2007-04-03 ――美国一位系统集成商表示：“我们最关心的是驱动器供应商没有为直流驱动器作出任何新的研发努力，只是固守十年前到二十年前的老产品，” ABB最新研发的DCS 800解决了这个问题，这是世界上一款最先进的直流驱动器。
SDS公司高级销售专家John Parker表示：“我们非常高兴得到ABB公司的产品和支持，目前，我们有八个造纸项目，这八个项目中我们都选用了ABB驱动器：ACS800, DCR800新式驱动器和DCS800”
[COLOR=#708090]Advanced ABB DC drive technology is the answer for DC motors
2007-04-03 - “Our biggest concern is that drive suppliers are not doing anything new with DC drives; they‘re sitting on products that are 10-to-20 years old,” says a U.S. systems integrator. ABB‘s new DCS800 – the most advanced DC drive in the world – is the answer.
Contracted by a leading U.S. paper mill to design a drives solution to increase the productivity and efficiency of a slitter-rewinder machine, systems integrator SDS Inc. was searching for a cutting-edge drive that would utilize the machine‘s existing DC motors and power system.
“Finding a supplier like ABB which continues to innovate new technology for DC motors was vital to the success of the project,” explains Craig Tierno, senior application engineer for SDS.
DC motors are widely used throughout North America. They have a long life, and customers are not keen to rip them out at great cost in order to get the benefits of high-performance AC drives. “If there is a more cost-effective method, customers want to hear about it,” says Tierno.
Launched in Europe in 2005, ABB‘s DCS800 offers the same tools and options as its market-leading AC drives, and combines best-in-class user-friendliness with unlimited scalability and the best power-to-size ratio on the market.
The slitter-rewinder is a critical piece of equipment in the papermaking process. It cuts huge rolls of newly made paper into shorter lengths and rewinds them into smaller, more manageable rolls. Any problem at the slitter-rewinder can bring the entire paper line to a halt.
The quality of the roll is governed largely by the performance of the drives. Minor inaccuracies in drive performance can cause defects like sheet breaks, rough edges, telescoping, offsets and tie-ups – resulting in downtime, rejected rolls and lost profit.
By equipping the four existing DC motors with DCS800 drives and installing two new ACS800 drives and 15 horsepower motors on the machine‘s rider rolls, SDS designed a solution that achieved the customer‘s targets: improved roll quality, increased machine speed to the highest possible level, and the elimination of costly shutdowns.
“We are pleased with the ABB products and support,” says John Parker, senior sales engineer at SDS. “At the moment we have eight paper manufacturing projects in front us for which we are recommending ABB drives - either ACS800, DCR800 retrofit drives, or DCS800.”[/COLOR]