Control with regenerative braking

May 24, 2007
The PowerFlex 700l AC drive from Allen-Bradley, Milwaukee (ab.com), a div. of Rockwell Automation, can provide precise positioning with quick response times, continuous decelerations, and stop high-inertia loads, all while saving energy.

Instead of relying on resistor braking like most other controllers, the liquid-cooled 700L uses regenerative braking to generate electricity while braking. This electricity is put back into the system and used by other equipment.

A liquid-cooled heat sink transfers over 80% of the heat from the drive to the coolant, giving the unit the best drive power-to-size ratio in the market, according to the manufacturer. And it is about half the size of typical air-cooled controllers. The 700L also features an active converter and line-side filters so it will perform consistently despite power dips or other power-quality issues. It also sends 480 V to the motor even when operating on 380-Vac power lines.

Sponsored Recommendations

MOVI-C Unleashed: Your One-Stop Shop for Automation Tasks

April 17, 2024
Discover the versatility of SEW-EURODRIVE's MOVI-C modular automation system, designed to streamline motion control challenges across diverse applications.

The Power of Automation Made Easy

April 17, 2024
Automation Made Easy is more than a slogan; it signifies a shift towards smarter, more efficient operations where technology takes on the heavy lifting.

Lubricants: Unlocking Peak Performance in your Gearmotor

April 17, 2024
Understanding the role of lubricants, how to select them, and the importance of maintenance can significantly impact your gearmotor's performance and lifespan.

From concept to consumption: Optimizing success in food and beverage

April 9, 2024
Identifying opportunities and solutions for plant floor optimization has never been easier. Download our visual guide to quickly and efficiently pinpoint areas for operational...

Voice your opinion!

To join the conversation, and become an exclusive member of Machine Design, create an account today!