Until recently, purchasing drives, motors, and cables from different suppliers was routine. The technology simplified the process of choosing the cables, and any installation technician was capable of choosing cables that met a specific application’s needs and installing them without causing any critical issues in the system.
Amplitude gain margin is a measurement in the frequency domain, taken from a Bode plot, that takes the amplitude below 0 dB at the lowest frequency point that the phase reaches -180 degrees (phase crossover frequency).
So, you’re beginning to size a new servo motor and drive for an application. How do you go about doing this? Sizing tools can be highly beneficial for achieving optimized products. However, one needs to pay attention to the warnings and information provided in sizing systems.
A collaborative robot (Cobot) is a robot intended to physically interact with humans in a shared workspace. This is in contrast with other robots, designed to operate autonomously. A "cobot" is a robot that works in tandem with a human worker. The assumption is that a cobot and a human can produce an end result better and faster than either could do working alone.
Frameless, or “servo motor kits”, open up numerous possibilities in designing motion elements for your machine related to performance. A frameless motor consists of rotor and stator components which are built into a machine assembly to transmit torque to a load. Many applications which take advantage of a frameless motor are direct driven, which eliminates bandwidth robbing compliance. Effectively, this means you have eliminated torsional losses and any wind-up or spring losses.
A collaborative robot (or Cobot) is a robot that is made to work with or interact with human co-workers. For most of us normal folks, the most well-known example is Tony Stark’s robotic arm. (For those reading who are wondering why I don’t refer to the arm as JARVIS, it’s because JARVIS is the AI and controls other things but not the robotic arm.) Tony has bit of an unhealthy relationship with the robotic arm, he insults it, puts it in a dunce cap, puts it in time out, or threatens to dismantle it. At which point the robotic arm usually hangs his robotic limb downward into sadness. But, the robotic arm is there to do work for Tony in his basement. He may have a large house, but he doesn’t want a 10-foot-tall robot behind a fence. He wants an assistant, a co-worker of sorts that can help build his Iron Man suits.
Search the web for frameless or kit motors and you will find many offerings to choose from. When looking at the motor specifications, there are many important parameters to consider such as rated speed, rated current, peak current, etc. What do all these things mean and why is it important to understand how the values are being presented?
We’ve covered feedback devices before in our Blog in Motion posts, but today we want to touch base on current trends we are seeing related to feedback devices for servo applications. We asked Dan Wolke a few questions about where we see the market heading.