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To get the most out of your stepper motor, you need to pair it with the proper drive. There are three critical elements to keep in mind when making your selection: voltage, current and inductance. Each one plays an important part in a motor’s performance, and not accounting for these parameters can lead to poor performance or even cause the motor to overheat and fail—resulting in lost production time and increased maintenance costs. 

Missiles operate in some of the most demanding conditions. They can experience massive heat flux when going through the layers of the earth’s atmosphere and because of the sheer speed that the missile is traveling at. With speeds in excess of 10,000 kilometers per hour, they require components that can provide reliability and precise motion under these conditions. And with the need to respond to higher demands for performance, the technology powering these missiles needs to deliver more torque and power in relation to weight.

For rapidly evolving Aerospace and Defense (A&D) requirements, engineers are facing many challenges to keep up with ever evolving demands. From supply chain issues to changing government regulations, companies are being tasked with not only navigating these global issues but also providing more value-based technologies, reliable products, and constant innovation.  

The Low Voltage Directive defines low voltage from 50 – 1000 Vac, or 120 – 1500 Vdc, which is based on the mains voltage used to power the electrical system and ties in with specific IEC regulations on safety and risk of shock and arcing. When low voltage motors are discussed in the context of servo motors however, low voltage is focused on battery operated applications. While standard industry brushless motors are typically operated at 120 – 480 Vac, low voltage servo motors are optimized at voltages ranging for 24 – 96 Vdc. By definition, voltages in this range are considered by the IEC to be in the Extra Low Voltage (ELV) category.

Accessible and affordable automation for all has made a giant leap forward with the release of an AMR platform that enables users to install out-of-the box automation technology in less than a day.

All electric motors heat up during operation, which is simply a product of passing current through a coil of wire. Electric motors use copper wire to form coils that are part of the electromagnetic circuit required to produce rotation. While copper is a very good conductor, it does have resistance that causes the copper to heat up. The amount of current delivered to the motor along with the winding resistance determines how hot it gets. The nature of stepper motor operation requires full rated current to be applied at all times, which differs from a servo motor that provides only the required current to produce the desired motion.

The performance benefits of direct-drive motors are well documented: industry-leading performance, improved accuracy, higher throughput, better reliability and quieter operations. This is because, unlike a conventional motion setup, a direct-drive system connects the rotary or linear motor directly to the load, reducing the number of moving parts in the system.

Compared to mechanical and hydraulic presses, mechanical servo metal stamping presses use high torque brushless motors to create more complicated stampings at faster speeds. But the type of motors used—a traditional geared or chain drive system or a direct drive motor—can dramatically impact the final product.

We are no longer settling for unsustainable. More than ever before, we are painfully aware that our ability – or inability - to act over the next few years will directly shape the lives of all future generations. And our best bet to step up to the challenge lies among the innovators – the ones who can adopt and apply new technology to truly transform the core of our society and create a world where we can thrive without the expense of our children.

Until recently, purchasing drives, motors, and cables from different suppliers was routine. The technology simplified the process of choosing the cables, and any installation technician was capable of choosing cables that met a specific application’s needs and installing them without causing any critical issues in the system.

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