Achieve precise motion control, fast response, and stable performance with advanced AC servo drives designed for efficient and reliable industrial automation.
Explore a range of AC servo drive and motor series designed to meet different performance requirements, from standard automation to high-precision motion control systems.
The E3 series is designed for flexible deployment across different machine sizes, offering balanced performance and reliability.
The B3 series provides reliable and cost-effective motion control for a wide range of industrial applications.
The E5 series offers similar high-performance capabilities with flexible integration options, making it suitable for advanced industrial environments.
Designed for high-performance applications, the B5 series delivers advanced motion control capabilities with high torque output and enhanced system integration.
An AC servo drive is a control device designed to manage AC servo motors with high precision. By continuously monitoring and adjusting torque, speed, and position through a feedback loop, it ensures accurate and reliable motion control. AC servo drives are critical for high-speed, high-accuracy machinery, enabling smooth operation in applications such as robotics, CNC machines, packaging systems, and industrial automation lines, where precise positioning and responsive control are essential for optimal performance and efficiency.
AC servo drives offer precise, responsive, and efficient motor control, making them ideal for modern industrial automation and high-performance machinery.
Ensure accurate positioning, smooth acceleration, and consistent speed, critical for applications requiring high precision and repeatability.
Deliver fast response times and excellent torque control, supporting rapid movements and complex motion profiles in demanding production environments.
Optimise power usage with intelligent feedback and control, reducing energy consumption and operating costs.
Available in space-saving designs with adaptable configurations, making them suitable for varied machinery layouts and installation requirements.
When selecting an AC servo drive, key features and specifications ensure reliable performance, precise control, and system compatibility across industrial applications.
Choose drives that match your motor’s voltage and power requirements to ensure optimal performance and prevent overloads.
Ensure the drive supports encoder or resolver feedback for accurate position, speed, and torque monitoring.
Look for drives with standardised communication protocols such as RS485, Modbus, or EtherCAT for seamless integration into your automation system.
Drives should include overcurrent, overvoltage, and thermal protection, ensuring safe, reliable, and long-lasting operation in industrial environments.
AC servo drives operate using a closed-loop control system, where the servo motor’s position, speed, and torque are continuously monitored via feedback. The drive regulates power to the motor based on this feedback, ensuring precise and responsive motion. Unlike open-loop systems, this continuous adjustment enables accurate positioning and smooth operation, making AC servo drives essential for high-precision machinery, robotics, and automation applications where reliability and exact motion control are critical.
The Controller (PLC or CNC) sends a target command (position, speed, or torque) to the Servo Drive.
The Servo Drive translates that command into electrical power, sending it to the motor to initiate movement.
As the Motor moves, a built-in Encoder (sensor) tracks the actual real-time position and speed.
The Encoder sends this data back to the Drive. The Drive compares the actual position to the commanded position and instantly adjusts the power to eliminate any error.
AC servo drives are widely used across high-precision industrial machinery and multi-axis motion systems, including:
Understanding the differences between AC servo drives, VFDs (inverters), and stepper drives helps engineers select the right solution for their application. Here’s a concise comparison:
High
supports accurate positioning and multi-axis coordinationModerate
mainly controls motor speed rather than position
Moderate
precise in open-loop steps but limited under load
Excellent
fast acceleration and deceleration, smooth motion
Good
suitable for variable-speed applications, less precise than servo
Limited
slower, prone to missed steps at high speeds
Higher
advanced control and feedback systems increase price
Moderate
less expensive than AC servo for similar power ranges
Low
budget-friendly for simple motion tasks
Yes
closed-loop control via encoder or resolver
Optional
can operate open-loop, but closed-loop improves performance
Generally No
operates open-loop, though closed-loop versions exist
Moderate
mainly controls motor speed rather than position
Good
suitable for variable-speed applications, less precise than servo
Moderate
less expensive than AC servo for similar power ranges
Optional
can operate open-loop, but closed-loop improves performance
Moderate
precise in open-loop steps but limited under load
Limited
slower, prone to missed steps at high speeds
Low
budget-friendly for simple motion tasks
Generally No
operates open-loop, though closed-loop versions exist
Selecting the right AC servo drive ensures optimal performance, reliability, and compatibility in your motion control system.
Ensure the drive matches the motor’s voltage, current, and power ratings to achieve precise and efficient operation.
Consider the communication protocols, control interfaces, and multi-axis integration needed for your automation system.
Evaluate ambient conditions, space limitations, and cooling requirements to select a drive that fits your installation and industrial environment.
Find quick answers to common questions to help you better understand AC servo drives and choose the right solution for your application.
AC servo drives offer high precision, fast dynamic response, and closed-loop control, making them ideal for multi-axis, high-accuracy applications that stepper drives or VFDs cannot handle as efficiently.
Yes. They are designed for synchronised control across multiple axes, ensuring accurate and coordinated motion in robotics, CNC machines, and automated assembly lines.
Most AC servo drives use encoders or resolvers to provide real-time position, speed, and torque feedback, enabling precise closed-loop control.
Check the motor’s voltage, current, power ratings, and feedback type, and confirm that the drive supports the required control interface and communication protocol for seamless integration.
An AC servo drive controls the speed, position, and torque of a motor with high accuracy. It is commonly used in automation systems such as CNC machines, robotics, and production lines where precise motion control is required.
The B5/E5 series typically offers higher performance, faster response, and more advanced features suitable for complex or high-precision applications. The B3/E3 series is designed for more general use, providing reliable performance for standard automation tasks.
Consider factors such as required torque, speed, precision level, load conditions, and system compatibility. It is also important to match the servo drive with the appropriate motor and ensure it supports your control system and communication needs.
Most modern AC servo drives support common industrial communication protocols such as Modbus, EtherCAT, CANopen, and Ethernet/IP. They allow seamless integration with automation systems.
Yes, AC servo drives are designed for high-precision control. They are widely used in applications that require accurate positioning and smooth motion, such as robotics, semiconductor manufacturing, and precision machining.
Looking for detailed specifications, configurations, or pricing for our AC servo drive series?
Access the full product details and find the right solution for your application.
At YT Automation Singapore Pte Ltd, we offer a diverse range of automation products designed to optimize performance and enhance productivity across industries.
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