Latest Motor Control Circuits Articles

DC motors are an old technology still commonly used in industry. This hands-on article shows how to implement a Count Up…

DC motors are an old technology still commonly used in industry. This hands-on article shows how to implement a Count Up (CTU) counter on an Arduino OpenPLC Simulator to control a low-voltage DC motor.

CUI Devices has expanded its product line of motion and control components, offering a new family of shaft and shaftless…

CUI Devices has expanded its product line of motion and control components, offering a new family of shaft and shaftless potentiometers that come in different varieties with varying resistance ratings.

We are taught that parallel circuits maintain equal voltage across all branch resistors, equally sharing the source…

We are taught that parallel circuits maintain equal voltage across all branch resistors, equally sharing the source voltage. But reality is often far from ideal, and individual devices certainly impact the rest of the circuit.

Programmable Logic Controllers, or PLCs, are designed to receive signals and influence load devices automatically. Learn…

Programmable Logic Controllers, or PLCs, are designed to receive signals and influence load devices automatically. Learn how to connect and program discrete output devices like solenoids, relays, and lights.

Previously, we described how to use the new Arduino PLC IDE to control discrete devices. This tutorial will describe how…

Previously, we described how to use the new Arduino PLC IDE to control discrete devices. This tutorial will describe how to connect various peripheral equipment (VFD and robot) using analog inputs and outputs.

We know that servo motors are found inside machines that rely on precise motion with feedback to verify proper operation,…

We know that servo motors are found inside machines that rely on precise motion with feedback to verify proper operation, but how do they work, and what makes them different from any other kind of motor?

Coil, field winding, rotor, stator, eddy current… When it comes to motors, there are numerous terms that describe the…

Coil, field winding, rotor, stator, eddy current… When it comes to motors, there are numerous terms that describe the theory of operation, but what is inside a 3-phase motor? Take a look, and learn how they work.

Programming languages often include sine and cosine functions. They simplify programming, but consume valuable memory…

Programming languages often include sine and cosine functions. They simplify programming, but consume valuable memory space and computation time. This can be overcome using simple approximations.

In this article, we will take a look at the differences between synchronous and induction motors, as well as the two…

In this article, we will take a look at the differences between synchronous and induction motors, as well as the two types of induction motors: squirrel cage and wound rotor.

Although the are similarities in operating theory, relays and contactors are used in industrial circuits for different…

Although the are similarities in operating theory, relays and contactors are used in industrial circuits for different specific applications, and should not be used interchangeably.

Two common methods exist for driving induction motors with VFDs - linear scalar control, which is often labeled as V/f,…

Two common methods exist for driving induction motors with VFDs - linear scalar control, which is often labeled as V/f, and vector, or field-oriented control, which can be a bit more complex to understand.

Large DC and AC motor drives often provide terminals for installing a braking resistor. What are these resistors, and how…

Large DC and AC motor drives often provide terminals for installing a braking resistor. What are these resistors, and how do they slow down a machine? What hazards and cautions must be considered?

Redundancy and safety are often seen together in industrial safety systems. Safety relays monitor emergency devices to…

Redundancy and safety are often seen together in industrial safety systems. Safety relays monitor emergency devices to switch contacts based on status - but what makes them different from normal relays?

AC motors are common throughout industry - easily controlled by VFDs and without the maintenance that comes with DC…

AC motors are common throughout industry - easily controlled by VFDs and without the maintenance that comes with DC brushes. So then, why are DC motors still used in certain applications?

Before digital control systems, responses were fairly slow. Push a button, and a motor contactor engaged. These days, the…

Before digital control systems, responses were fairly slow. Push a button, and a motor contactor engaged. These days, the speed of computers introduces some new challenges but brings solutions as well.

One of the most visible elements of industrial safety is the use of lock-out-tag-out (LOTO) devices, familiar to those…

One of the most visible elements of industrial safety is the use of lock-out-tag-out (LOTO) devices, familiar to those with experience. But, if you are new to the workforce, a brief introduction may be helpful.

Safety is of utmost importance in the day-to-day operations of any system, especially a system where humans and machines…

Safety is of utmost importance in the day-to-day operations of any system, especially a system where humans and machines work together. Learn all about Safety Instrumented Systems and what it takes to keep workers safe, and the system running smoothly!

Motors drive all sorts of processes in a facility. Depending on the application, which motor starter is best suited for…

Motors drive all sorts of processes in a facility. Depending on the application, which motor starter is best suited for your needs?

Different conveyance systems have different ways to calculate speed. Let’s dive into these systems, their speed, and…

Different conveyance systems have different ways to calculate speed. Let’s dive into these systems, their speed, and some determining factors.