Yaskawa Electric America today at the Pack Expo show unveiled a souped-up servo system that offers improvements in positioning accuracy and speed, a reduction in size, and the addition of new auto-tuning and vibration-suppression capabilities. Called Σ-V, the system is based on new servo motors and amplifiers that cover a range from 0.1 to 15 kW.
Yaskawa technical documents cite a standard positioning accuracy as good as 10 nm and settling times in the 0 to 4 ms range once the system has been auto tuned. Σ-V amps have a frequency response of 1.6 kHz.
Much of the systems’ performance boost comes down to Yaskawa’s latest auto-tuning and vibration-suppression algorithms. According to Greg Findlay, one of the company’s motion engineers, the auto-tuning has been perfected to the point where it all but eliminates the need for manual tuning. "Turn it on and leave it alone," he says. The Σ-V’s new vibration-suppression algorithm addresses frequencies all the way up to 1 kHz, and Findlay notes that the vibration-suppression function can also work in conjunction with the Σ-V’s torque reference filter to address even higher frequencies.
As for size, the Σ-V motors and amplifiers are respectively one-third and one-quarter smaller by volume than Yaskawa’s previous servo system. "Even with the size reduction, the Σ-V provides the same torque at a given power rating," Findlay says.
Truchard will be presented the award at the 2014 Golden Mousetrap Awards ceremony during the co-located events Pacific Design & Manufacturing, MD&M West, WestPack, PLASTEC West, Electronics West, ATX West, and AeroCon.
Robots that walk have come a long way from simple barebones walking machines or pairs of legs without an upper body and head. Much of the research these days focuses on making more humanoid robots. But they are not all created equal.
The IEEE Computer Society has named the top 10 trends for 2014. You can expect the convergence of cloud computing and mobile devices, advances in health care data and devices, as well as privacy issues in social media to make the headlines. And 3D printing came out of nowhere to make a big splash.
For industrial control applications, or even a simple assembly line, that machine can go almost 24/7 without a break. But what happens when the task is a little more complex? That’s where the “smart” machine would come in. The smart machine is one that has some simple (or complex in some cases) processing capability to be able to adapt to changing conditions. Such machines are suited for a host of applications, including automotive, aerospace, defense, medical, computers and electronics, telecommunications, consumer goods, and so on. This discussion will examine what’s possible with smart machines, and what tradeoffs need to be made to implement such a solution.