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.…
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.
As data becomes available, maintenance can shift from being done on a rigid schedule to a more cost-effective plan of…
As data becomes available, maintenance can shift from being done on a rigid schedule to a more cost-effective plan of fixing as required, even turning attention to the root cause of maintenance woes.
EMC-compliant panels are an excellent first step in reducing electromagnetic interference from industrial control…
EMC-compliant panels are an excellent first step in reducing electromagnetic interference from industrial control systems. Learn about some features of electromagnetic compatibility in panels.
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.
Events that cause alarms are not the most common events in a process system, but they must be handled with proper care,…
Events that cause alarms are not the most common events in a process system, but they must be handled with proper care, being both resolved and recorded in order to prevent hazards and downtime.
Rockwell Automation is known for being one of the most popular PLC brands, supported by many compatible devices. Learn…
Rockwell Automation is known for being one of the most popular PLC brands, supported by many compatible devices. Learn the basics of getting started with a CompactLogix project in the Studio 5000 environment.
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?
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.
Learn how to make complex calculations for validating data easily with the STD instruction, and learn how to display…
Learn how to make complex calculations for validating data easily with the STD instruction, and learn how to display array sizes programmatically with the SIZE instruction.
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.
Connecting a new motor without knowing the phase rotation of the electrical supply can cause damage to expensive…
Connecting a new motor without knowing the phase rotation of the electrical supply can cause damage to expensive equipment. By using a 3-phase rotation meter, you can save yourself time and money.
With precise control abilities to manage speed, torque, and direction, variable frequency drives remain one of the most…
With precise control abilities to manage speed, torque, and direction, variable frequency drives remain one of the most common methods of driving 3-phase industrial motors. Below, we introduce a few leading VFD manufacturers.
Arrays can streamline data storage and math operations, but they can be difficult to understand for a beginning…
Arrays can streamline data storage and math operations, but they can be difficult to understand for a beginning programmer. Learn the background of array instructions in the Rockwell Studio 5000 software.
Tracking the position of a hydraulic or pneumatic cylinder is often accomplished at a basic precision level, detecting…
Tracking the position of a hydraulic or pneumatic cylinder is often accomplished at a basic precision level, detecting only end stop limits with discrete digital values… But what methods accomplish this?
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.