive is suited for many industries and applications, including fans, pumps, and conveyors.

PowerFlex 755 drives, including the new offering, provide the added benefits of both induction and permanent magnet motor support as well as an embedded Ethernet port that allows users to easily configure, control, and collect drive data over EtherNet/IP networks. In addition, native instructions within Rockwell Software RSLogix 5000 software provide simplified drive integration with the Rockwell Automation Integrated Architecture system. The recently introduced RSLogix 5000 v20 provides an Automatic Device Configuration feature designed to help customers increase productivity through reduced downtime. With this feature, the Logix controller can automatically detect a replaced PowerFlex 755 drive and download configuration parameters without the need for manual reconfiguration.

The complete line of PowerFlex 755 drives extends up to 1500 kW / 2000 hp, and is well suited for a wide variety of applications ranging from simple variable speed and variable torque control to the most demanding systems requiring constant torque control. Target applications include: fans, pumps, mixers, compressors, conveyors, and extruders.

​Both of the new PowerFlex 750 series drives feature a slot-based mechanical architecture that allows customers to tailor the drive with as few or as many options as their application requires. Each drive has three option slots to accommodate modules for I/O, feedback, safety, additional communications, and an auxiliary power supply. Options are common for the PowerFlex 753 and 755 drives, minimizing inventory and spare-part requirements.

Rockwell Automation

This was a February 2012 Product Exclusive, introduced to Control Engineering subscribers in the February North American print and digital editions.

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.