Category: Circuits

Why Do Some VFDs Have Brakes?

A Variable Frequency Drive(VFD) is a power conversion electronic device used to control the speed of an AC induction motor, by converting a fixed frequency, fixed AC supply voltage to a variable frequency AC voltage input to the motor. And since the frequency is directly proportional to RPM (Revolutions per Minute), the RPM speed of…

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The Basics of Reading PLC Panels and Wiring Diagrams

PLC Panel Overview  In industrial applications, an electrical panel is basically a service box that connects the main power line to an electrical device and distributes electric currents to various other circuits within the system. In an industrial setting, you don’t simply plug a PLC controller into a wall socket, instead, an electrical panel is…

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Parallel Resistance Calculator: What is Parallel Resistance and How is it Calculated?

Parallel Resistance Calculator Resistor 1 Ohms (Ω) Ohms (Ω) Resistor 2 Ohms (Ω) Ohms (Ω) Add Results Equivalent Resistance What is Parallel Resistance?  Resistance is defined as the measure of opposition to charge flow (current flow) in an electrical circuit. It is measured in ohms and symbolized by (Ω)-a Greek letter omega. Naturally, all materials…

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What’s the Difference Between Single- and Multi-Turn Encoders?

The position of a shaft within a machine can affect several concerns including safety, quality, volume and other variables.  To monitor and control information that can be obtained from the shaft position and rotation, encoders were devised to measure and control the data and motion of the machine along the shaft. There are two types…

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