Rockwell Automation Announces Expansion of Allen-Bradley PowerFlex 755T AC Drive Lineup with TotalFORCE Technology

The thousands of attendees at this week’s busy 2016 Automation Fair event in Atlanta were introduced to a host of new and upgraded products from Rockwell Automation and its partners. Occupying a top spot in the “new” category are several Allen-Bradley PowerFlex AC drive solutions that help users reduce energy costs and increase machine uptime for assets running in high-demand applications.

According to Rockwell Automation, these latest additions to its PowerFlex 755T drive lineup provide harmonic mitigation, regeneration and common bus system configurations. Scheduled for release in 2017, these drives mark the introduction of the manufacturer’s TotalFORCE technology that’s said to offer superior electric-motor control through precise, adaptive control of velocity, torque, and position.

Features and Capabilities
The expanded Allen-Bradley drive portfolio includes the PowerFlex 755TL low-harmonic drive, PowerFlex 755TR regenerative drive, and PowerFlex 755TM common DC bus drive system, all compliant to the IEEE 519 specification. All offer the additional advantages of a world-class footprint, comprehensive diagnostic and maintenance features, and simplified startup and installation.

• The PowerFlex 755TL drive uses active, front-end technology and an internal harmonic filter to reduce harmonic distortion. This drive is available from 250 to 1,800 hp (160 to 1250 kW).
• The PowerFlex 755TR drive delivers power from 250 to 3,000 hp (130 to 2,300 kW) and includes both regenerative and harmonic mitigation solutions. This drive helps reduce energy consumption and costs by delivering energy back to the incoming supply, resulting in a more energy-efficient solution.
• The PowerFlex 755TM drive system allows users to build the system that best fits their needs for regeneration and coordination of multiple motors in common bus configurations. To optimize their system requirements and meet power-consumption needs, users can select from a series of predesigned modules with a power range from 250 to 3,000 hp (130 to 2,300 kW).

All of these solutions feature advanced, predictive diagnostics to estimate and provide notification of the remaining life span of drive components, such as fans, relay contacts, power semiconductors and capacitors. Users can actively monitor parameters like temperature and runtime of the drive and motor to allow for preventive action if necessary.

The design of these units lets users complete removal of a module from the cabinet. This creates ample space for wire installation and allows the power wiring to stay connected while the module is rolled out. Installation and maintenance is further simplified with an accessory cart that allows one person to easily insert or remove a module without the need for a ramp or hoist.

The new drives are said to be fully configured in the Rockwell Software Studio 5000 design environment as part of the Premier Integration experience when working with Logix controllers. This helps to reduce programming time, simplify startup and streamline diagnostics.

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