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Archive for the ‘General’ Category

Creating Documentation for Custom Equipment

Do you build and engineer your own equipment in-house? If so, how up-to-date would you say your service manuals are? Since third-party vendors can only support the components and subsystems that they provided, this is a common issue. If machine A interfaces to machine B, for example, and there is a communication problem that exists […]

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Occam’s Razor Applied to Troubleshooting

Occam’s Razor is based on the principle that the simplest solution is most often the correct one. In the world of troubleshooting, Occam’s Razor is absolutely critical for making the best use of time and resources. Whether you service your own equipment in-house or service customer equipment in the field, the 80/20 rule applies to […]

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The “Shotgun” Approach to Troubleshooting

    It is estimated that 67% of parts returned to warehouses are not actually defective. We see this all the time at PDF Supply. We go through an extensive electrical testing process with parts when they come back to us, and many times, we find that there is nothing wrong with these components. Why […]

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Is it a Mechanical Problem or an Electrical Problem

In electromechanical systems with servo motors, chain drives, and other physical moving parts, it’s not as easy to tell a mechanical problem apart from an electrical problem as you might think. There are a lot of gray areas and symptoms that may look like one or the other. Also, it may be a combination of […]

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Proactive Ways to Minimize Equipment Problems

If you spend any time on call for maintenance support, there are a number of things you can do to prevent that dreaded 2:00 AM phone call. Aside from your regular PM routine, there are a few other things you can look at to help minimize the type of electrical failures that can occur without […]

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Highlights from Consumer Electronics Association 2013 Sustainability Report

Early in September, the Consumer Electronics Association (CEA) released a report, discussing important elements of technology innovation that will impact markets over the next decade. Below are some highlights covered in the report, which can be downloaded here. Planning for product end of life. Consumer electronics companies are making an increasing priority of designing products […]

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Will Smart Elevator Technology Enter a New Phase of Growth?

Smart Elevators were originally designed to reduce the time cost of waiting for elevators in skyscraper buildings at busy hours. They make fewer stops by clustering passengers into specific cars based on their destination floors. If you’ve never seen a smart elevator, it’s a different experience. Instead of pushing an “up” or “down” button as […]

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You Are the Alpha Tester

The software development life cycle, as well as the hardware product life cycle, is getting shorter and shorter. The GE 90-70 Series PLC had a good 30-year run before it became officially obsolete, but that kind of phenomenon is non-existent today. From consumer products to industrial products, customers are upgrading and replacing systems more and […]

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Three Bad Habits of Electrical Technicians

Let’s face it; there are technicians who know how to diagnose and troubleshoot system faults, and then there are technicians who only know how to make guesses. Anyone who has ever worked in an industrial setting for any length of time has seen the difference. Anyone can blindly go through the motions and do the […]

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Labor Day is Here!

Tired of being patched through to voice mail? Give us a call at 919-535-3180 to get your replacement parts shipped out ASAP. Happy Labor Day!

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Rockwell Disclaimer: The product is used surplus. PDF Supply is not an authorized surplus dealer or affiliate for the Manufacturer of this product. The product may have older date codes or be an older series than that available direct from the factory or authorized dealers. Because PDF Supply is not an authorized distributor of this product, the Original Manufacturer’s warranty does not apply. While many Allen-Bradley PLC products will have firmware already installed, PDF Supply makes no representation as to whether a PLC product will or will not have firmware and, if it does have firmware, whether the firmware is the revision level that you need for your application. PDF Supply also makes no representations as to your ability or right to download or otherwise obtain firmware for the product from Rockwell, its distributors, or any other source. PDF Supply also makes no representations as to your right to install any such firmware on the product. PDF Supply will not obtain or supply firmware on your behalf. It is your obligation to comply with the terms of any End-User License Agreement or similar document related to obtaining or installing firmware.