Articles & News on Motors and Drives

Rolls-Royce announces electronics manufacturing capability at Purdue

  • News

The first controller has been completed at Rolls-Royce in the Purdue Research Foundation’s Discovery Park District adjacent to the Purdue University campus in West Lafayette, Indiana, and will be installed onto a Rolls-Royce AE 3007H engine, manufactured at the company’s facilities in Indianapolis.

FAULHABER announces FAULHABER Drive Selection Tool

  • News

A solution for developers and application engineers, information, such as speed and torque, is sufficient in order to determine the appropriate solution. A list with the most important parameters shows the choices calculated.

What Do Design Engineers Need to Know about Brushless DC Motor Technologies

  • by Walter Smith
  • News

The disruptive growth of the Internet of Things (IoT) and next-generation smart manufacturing, also known as Industry 4.0, is placing demands on designers to develop motion-enabled solutions that are powerful, small, precise and efficient.

Controlling Multiple Motors with One VFD Saves Money and Space

  • by Kay Dekker and Joe Koepke
  • Feature

Many applications use one or more motors operating in parallel at the same desired speed. Using one Variable frequency drive (VFD) to control these multiple motors provides a host of advantages 

Multi-Axis Synchronization

  • by John Rathkey
  • News

The term "multi-axis synchronization" refers to the motion which requires coordination, and the techniques used to achieve control of the motion. With today's increasing automation and machine sophistication, the control applications have become more demanding, and the control techniques have improved.

Employing an Adjustable Frequency Drive with a Soft Starter Bypass Improves System Reliability

  • by Timothy R. Skell
  • Feature

Optimum motor control packages start with a drive to provide the most control, flexibility, and protection. Adding a bypass with an integral soft starter provides a backup system to run the motor should the drive fail. Large drive systems should have soft starters in the bypass, otherwise the application risks negatively affecting the power system, damaged bearings, or bent shafts once the bypass is engaged.

10 Benefits Adjustable-Speed AC Drives Provide to Industrial Users

  • Feature

Adjustable Speed Drives are used in any application in which there is mechanical equipment powered by motors; the drives provide extremely precise electrical motor control, so that motor speeds can be ramped up and down, and maintained, at speeds required; doing so utilizes only the energy required, rather than having a motor run at constant (fixed) speed and utilizing an excess of energy.

Advances in Digital Servo Drive Motor Protection

  • by Dave Kaiser
  • Feature

Users are pushing motors closer to their theoretical torque and power limits.  In order to protect motors under these rated conditions, accurate thermal models of the motor are needed.

Factors to Consider in Cabling a Reliable VFD System

  • by Brian Shuman, RCDD
  • News

A Variable Frequency Drive (VFD) regulates the speed of a 3-phase AC electric motor by controlling the frequency and voltage of the power it delivers to the motor. Today, these devices are becoming prevalent in a wide range of applications throughout the industry, from motion control applications to ventilation systems, and many others.

Fundamentals of Servo Motion Control

  • by David Kaiser
  • News

The fundamental concepts of servo motion control have not changed significantly in the last 50 years.  The basic reasons for using servo systems in contrast to open loop systems include the need to improve transient response times, reduce the steady state errors and reduce the sensitivity to load parameters.