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Archive For: Variable Speed Drives

Electrical Noise and EMI in the Workplace

Electrical Noise and EMI in the Workplace

Drive or motor failures, lights flickering, analog signal variations and poor encoder count repeatability are all symptoms of electrical noise issues. Automated machinery is often the victim of electrical noise, and frequently also the source. Whether it’s electromagnetic interference (EMI) or radio frequency interference (RFI), there are many options available to reduce its effects. Both ... Read More
 
Converting a Mill/Drill and Installing a VFD

Converting a Mill/Drill and Installing a VFD

Several years ago I purchased a Wadkin lathe made in England in late 1964. It is equipped with a very special motor that is 220V, three-phase and 50Hz. Because of the special design of the motor, it has a long extended shaft that carries the four sheave pulley, and because I do not have three-phase ... Read More
 
To VFD or Not to VFD

To VFD or Not to VFD

You’ve probably seen and read way too many articles telling you to use variable frequency drives on your AC motors to save energy, reduce maintenance and lengthen motor life. This is not one of those articles. Instead, we’re going to show you just how to calculate whether or not a VFD makes sense for your ... Read More
 
Trending Towards Green Machines

Trending Towards Green Machines

When wandering the plant floor, keep an eye out for energy wasting machines. Those running conveyors, rattling pumps and hissing air lines on idle equipment not only raise the decibel level in the plant—they also waste energy. With proper monitoring and analysis, machine energy use can be optimized, and these energy saving measures will also improve ... Read More
 
Technical College Students Understand Protective Relays

Technical College Students Understand Protective Relays

Protective relays are specialized devices designed to sense abnormal conditions in electric power systems, commanding circuit breakers to trip or close when needed. These relays are absolutely essential to the reliable operation of the electric power generating stations, substations, transmission lines, and distribution systems that comprise any large-scale electric power grid; they are increasingly finding ... Read More
 
Automation Improves Alternator Test System

Automation Improves Alternator Test System

Opening the hood of your car will reveal a mass of cables and hoses running around the engine block. Somewhere in there is an alternator, which helps keep your car supplied with electric power when it’s running. When an alternator goes bad, most mechanics will replace it with a used unit that has been remanufactured, ... Read More
 
Systems & Controls Takes Time for Tea

Systems & Controls Takes Time for Tea

Systems & Controls in Lenoir City, Tennessee, was contacted by a scale manufacturing company to develop a brewed tea and coffee container filling machine using four weight transmitters, a DirectLOGIC DL-05 PLC, a RHINO power supply,  a C-more touch panel and a GS2 variable frequency drive.
 
Top 10 Tips: Specifying VFDs | White Paper

Top 10 Tips: Specifying VFDs | White Paper

VFDs can significantly extend the life of motors and cut operating costs, but selecting the right unit is critical to achieving these benefits. This White Paper provides detailed information, such as determining load and braking requirements, to help users choose the right VFD. It also explains how to maximize benefits through various communication options and best operating ... Read More
 
AutomationDirect introduces IronHorse DC Drives

AutomationDirect introduces IronHorse DC Drives

Cumming, GA — December 18, 2013 … AutomationDirect’s IronHorse line of motors and drives now includes the GSD series of DC drives. IronHorse GSD1 series DC drives are high-performance Pulse-Width-Modulated (PWM) controllers for 12 to 36 volt battery/solar-powered equipment providing smooth control with high-efficiency operation. Design features include adjustable maximum/minimum speed, current limit, I.R. compensation, and acceleration. The ... Read More