One of the electromagnetic principles that governs the operation of an electric motor is Faraday’s law, which states that when the magnetic environment of a coil of wire is changed — whether by moving the magnet and coil relative to each other or by changing the magnetic field — a voltage, or electromotive force (EMF), will […]
Stepper Motors
What are double- and triple-stack hybrid stepper motors ?
Of the three primary stepper motor designs — permanent magnet, variable reluctance, and hybrid — hybrid stepper motors are arguably the most popular in industrial applications, combining the best performance characteristics of permanent magnet and variable reluctance types. Hybrid stepper motors are constructed with a rotor made of two sections, or cups, with a permanent […]
Triad of torque, speed and precision applications
Many applications require drive solutions that have a central opening through which, e.g., light, cables or parts of the application can be guided. Examples of this can be found in optics and photonics for laser steering systems or in automation and robotics for semiconductor handling systems. Until now, conventional systems always resulted in compromises here. […]
Comparing three types of stepper and servomotor power supplies
In a recent online article, Teknic engineers have outlined how dc-powered motion-control applications differ from most other dc-powered designs … and how the motors in these applications need specialty power supplies. The article focuses on dc power supplies, which are the most common and suitable for fractional-horsepower motors. What makes dc motion-control applications unique are their […]
Four axis stepper controller for automation applications
One of the latest products to be released by Allmotion is their EZ4Axis23WV stepper motor controller driver, which runs four fully independent stepper motors using fully intelligent stepper motor controller circuitry. This four-axis position controller with power drivers features programmable acceleration ramps and speeds using four independent 1 Amp (2 Amp peak) PWM chopper drives. […]
Motion-control systems help automate COVID-19 testing
Automated biochemical analyzers vastly accelerate the testing of patient samples in laboratories, which has become critical now that the COVID-19 pandemic has spread across the globe. Advanced automation with motor-based motion systems will help in the fight to hasten diagnosis. Just consider the cobas 6800 and 8800 machines from Roche that automate testing of nasopharyngeal […]
IP65-rated step motors for wet, dusty industrial factory environments
Applied Motion Products offers an extended line of stepper motors with IP65 ratings that are dustproof and resistant to water pressure impact, making them suitable for use in wet and dusty applications. Using advanced seal protection technology, the IP65-rated step motors feature sealed laminations, an oil shaft seal, internal corrosion-resistant film coating, gaskets for mechanical […]
High bus voltage stepper drives and motors from AutomationDirect
AutomationDirect has added a high voltage ac drive and compatible high torque motors to its stepping system motion control product offering. The ac stepper drive is powered from 90 to 240 Vac and is intended for use with step motors designed to handle a high bus voltage of 340 Vdc. MTRAC motors are specially designed […]
MOONS project astronomers use motion technology from FAULHABER
When it comes to exploring our disc-shaped spiral galaxy, astronomers have a fundamental problem: Earth is located on the disc of the Milky Way, which obstructs the view of the galaxy’s center (and its other side) with countless stars. So determining where on the disc other celestial bodies are located is difficult to impossible from […]
What is a constant voltage drive for a stepper motor and when is it used?
There are two fundamental types of stepper motor drives: constant voltage drives, which supply a fixed voltage to the motor, and constant current drives, which manipulate voltage to ensure that a constant current is delivered to the motor. Stepper motor electrical basics The most fundamental equation governing the behavior of a stepper motor is Ohm’s law, […]
