What Is Servomotor and How It Works

Undoubtedly, Servomotors are one of the most commonly used drives for precision motion control applications. To learn what is a servomotor? How servomotor works, different servo types, and their various applications is crucial for anyone involved in this field. This article will delve into the servomotor basics, including a renowned Siemens Servomotor description, providing insights into their operation and common uses.

What Is a Servomotor?

Servomotors, often referred to as "servos," are electronic devices and actuators that provide precise rotary or linear motion control. They are employed to accurately position, control velocity, and manage acceleration in various applications.

Servomotors are highly favored by companies due to their compact size and remarkable power-generation capabilities, coupled with their exceptional energy efficiency. The primary user base for a servomotor consists of manufacturing companies. These companies rely on servomotors to achieve precise angular or linear positioning of control surfaces and the accurate rotation of objects over specified distances and angles. These motors are a crucial component in various other sectors, including robotics and aerospace.

Their adaptability and reliability continue to revolutionize industries and applications, solidifying their position as an indispensable component in the domain of precision control and automation.

How Servomotor Works?

The servomotor working principle is quite straightforward. It operates on the concept of feedback control. Its processing begins with the control unit receiving a specific setpoint value, which represents the desired position or speed of the servomotor's shaft.

When the electric motor is activated, it initiates the rotation of the output shaft. This shaft can be attached to various mechanical components or devices for precise control. As the motor operates, the feedback sensor continuously monitors the actual position or speed of the shaft.

The control unit constantly compares the actual position or speed with the desired setpoint value. If there is a discrepancy, the control unit will adjust the motor's operation to align the two values. This feedback loop ensures that the servomotor maintains the desired position or speed with exceptional accuracy.

Servo Motor Basics: The Components of a Servomotor

The servomotor's construction typically comprises an electric motor, gearbox, feedback sensor, and a control unit. Let's break down these components further:

●Electric Motor: This is the powerhouse of the servomotor, converting electrical energy into mechanical motion. It provides the initial rotation but may need speed reduction to match the application's requirements.

●Gearbox: The gearbox is used to adjust the speed of the motor's rotation, ensuring it aligns with the application's needs. It fine-tunes the output.

●Feedback Sensor (Potentiometer): The feedback sensor, often a potentiometer, measures the angle of rotation of the shaft, providing real-time data on the motor's position.

●Control Unit: The control unit processes the incoming setpoint values and feedback from the sensor. It makes real-time adjustments to the motor's operation to maintain precision.

What Are Servomotors Used For?

Servomotors find applications in various industries and fields, making them a versatile and valuable component. Here are some common uses of servos.

●Robotics: Servomotors are crucial in robotics, enabling precise control of the movement of robotic arms, legs, and other components. They help model various movements in robots.

●Automation Systems: In automation and control systems, servomotors are used to control the movement of conveyor belts, arms, and other machinery.

●Industrial Machinery: Servomotors are integrated into various industrial machines, including CNC machines, printing presses, and packaging equipment, to ensure precise and controlled movements.

●Aircraft Industry: The aircraft industry benefits from the energy-efficient and precise movement servomotor working principle, particularly in applications like flight control systems.

●Digital Interfaces: Modern servomotors, such as the Siemens servomotor, can be connected to digital interfaces like Profibus, PROFInet, and DeviceNet. This makes them suitable for use in a wide range of industrial systems controlled by machine intelligence.

Types of Servomotors

Here are some key classifications of different servo types:

●AC and DC Servomotors: These are categorized based on their working principle. An important factor to know while learning how to drive servomotors is that Servomotors are known for maintaining operation at low speeds, while DC servomotors allow for quick adjustments to the speed of rotation.

●Electromechanical and Electrohydromechanical Servomotors: The construction of servomotors can vary. Electromechanical servomotors rely on mechanical components, while electrohydromechanical ones incorporate hydraulic elements for specific applications.

●Analog and Digital Servomotors: Another classification depends on the method of data transmission. Analog servomotors use a specialized chip for control, while digital servomotors are equipped with microprocessors that can receive and analyze control signals at higher frequencies.

Digital servomotors, with their advanced microprocessors, offer more precise and flexible control over analog counterparts. They are better suited for applications that require rapid adjustments and fine-tuned control.

Siemens 1FT6084-8AF71-4UA0 Servomotor Description

At PLCTRONIC, we have a wide variety of servomotors in stock that are ready to ship, including popular models like the 1FT6084-8AF71-4UA0 AC servomotor from Siemens. It is suitable for applications requiring high torque density in confined spaces.

Servomotor Description: spare part SIMOTICS S synchronous servomotor 1FT6 20 Nm, 100K, 3000 rpm naturally cooled IM B5 (IM V1, IM V3) for power and signal connector outlet direction axial DE Resolver multi-pole (resolver P=4) with DRIVE-CLiQ interface With feather key, circular runout tolerance N without holding brake Vibration severity grade N Labyrinth seal (IP64)

Key Details:

−This is a spare part for the SIMOTICS S synchronous servomotor series

−The model number is 1FT6

−The torque rating is 20 Nm

−Maximum speed is 3000 rpm

−Resolver type and DRIVE-CLiQ interface included

−Naturally cooled design without holding brake

−Includes feather key and meets specified runout and vibration tolerances

−Labyrinth seal provides an IP64 degree of protection

PLCTRONIC: Your Trusted Partner for Servomotors & Other Industrial Spare Parts in PLC, Control & Automation Field

PLCTronic is your one-stop shop for a wide range of PLC, control, servomotor, and automation spare parts from leading manufacturers like Siemens, Heidenhain, Tyco, and more. With over 1,000 parts readily available in stock, you can purchase the spares you need with confidence and get them quickly.

We're also experts in repairs. Contact our team today to get a price quote for repairs, to know about various warranties/warranty periods, or any other parts servicing. Visit: https://plctronic.eu/