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Drives & Motors

We found 286 posts about Drives & Motors from DO Supply, a global automation parts reseller focused on hard-to-find and obsolete industrial automation products.

July 3, 2023

New Motor Tech: Permanent Magnet Drives

Permanent magnet drives, an innovative motor technology, are becoming increasingly popular in various modern applications due to their unique characteristics and advantages over traditional induction motors. At the core of this technology is the use of permanent magnets, which provide a constant magnetic field that interacts with the stator’s electrical field to generate torque and drive the motor. This design eliminates the need for external excitation, leading to higher efficiency, reduced energy consumption, and a more compact form factor. Permanent magnet drives have made significant inroads in various industries, including electric vehicles, robotics, renewable energy, and industrial automation, owing to their ability to offer precise control, quick dynamic response, and exceptional power density. As global energy demands continue to rise and the need for sustainable solutions becomes more pressing, the adoption of permanent magnet drive technology is poised to play a crucial...

June 26, 2023

New Motor Tech: Axial Flux Rotors

New motor technology is rapidly advancing, with new developments and innovations emerging all the time from electric motors that are more efficient and powerful than ever before. By increasing efficiency and reducing carbon emissions, new motor technologies possess the capability to make a substantial effect on the fight against climate change. There is a wide range of new motor technologies, such as axial flux rotors, that promise to revolutionize the way we need and utilize energy. The advancements in motor technology are not just limited to the automotive industry; they also affect several other sectors, such as manufacturing, robotics, and aerospace. With each breakthrough, the potential for greater efficiency, performance, and sustainability grows, paving the way for a cleaner and more advanced future. As we continue to push the boundaries of what is possible, it’s an exciting time to be following the latest developments in motor technology. “Stator and rotor by Zureks ” by...

April 10, 2023

Maximizing Your Industrial Automation Efficiency with PLCs, HMIs, Drives, and Motors

Industrial Automation is the use of automation devices and different technologies such as robotics, computer software, and communication systems to control industrial processes and machinery without significant human input. An extensive range of tools is required to implement industrial automation including control systems that integrate different automation devices like PLCs, HMIs, Drives, and Motors Programmable Logic Controllers (PLCs) are used to control and monitor industrial machinery/processes. Human-Machine Interfaces (HMIs) provide a user-friendly interface that connects plant operators to industrial controllers for machines, systems, and other devices. Drives control the torque and speed of industrial motors, while motors are used in industrial automation systems to convert electrical input energy into mechanical output energy. Industrial automation is increasingly becoming an essential part of modern-day manufacturing and production processes. Therefore, an understanding of...

March 6, 2023

The Top Motors of 2022

The motor plays a vital role in any application where rotational or linear motion is involved. In earlier times, some mechanisms involved the use of pulley systems to meet such requirements but due to advancements in technology and the industrial revolution, motors were introduced for such purposes. There are many famed companies and industries which are thriving to be on the top in terms of motor manufacture and design and motor-based industrial, domestic, and automobile solutions. Every year, these companies introduce more efficient, economical, and robust designs. The motors can be AC or DC depending upon the use. All have their drives through which they are operated autonomously. The motors can be further classified as: Synchronous Motors Asynchronous Motors BLDC or Brushless DC motor AC induction motor Hydraulic based motor Stepper motor Servo motor Motors are widely used for automobiles and for domestic and industrial purposes that may include: Vehicles EV’s Drones Conveyer...

December 12, 2022

Pump Features for Soft Starts

A motor is the main component of any machine that performs some valuable function. In industry, high-power and high-torque motors are used to carry out various operations. These motors are either single-phase or three-phase AC motors. Motor drivers or motor starters are used to control the motor’s direction, switching, and speed. Industrial electric motors require high electric current during the acceleration phase due to high inertia load till they reach their nominal speed of operation. There are different types of motor starting mechanisms, which include a direct online, auto transformer, and star delta. Other than these, solid-state devices are also used to start motors, including soft starters and variable frequency drives (VFDs). This guide will focus on the soft start, its advantages over other practices, and its applications in the industry. Eaton Culter-Hammer S801 Soft Starter S801T30N3S A three-phase soft starter is a circuit consisting of six TRIACs, which control the...

November 28, 2022

PowerFlex 700 vs PowerFlex 755

PowerFlex 700 and Powerflex 755 are part of Allen-Bradley’s product line of powerful AC drives that provide flexible control. The Powerflex 700 consists of low-power and high-power AC drives. These AC drives offer superior performance and are easy to use in operations. The PowerFlex AC drives control three-phase induction motors for numerous industrial applications. The applications range from simple speed control to demanding ones, including high torque control. In 2017, Rockwell Automation discontinued PowerFlex 700 AC high-power drives (250-700 Hp). The low-power AC drives are still available from the manufacturer. A new range of AC drives, PowerFlex 755, was introduced to replace the discontinued high-power PowerFlex 700 AC drives. The new AC drives have many features and enhanced performance to improve operations. This guide highlights the different features of PowerFlex 700 AC drives and PowerFlex 755 AC drives and provides an in-depth comparison. Allen Bradley PowerFlex 700...

October 17, 2022

Soft Starters vs Contactors

A contactor is an electrically controlled electromechanical switch, similar to a relay, whose function is to break or make the electrical connection between a connected load and the main power supply. Contactors are used to switch currents ON and OFF in circuits, where the switched current is at a much higher level than the supply current. For example, a 24 Volts electromagnetic coil in a contactor can be used to control a 230 Volts electric motor switch. Applications of contactors include controlling AC and DC electric motors, heating and lighting circuits, thermal evaporators, capacitor banks, automated industrial equipment, and other assorted electrical loads, but without providing protection against overload conditions. They are typically used to control electrical equipment requiring to be turned on and off frequently, such as heaters, lights, and motors. For example, contactors are often used to provide centralized control of extensive lighting installations in retail and office...

October 11, 2022

Regenerative vs Non-Regenerative DC Drives

The electronic device that captures and regulates the electrical energy sent to the motor is known as a drive. The drive modifies the amount and frequency of energy fed to the motor, which indirectly controls the motor’s speed and torque. Based on the voltage type, the two main categories of drives are; AC drives and DC drives. DC drive is one of the most reliable, efficient, inexpensive, user-friendly, and easy technology to implement. They also have many advantages over AC drives especially for regenerative and higher power applications. They have many industrial uses as they can give us very precise control. While in some applications we can see VFDs and AC drives as an alternative, in applications like cranes, hoists, elevators, spindle drives, winders, paper manufacturing machines, crushers, etc., we still have to use them. Allen Bradley 20F11FD2P1AA0NNNNN PowerFlex 753 Drive DC drive is a speed control system that gives the motor the potential difference to operating it at a...

October 4, 2022

Mitsubishi MELSERVO Selection Guide

In industry, servo motors provide precise position and speed control to assist various machine control operations. Industrial servos are mainly alternating current (AC) servos that control AC motors. The manufacturing and process industries are becoming fully automated, limiting human intervention in most tasks, thus increasing efficiency, safety, and quality. Mitsubishi’s AC Servo Systems (MELSERVO) has fulfilled industries’ demands for years by providing complete servo solutions. MELSERVO provides three types of control operations: position, speed, and torque corresponding to applications in warehouse management, spin coaters for the semiconductor industry, and industrial printers, respectively. The AC servos configuration comprises three devices; the servo amplifier, the servo motor, and the controller (exceptions exist). The servo amplifier works as the control unit, the servo motor acts as the drive unit, and the controller functions as the command unit. The controller provides...

September 20, 2022

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 the AC induction motor can be controlled by regulating the frequency and voltage of its input power. For example, if a motor-driven process requires more speed, then the VFD will increase the frequency of the input voltage to the motor and vice versa. AC induction motors are often designed as fixed frequency electrical devices, operating at 60 Hz (Hertz) or 50 Hz depending on the supply frequency of a given national grid. But the input frequency and voltage to a VFD-equipped AC motor can be adjusted by the VFD circuit to regulate motor speed. Before the advent of VFDs, variable motor speeds were obtained by running the motor at full speed and using...

September 12, 2022

Why Do Some VFDs Have Encoders?

The Variable Frequency Drive (VFD) is an electronic device used to control the speed of an AC motor, by converting the fixed frequency and fixed AC voltage being supplied to the motor into a variable AC frequency and voltage. By adjusting the motor’s input frequency and supply voltage, the VFD can control an AC motor to operate at numerous different speeds. VFDs also have the capability to control ramp-up during motor start-up and ramp-down when stopping the motor. Other alternative names for a Variable Frequency Drive include: Adjustable Frequency Drive (AFD) AC Drive Inverter Frequency Converter Frequency Inverter VFDs are the industry-standard method for controlling both the speed and torque of three-phase AC induction motors. It has always been useful to directly control the speed of AC induction motors used in industrial applications, as nearly every process that uses such motors will benefit from speed control. Not only is the process efficiency improved, but in many cases...

September 7, 2022

What Does I/O do on a VFD?

VFD is a motor control device used in electromechanical systems, which drives an electric motor and controls its speed and torque by changing the frequency and voltage of the power supply. The modern VFD drives are capable of integrating networks and diagnostic capabilities for better control performance and more productivity. So, we can say that the three main reasons for choosing VFDs as a controller in an application is saving energy, intelligent motor control, and reducing the peak current drawn. They are commonly used in fans, pumps, and compressors and account for 75 percent of all the drivers operating worldwide. VFDs can perform the following functions: It is a power conversion device that converts the fixed voltage and frequency to variable voltage and frequency, which can control the output of the AC motors. They are often known as speed controllers of the motor. These variable frequency drivers can also control the torque of the motor and keep it constant by maintaining the...

August 18, 2022

TLY vs. TL Servo Motors

Allen Bradley TLY & TL Servo Motor TL-A220P-HJ32AA For applications where precision, accuracy, and control of rotation are required, servo motors have been used for a long. Servo motors are those kinds of electromechanical tools that have provided the convenience of feedback based on which the user can monitor the movement of the motor degree by degree. According to the user’s application, different servo motors are available: continuous rotation, linear rotation, and positional rotation servo motors. TL series servo motors are low inertia servo motors, which means they can control the load’s velocity very well and help control the load’s acceleration and deceleration. The low inertia feature in these servo motors helps them to preserve their state of uniform motion or state of rest longer. These types of servo motors come with different types of frame sizes. The frames are of metric and NEMA standards to make mounting of these motors easy and compact according to the desired...

August 11, 2022

What do VFDs do in HVAC Systems?

The term HVAC is an acronym that stands for Heating, Ventilation, and Air Conditioning; it broadly describes systems that provide heating and cooling to commercial and residential buildings for environmental comfort. A typical HVAC system includes Heating equipment, Ventilation equipment, and Air-Conditioning or Cooling equipment; the functions of these three elements are interrelated, particularly when providing thermal comfort and acceptable indoor air quality. For example, the Heating element, which may be a boiler or furnace, includes a piping system for the heat-carrying fluid or ductwork in case of a forced air system. The Ventilation element (either natural or forced) uses fresh outdoor air to provide high-quality indoor air through a process called ventilation–a process of exchanging or replacing air within a designated space. This process also involves the removal of dust and smoke particles, moisture, airborne bacteria, heat, odors, carbon dioxide, and other unwanted gases...

July 6, 2022

Drive Component Overview: DC Bus Definition and Overview

Drive or Electric Drive is an electromechanical system that necessarily uses an electric motor or a prime mover. In this system, the motion of the electric motor is controlled to make it applicable and useful for some applications in the realm of industry, automotive, domestic use, hospitals, etc. In an electric drive system, energy conversion is controlled. Motor, control systems and power converter (power electronics) are major components of electric drive. The selection or construction of various drive components varies depending upon the application and environment where the system is to be used. DC bus is part of the power electronics part of the drive. Its stability and voltage control are crucial to gaining good results for the drive system. The Drive system is a complex electrical system. As mentioned earlier, the following are its major components Electric Motor Controller Power Converter or Power Electronics Section These three components are complex systems in themselves...

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