Many articles address the wiring and implementation of analog control signals, but where are they used, and what might make them a better (or perhaps worse)…
Many articles address the wiring and implementation of analog control signals, but where are they used, and what might make them a better (or perhaps worse) decision than digital input/output devices?
Using the right motor for the right task is critical - but what happens if the motor is connected to the wrong supply? It…
Using the right motor for the right task is critical - but what happens if the motor is connected to the wrong supply? It is never recommended, but important to quickly understand symptoms of incorrect wiring.
Single-phase motors are common in household and small industrial devices. They are a bit more complex than 3-phase…
Single-phase motors are common in household and small industrial devices. They are a bit more complex than 3-phase models, so it’s important to recognize failure modes and common symptoms.
Stepper motor control can be useful for motion applications. Learn the circuit connection and programming instructions…
Stepper motor control can be useful for motion applications. Learn the circuit connection and programming instructions for implementing stepper motor control using GX Works 2 on MELSEC FX-Series PLCs.
Three-phase motors are a backbone of the modern industrial control landscape. But plenty of applications still rely on…
Three-phase motors are a backbone of the modern industrial control landscape. But plenty of applications still rely on single-phase motors. Can these types of motors be reversed, and if so, how?
Implementing PID control in a PLC is far more complicated than textbooks would make it appear. There is more to the…
Implementing PID control in a PLC is far more complicated than textbooks would make it appear. There is more to the process than simply picking gain (k) values and calculating an output value.
Direct current (DC) motors have existed since the late 19th century. What sets these motors apart from AC models, how do…
Direct current (DC) motors have existed since the late 19th century. What sets these motors apart from AC models, how do you control them, and how can you tell when it’s time to repair or replace them?
Most grippers are powered by either air or electricity. Learn about the questions and factors an engineer should consider…
Most grippers are powered by either air or electricity. Learn about the questions and factors an engineer should consider to make the best decisions while selecting a gripper to use for unique applications.
Setting and resetting a PLC output is essential in establishing a holding circuit for a transducer. Learn how to use…
Setting and resetting a PLC output is essential in establishing a holding circuit for a transducer. Learn how to use set/reset instructions in MELSOFT series GX Works2 to latch and release an output.
Process automation relies on precise control systems to operate production equipment for everything from lumber to…
Process automation relies on precise control systems to operate production equipment for everything from lumber to pastries. Using control algorithms produces stable, accurate, and often delicious results.
Transfer functions allow systems to be converted from non-algebraic time measurement units into equations that can be…
Transfer functions allow systems to be converted from non-algebraic time measurement units into equations that can be solved, but how do these functions work, and why do we use them?
System dynamics is primarily concerned with understanding complex systems’ behaviors over time. Mathematical and…
System dynamics is primarily concerned with understanding complex systems’ behaviors over time. Mathematical and computer models can help identify responses before turning to costly real-world experiments.
We usually think of joysticks in terms of video game controllers, but they exist in all kinds of industrial systems:…
We usually think of joysticks in terms of video game controllers, but they exist in all kinds of industrial systems: heavy equipment, overhead cranes, and even some robotic controls. But how do they work?
Variable control allows external conditions, like temperature, to be monitored so the controller can activate devices to…
Variable control allows external conditions, like temperature, to be monitored so the controller can activate devices to heat or cool the system as needed. Simulate a temp controller with low-cost components!
Designing, installing, and maintaining control systems involves a lot of wires. Each wire has a purpose, often indicated…
Designing, installing, and maintaining control systems involves a lot of wires. Each wire has a purpose, often indicated by the color of the insulation. But what are the common colors, and what do they mean?
Rubber belts have lived under the hood of nearly every car since they first took to the streets, but they also transmit…
Rubber belts have lived under the hood of nearly every car since they first took to the streets, but they also transmit power through all kinds of industrial machine drives as well.
Although electrical systems often receive the highest praise for advancement, precision, and technological innovation,…
Although electrical systems often receive the highest praise for advancement, precision, and technological innovation, the world would be stuck without mechanical power delivery systems like gear drives.
Seeing use in a variety of industrial applications for position sensing and object detection, inductive sensors are based…
Seeing use in a variety of industrial applications for position sensing and object detection, inductive sensors are based on the phenomenon of magnetism and its resultant magnetic fields.
Many VFDs use digital inputs to control operation, rather than PLC-driven network communications. Learn about 2-wire and…
Many VFDs use digital inputs to control operation, rather than PLC-driven network communications. Learn about 2-wire and 3-wire digital input control schemes for ABB, Omron, Rockwell, and others.
There are many different kinds of electric motors used for industrial power transfer, but there are also hydraulic and…
There are many different kinds of electric motors used for industrial power transfer, but there are also hydraulic and pneumatic motors that can lend advantages in some situations.