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Drives

Modern Variable Frequency Drives are Already Good – But They are Getting Even Better

27 Apr 201631 Mar 2020

By Fuji Electric. Variable frequency drives have emerged as a surefire way to reduce energy costs in induction motor systems. From pumps and fans to material handling and industrial processes,…

Drives

Reforming Capacitors on VFDs

8 Apr 201616 Apr 2019

Manufacturers highly recommend reforming capacitors on VFDs that have been stored, without power, for more than 1 year. Material Required Appropriate single phase or three phase power supply.220-230VAC Drives =…

Drives

What is a VFD?

15 Feb 20161 Jan 2020

By ABB. You can divide the world of electronic motor drives into two categories: AC and DC. A motor drive controls the speed, torque, direction and resulting horsepower of a…

Common Premium-Efficient Motor Misconceptions

10 Feb 20164 Aug 2019

By SEW Eurodrive. 1. Efficiency automatically equals savings. Not necessarily; it depends on the application. Current Australian MEPS (Minimum Energy Performance Standards) requirements mandate that new motor efficiencies be as…

Drives

How Does an AC VFD Work?

28 Jan 20164 Aug 2019

By ABB. An AC variable frequency drive must simultaneously control output frequency and voltage to efficiently control the speed of a three phase induction motor. AC Tech SMVector NEMA1 (IP31)…

Drives

Timely tips for dealing with drive accessories

18 Oct 20144 Sep 2019

By Guy Stuart and Jack Gayara. Beware of VFD-induced motor currents Engineers are often unaware of the currents induced on motor shafts by variable frequency drives (VFDs) and the havoc…

Drives

Feed your VFD with the right power

15 Jun 20144 Sep 2019

By Thomas Robbins, Lenze Americas Corp. Whether it's stock VFDs in conveyors, fans, and cooling towers, or specialized units in presses, extruders, roll-forming machines, lathes, and routers, their proper use…

Drives

How to Choose the Right Control Method for VFDs

18 Apr 20144 Sep 2019

By Steve Peterson, Yaskawa America Inc. Motors account for at least half of the energy consumed in the U.S. Selecting the right control method for an application lets the motor…

Drives

Sizing Three-Phase Inverters for Single-Phase Power Applications

13 Feb 20144 Sep 2019

By Hitachi. Although Hitachi does not offer inverters above 3 hp specifically sized and rated for single-phase operation, single-phase power can be safely used with larger 3-phase rated inverters, provided…

Drives

Top 10 Tips: Specifying VFDs

26 Jan 20144 Sep 2019

By Joe Kimbrell, AutomationDirect. Variable frequency drives - or VFDs - can reduce energy consumption, improve real time control, and lengthen motor life. Selecting the right one for your application…