{"id":3630,"date":"2026-08-04T14:50:28","date_gmt":"2026-08-04T14:50:28","guid":{"rendered":"https:\/\/tsgroup.ir\/en\/?p=3630"},"modified":"2026-08-22T16:36:44","modified_gmt":"2026-08-22T16:36:44","slug":"types-of-yaskawa-servo-motors","status":"publish","type":"post","link":"https:\/\/tsgroup.ir\/en\/types-of-yaskawa-servo-motors\/","title":{"rendered":"Types of Yaskawa Servo Motors"},"content":{"rendered":"

Servo motors are key components in many industrial automation systems. These high-precision, high-performance motors work in conjunction with servo drives to provide accurate and controlled motion.<\/p>\n

As one of the leading manufacturers in industrial automation, Yaskawa offers a comprehensive range of servo motors designed for a wide variety of industrial applications. This article reviews the different types of Yaskawa servo motors, their key features, and their typical applications.<\/p>\n

Types of Yaskawa Servo Motors<\/h2>\n

Yaskawa servo motors are primarily AC permanent-magnet synchronous motors. They are classified according to motor configuration (rotary, direct-drive, and linear), rotor inertia, and product generation.<\/p>\n

AC Servo Motors<\/h3>\n

Advantages: <\/strong>High torque at low speeds, high positioning accuracy, long service life, precise speed and position control, and excellent dynamic response.<\/p>\n

Applications: <\/strong>Industrial robots, packaging machinery, CNC machine tools, medical equipment, semiconductor manufacturing equipment, and other high-precision automation systems.<\/p>\n

Major Series:<\/strong> Sigma-5, Sigma-7, and Sigma-X<\/p>\n

Key Features:<\/strong><\/p>\n

– Neodymium permanent magnets in the rotor for high magnetic flux density and compact motor design.<\/p>\n

High-resolution encoders, including 24-bit encoders in the Sigma-7 Series. –<\/p>\n

– Advanced vector control technology.<\/p>\n

High degree of protection (typically IP67) for demanding industrial environments –<\/p>\n

– Low-inertia and medium-inertia models, including SGM7A, SGM7J, SGM7G, and other variants.<\/p>\n

\"AC<\/h3>\n

Other Major Types of Yaskawa Servo Motors<\/h3>\n

Direct-Drive Servo Motors:<\/strong><\/p>\n

Gearless design that provides high torque at low speeds and eliminates mechanical backlash. Representative series include SGM7E, SGM7F, and SGM7D.<\/p>\n

Linear Servo Motors:<\/strong><\/p>\n

Deliver direct linear motion with high positioning accuracy and high-speed capability. Representative series include SGLG and iron-core linear motor models.<\/p>\n

– Note:<\/p>\n

Yaskawa\u2019s primary servo product portfolio is centered on brushless AC servo motors. DC servo motors and stepper motors are not part of the company\u2019s principal product lines.<\/p>\n

Yaskawa Servo Drives (SERVOPACK)<\/h3>\n

The servo drive is the control unit of the servo system and regulates motor speed, torque, and position. Yaskawa offers a broad range of SERVOPACK drives for various motion-control applications.<\/p>\n

Major Series:<\/strong> Sigma-7 (including the single-axis SGD7S and dual-axis SGD7W) and the Sigma-X Series.<\/p>\n

Key Features:<\/strong><\/p>\n

– Simplified commissioning and parameter adjustment, including Tuning-less operation and advanced auto-tuning.<\/p>\n

– Built-in filters for vibration suppression and noise reduction.<\/p>\n

– Support for industrial communication networks such as EtherCAT and MECHATROLINK.<\/p>\n

– Advanced functional safety features, including Safe Torque Off (STO) and support for safety levels up to SIL 3 \/ PL e.<\/p>\n

\"Yaskawa<\/h2>\n

Selecting the Right Servo Motor<\/h2>\n

Selecting the appropriate servo motor depends on several factors, including required torque, speed, positioning accuracy, load-to-motor inertia ratio, operating environment, and budget. The following parameters should be evaluated during servo motor sizing and selection:<\/p>\n

Torque<\/h3>\n

The torque required to move, accelerate, decelerate, and stop the load, including both continuous and peak torque requirements.<\/p>\n

Speed<\/h3>\n

The required maximum operating speed and motion profile.<\/p>\n

Accuracy<\/h3>\n

The required positioning accuracy and repeatability.<\/p>\n

Inertia Ratio<\/h3>\n

The ratio of load inertia to motor rotor inertia. A ratio below 10:1 is generally preferred, while ratios of up to 30:1 may be acceptable in certain applications.<\/p>\n

Operating Environment<\/h3>\n

Ambient temperature, humidity, vibration, dust exposure, and the required degree of protection, such as IP67.<\/p>\n

Budget<\/h3>\n

The initial cost of the servo motor and servo drive, together with associated installation, commissioning, and integration costs.<\/p>\n

\"Budget\"<\/h2>\n

Applications of Yaskawa Servo Motors<\/h2>\n

Yaskawa servo motors are widely used across a broad range of industrial applications, including.<\/p>\n

Robotics<\/h3>\n

Robotic arms, welding robots, packaging robots, and collaborative robots.<\/p>\n

Packaging Machinery<\/h3>\n

Filling machines and packaging equipment for food and pharmaceutical products.<\/p>\n

Medical Equipment<\/h3>\n

Medical imaging systems, surgical equipment, and laboratory automation systems.<\/p>\n

Automotive Industry<\/h3>\n

Automotive production lines, welding systems, painting systems, and testing equipment.<\/p>\n

Woodworking, Paper, and General-Purpose Machinery<\/h3>\n

Cutting machines, bending machines, workshop machinery, and material-handling equipment.<\/p>\n

Key Advantages of Yaskawa Servo Motors<\/h2>\n

High Precision: <\/strong>Exceptional and highly repeatable positioning accuracy powered by high-resolution encoders (24-bit and higher).<\/p>\n

High-Speed Dynamic Response:<\/strong> Rapid acceleration and deceleration backed by a high velocity loop bandwidth (up to 3.1 kHz and higher in newer generations).<\/p>\n

High Torque Density: <\/strong>Exceptional heavy-load handling capability with peak torque reaching up to 350%.<\/p>\n

Unmatched Reliability: <\/strong>Exceptional operational lifespan and proven stability, backed by millions of active field installations worldwide.<\/p>\n

Effortless Control: <\/strong>Simplified setup and parameter configuration utilizing advanced Tuning-less and Auto-tuning features.<\/p>\n

Comprehensive Technical Support: <\/strong>Global access to Yaskawa’s extensive after-sales service and technical support network.<\/p>\n

Installation and Commissioning of Yaskawa Servo Motors<\/h2>\n

Installation and commissioning of Yaskawa servo motors require qualified personnel and strict compliance with the manufacturer\u2019s instructions. The general procedure is as follows:<\/p>\n

Preparation and Mechanical Installation<\/h3>\n

Inspect all components before installation. Mount the motor correctly on the machine, ensuring proper shaft alignment and compliance with the specified bolt-tightening torque. Install the coupling or gearbox as required and verify proper mechanical alignment.<\/p>\n

Wiring and Electrical Connections<\/h3>\n

Connect the motor power cable, encoder cable, brake wiring if applicable, SERVOPACK main power supply, I\/O signals, and industrial communication network such as EtherCAT or MECHATROLINK. The specified connection sequence should be followed carefully, with the motor power connection completed before the encoder connection.<\/p>\n

Parameter Configuration Using SigmaWin+<\/h3>\n

Allow the servo drive to identify the connected motor automatically. Configure the basic parameters, including supply voltage, direction of rotation, torque limits, speed limits, and other application-specific settings. Perform Moment of Inertia Estimation when required.<\/p>\n

Trial Operation<\/h3>\n

Begin with a no-load JOG operation to verify the direction of rotation and basic servo system functionality. After successful verification, perform trial operation under the actual load conditions.<\/p>\n

Servo Tuning<\/h3>\n

Use the Tuning-less function, typically applied as the default setting, or perform Auto-tuning or Custom Tuning to optimize system response according to load inertia and machine dynamics.<\/p>\n

Control Program Implementation<\/h3>\n

Develop and test the motion-control program in the host controller, such as a PLC or Motion Controller.<\/p>\n

\"Control<\/h2>\n

Maintenance and Servicing of Yaskawa Servo Motors<\/h2>\n

Regular maintenance is essential to achieve reliable operation and extend the service life of the servo system. Key maintenance activities include:<\/p>\n

– Keep the motor surface free from dust, debris, and contamination.<\/p>\n

– Periodically inspect electrical and mechanical connections, including cables, connectors, and couplings.<\/p>\n

Check for abnormal noise, excessive vibration, or overheating. –<\/p>\n

– Inspect the encoder and feedback cable for damage or abnormal operation.<\/p>\n

– Replace the oil seal, where fitted, typically after approximately 5,000 operating hours.<\/p>\n

– Perform a general overhaul, including bearing replacement and related servicing, typically after approximately 20,000 operating hours or five years, depending on operating conditions.<\/p>\n

Important Note<\/h2>\n

Standard Yaskawa Sigma Series servo motors use grease-lubricated sealed bearings and generally do not require lubricant replacement by the user. Lubricating oil replacement is more commonly associated with gearboxes and industrial robots rather than the servo motor itself.<\/p>\n

Conclusion<\/h2>\n

Yaskawa servo motors are widely used in industrial automation due to their high positioning accuracy, fast dynamic response, suitable torque performance, and high reliability. Proper servo motor selection, correct installation, appropriate tuning, and regular maintenance help ensure optimum system performance and extended service life.<\/p>\n","protected":false},"excerpt":{"rendered":"

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