Month: January 2022

Functions of Stepper Motors

Stepper motors belong to the synchronous motors group. Compared to other motors, when powered, stepper motors try to keep the shaft position in a defined balanced condition. Basically, the movement is achieved from the rotation, by a magnetic field generated into the stator and by the relative rotor chase. Figure 1 shows two excitation phases …

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High Level Control of Stepper Motor

The key question to be answered by the high-level control system for a stepper motor is, when should the next step be taken? While this almost always depends on the application, the similarities between different applications are sufficient to justify the development of fairly complex general purpose stepper motor controllers. Stepper motor control may be …

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What is Torque for a Stepper Motor?

When you’re looking for a stepper motor, you’ll often see statistics related to torque. Torque information isn’t the only thing you’ll be looking at when it comes to selecting your motor, but it is important. Generally, you’ll be looking at information regarding how much torque the stepper produces under certain conditions. Before you start examining …

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How to Choose a Stepper Motor?

There are several factors to take into consideration when choosing a stepper motor for an application. Some of these factors are what type of stepper motor to use, the torque requirements of the system, the complexity of the controller, as well as the physical characteristics of the motor. The following contents focus on these considerations. …

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Why Using a Stepper Motor?

A stepper motor is an electromechanical system which is transducing an electrical signal into a mechanical one. It is designed to accomplish a discrete movement (notion of step) and reach a precise position. The movement is achieved through the use of a magnetic field provided by coils and sensed by magnets. Indeed, when one of …

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How to Measure Step Error?

This technical article describes the most accurate way to describe step error that is most meaningful to the step motor user. The traditional way to specify step accuracy is in the form of a percentage by taking the full step error divided by the fundamental step angle of the motor. Let’s understand this and see …

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How to Use a Stepper Motor Safely?

The following environmental and safety considerations must be observed during all phases of operation, service and repair of a stepper motor system. Failure to comply with these precautions violates safety standards of design, manufacture and intended use of the stepper motor, driver and controller. Please note that even a well‐built stepper motor products operated and …

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Basic Characteristics of Stepper Motors

An important point to consider in the application of stepper motors is whether the motor characteristics are suitable to the operating conditions. The following describes the characteristics to be considered in the application of stepper motors. The two main characteristics of stepper motor performance are: Dynamic Characteristics Speed – Torque Characteristics The figure above is …

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