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Managing PM AC Servo Motor Overloads: Thermal Time Constant
07 May 2018

When intermittent power density is of a required high value, you may not want to use classic RMS calculations and speed-torque performance curves as your only method to select a servo motor and drive. Doing so might cause an under-sizing of the motor or drive.

Getting started sizing & selecting servos
11 Apr 2018

Sizing and selecting a servo motor system for a machine design begins by understanding the components that make a servo motor or servo-drive system. Servo systems are closed-loop, controlling some desired motion. They incorporate a feedback device that provides constant information between the motor and drive to precisely control position, speed and torque to the mechanism being driven.

01 Sep 2017

Direct Drive servo motor and drive technology not only reduces an axis’ parts count, mechanical losses and often its objectionable noise; Direct drive technology also increases a machine’s efficiency, lowering operation cost for the user due to its inertia ratio, as compared to the more common mechanically advantaged multi-body axis designs. Reducing the mechanical transmission components such as gearboxes, timing belts, pulleys, cams, lead screws and so on, between the motor and its load is only part of the savings!

26 Jun 2017

Engineers are juggling a lot these days. Many find themselves focusing on just getting a machine running so they can move on to other pressing matters at hand, but when it comes to Motion Control “good enough” just isn’t good enough anymore.

10 May 2017

Food and beverage companies and their machine suppliers constantly fight to keep our food supply safe. These microscopic battles are fought with large quantities of water and chemical sanitation processes. Hygienic machine design is critical even down to the sub-component level in order to allow these processes to be effective in removing product residues, removing pathogens, and destroying bacterial intruders.

18 Apr 2017

Decentralizing servo technology can bring machine and plant construction savings during installation. Two additional advantages include reduced cabinet heat loads and more straight forward drive architecture. The question arises however, which technology is better, an integrated motor/drive solution or a detached motor and drive?

30 Nov 2016

The ability to adopt and successfully carry out an effective sanitation program is largely determined by facilities and equipment that are constructed in alignment with sanitary design standards.

06 Sep 2016
Stepper Motor or Servo Motor Which Should it be? Each technology has its niche, and since the selection of either of these technologies for a given application affects its chance of success, it is important for the machine designer
11 Nov 2015

Your first question may be what is a servo motor’s inertia ratio or mismatch (J_load : Jm or J_load/Jm)? Simply put, the inertia ratio is an important figure-of-merit for helping the machine designer consider servo controllability and risk of future potential control instabilities during the design’s initial inception. While an important figure-of-merit for all closed loop (servo) applications, it is perhaps even more relevant for the most dynamic servo applications.

03 Nov 2015

Hydraulic and pneumatic systems have traditionally been the market leader in providing power in the aerospace and defense industry because of their low cost and high power density. But in recent years, attention has been focused on the limitations of hydraulic actuators including their weight, performance and high maintenance requirements, as well as concerns over their vulnerability due to security issues and other risks.