It may be tempting to size a variable frequency drive (VFD) based on horsepower alone. Did you know there are six other factors you should take into consideration to ensure that you specify the correct AC drive for your application? Six Factors to Consider When Choosing a VFD: Full Load Amperage Overload Application Type Altitude…
VFDs, RS485, PLCs — these terms may seem like names of droids or faraway galaxies and planets in a “Star Wars” movie. However, they really refer to earthly based components that Vermont Technical College engineering student Dan Rapoza learned about when he set out to help a dairy farmer save time and money by automating…
The Energy Policy and Conservation Act (EPCA) of 1975 marked the beginning of energy conservation standards for industrial, commercial and consumer products and equipment. The U.S. Department of Energy (DOE) created 60 plus categories of applications and equipment, affecting 30 percent industrial energy use.
For well over 30 years, variable frequency drives (VFD) have been controlling the speed of three-phase alternating-current (AC) induction motors. In addition to saving energy, there are many things to consider for maximum efficiency, control, operation and motor life when using VFDs.
ApplicationApplication StoriesAutomation NotebookAutomationDirect SpotlightDiscrete SensingEducation/DIYIndustryIssue 37 - 2017Learning ResourcesMotion ControlNotebook IssuePLCProductProgrammable ControlStudent SpotlightTest and MeasurementVariable Speed Drives
Beam Testing at Portland State
For their undergraduate senior capstone project, a team of Mechanical Engineering students at Portland State University (PSU) recently designed an electronic system upgrade for the control system of a 100-year-old beam testing machine. Using a range of AutomationDirect parts, the purpose of the project was to make the operator experience comparable to modern machines.
+Tech TopicsAC Motors and ControlsLearning ResourcesMotion ControlMotorsOnline OnlyProductVariable Speed Drives
Selecting Motors for Industrial Applications
Efficient use of motors is always important, but there are many other things to consider when specifying an electric motor. Mechanical and environmental considerations are on the list, as is the application and operation. All of these factors are important, but the application is where the selection process should start. How to Select a Motor…
ApplicationApplication StoriesEducation/DIYEntertainmentHMIIndustryMachine ControlOnline OnlyOperator InterfacePLCPneumaticsPneumaticsProductProgrammable ControlVariable Speed Drives
The Halloween Box
In every haunted house, you’ll find automated props: chairs that rock on their own, slamming doors, rattling chains, drawers opening and closing as if by some supernatural force. These “tricks” enhance the “treat” of getting the life scared out of you. The process behind making a Halloween prop can be quite simple. Here is just…
AutomationDirect SpotlightMotor ControlsProductSupplier ProfilesSupplier ProfilesVariable Speed Drives
WEG| Small Town Touch with a Global Reach
It’s not every day that a 92-year-old founder of a global company comes to a sales meeting but that’s not unusual at WEG. This type of corporate culture defines the company and makes its customers eager to work with them. Whether it’s hosting backyard barbeques with executives or working side-by-side in the office, WEG has…
ApplicationApplication StoriesAutomation NotebookIssue 35 - 2016Learning ResourcesMaterial HandlingNotebook IssueOnline OnlyOperator InterfacePneumaticsProductProgrammable ControlUser SolutionsVariable Speed Drives
Riada Solves Difficult Packaging Problem
When selecting the right shampoo, what factors do you consider? Scent, ingredients, cost? How about packaging? That’s right, packaging. For the follicly-challenged, like myself, packaging may be a real decision maker. After all, luster, sheen and volumizing abilities are kinda lost on me. For most, packaging is an afterthought, if it is a thought at…
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…