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…
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.
A subset of light is the focused cohesive beams that make up lasers, which can be used in optical sensing. These devices…
A subset of light is the focused cohesive beams that make up lasers, which can be used in optical sensing. These devices provide benefits of greater range, precision, and even mapping for mobile robotics.
3D printers have come a long way over the years, but can we really expect to see them on the factory floor, taking the…
3D printers have come a long way over the years, but can we really expect to see them on the factory floor, taking the place of large machining centers? What benefits and challenges does printing offer to manufacturing?
Optical sensors are one of the most popular sensor types in industrial automation. This article covers optical sensor…
Optical sensors are one of the most popular sensor types in industrial automation. This article covers optical sensor basics and commonly used types, including fiber optic, photoelectric, and optical encoders.
Field-oriented control (FOC), also called vector control, can control 3-phase alternating current motors and brushless DC…
Field-oriented control (FOC), also called vector control, can control 3-phase alternating current motors and brushless DC motors. Read more to learn its advantages, how it works, and its best applications.
Motors consume the highest current during startup—this is a well-known fact. But logically, the slowest speed should…
Motors consume the highest current during startup—this is a well-known fact. But logically, the slowest speed should relate to the lowest power consumption. Why, then, is inrush current so high for motors?
Large motors require a circuit to turn on and off. This may be as simple as a single on/off drum-type switch or as…
Large motors require a circuit to turn on and off. This may be as simple as a single on/off drum-type switch or as elaborate as a VFD unit. Learn about some common control circuit designs for typical three-phase motor requirements.
Power quality is an increasing concern for manufacturers all over the world as electrical equipment becomes more advanced…
Power quality is an increasing concern for manufacturers all over the world as electrical equipment becomes more advanced and therefore sensitive to discrepancies in the supplied power.
Modbus is one of the oldest industrial communication protocols still in use today. Continue reading to find out how the…
Modbus is one of the oldest industrial communication protocols still in use today. Continue reading to find out how the protocol works and how to use it for monitoring and control.
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.
Machine safety design can be a daunting task with all the different safety devices on the market today. Choosing the…
Machine safety design can be a daunting task with all the different safety devices on the market today. Choosing the correct device for your design can be made easier by understanding when to use the proper device.
Industrial network switches connect automation equipment, controllers, and other such devices. Learn about unmanaged,…
Industrial network switches connect automation equipment, controllers, and other such devices. Learn about unmanaged, managed, and PoE enabled switches, as well as the differences between switches, routers, and hubs.
Designing a system with motor motion always includes a consideration of safety. Incorporating safety contactors might be…
Designing a system with motor motion always includes a consideration of safety. Incorporating safety contactors might be the correct prevention to protect equipment and users but may add additional challenges.
Linear and switch-mode power supplies provide direct current to power control components and electrical devices. Learn…
Linear and switch-mode power supplies provide direct current to power control components and electrical devices. Learn about the differences between the two power supplies and which one is best for your control system.
Many control product manufacturers offer these downloadable ‘EDS files’ for peripheral equipment, but what exactly is…
Many control product manufacturers offer these downloadable ‘EDS files’ for peripheral equipment, but what exactly is an EDS, and how can they aid in the development of a project?
PLCs and microprocessors have largely replaced timing functions in control circuits. But these timer relays still hold…
PLCs and microprocessors have largely replaced timing functions in control circuits. But these timer relays still hold many necessary tasks. What’s inside these devices might be more complex than you imagined!
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.
Air power drives a lot of modern equipment. Robot grippers, ejectors, actuators, and rotary tables are just a few of the…
Air power drives a lot of modern equipment. Robot grippers, ejectors, actuators, and rotary tables are just a few of the devices controlled by air. What’s inside those banks of solenoid valves, and how do they work?
Learn how to streamline your ladder logic by searching and sorting arrays with the FSC and SRT instructions in the…
Learn how to streamline your ladder logic by searching and sorting arrays with the FSC and SRT instructions in the Rockwell (Allen-Bradley) Studio 5000 programming software.