Stable Performance New AC Servo Motor YASKAWA SGM7A-10A7A61 for the Industrial Machinery

YASKAWA SGM7A-10A7A61 AC Servo Motor – 1 kW Class Drive for Demanding Industrial Motion

The YASKAWA SGM7A-10A7A61 is a 1 kW class AC servo motor from the Sigma-7 family, designed for demanding axes where high torque density, fast dynamic response, and excellent positioning accuracy are required. This model is well suited for main axes in packaging lines, woodworking and metalworking machines, high-speed handling systems, robotics, and other automation equipment that must run with high productivity and stable quality over long operating hours.

Technical Overview – YASKAWA SGM7A-10A7A61

Note: Power and dimensional data above are representative for the SGM7A-10A7A61 class. Final design and safety decisions must always be based on the official YASKAWA documentation.

1. Position of SGM7A-10A7A61 in the Sigma-7 Range

Within the Sigma-7 lineup, the SGM7A-10A7A61 occupies a key role as a 1 kW class workhorse motor. It offers significantly more torque than small auxiliary axes, while remaining compact enough to fit into tight machine frames. This makes it ideal for:

• Main feed axes in mid-size packaging and forming machines

• High-speed positioning axes in assembly and material handling lines

• Moderate-load rotary tables and index devices

• Gantry and Cartesian robots where one or more axes require higher torque

Machine builders who standardize on Sigma-7 technology can use the SGM7A-10A7A61 as the primary drive for the most critical motion axes and combine it with smaller SGM7A motors for secondary motions, keeping a unified ecosystem across the entire machine.

2. Motion Performance and Control Behavior

The YASKAWA SGM7A-10A7A61 is designed to deliver precise and repeatable motion under demanding operating conditions.

High Dynamic Torque and Fast Cycles

The 1 kW class rating allows the motor to generate substantial torque for acceleration and deceleration:

• Rapid speed changes shorten positioning and indexing times

• Machines can reach target throughput with fewer mechanical compromises

• High peak torque supports short overloads during start-up or process disturbances within the specified limits

When integrated correctly, this dynamic behavior enables higher machine output without sacrificing control quality.

Precision Positioning Capability

The built-in high-resolution encoder, working together with Sigma-7 control algorithms, provides:

• Accurate absolute and incremental positioning

• Tight trajectory following under interpolated motion profiles

• High repeatability even under varying process forces

This precision is crucial in machine tools, cutting and forming applications, and quality-critical assembly operations where even small position errors can affect product quality.

Smooth Operation Across the Speed Range

The SGM7A-10A7A61 is designed for smooth torque generation over its operating speed range:

• At low speed, stable rotation supports processes such as slow feeds, probing, and measurement moves.

• At medium and high speed, minimized torque ripple helps maintain surface finish quality in machining and consistent registration in packaging and printing systems.

The result is a motor that combines strong torque with refined motion behavior, suitable for both heavy moves and fine positioning.

3. Mechanical Design and Integration Advantages

The SGM7A-10A7A61 mechanical design supports straightforward integration into new machines or retrofit projects.

Flange and Shaft Geometry

• Flange mounting follows typical industrial servo dimensions, letting designers mate the motor directly with gearboxes, linear actuators, or custom brackets.

• The straight shaft simplifies coupling to ball screws, timing pulleys, gear sets, and other drive elements.

This reduces the need for custom mechanical parts, shortens development time, and keeps maintenance simple.

Compact Housing with High Power Density

Despite its 1 kW class capability, the SGM7A-10A7A61 maintains a relatively compact frame:

• Easier to install in crowded machine layouts

• Allows two or more axes to be placed closer together in multi-axis modules

• Reduces moving mass on axes such as vertical sliders or gantry beams

For machine builders focused on space optimization, this power density is a significant benefit.

Industrial-Grade Bearings and Robust Construction

The motor is built for continuous service in industrial environments:

• Bearings are selected for long life under proper loading and alignment

• Rotor and stator construction are optimized to withstand mechanical vibration within specified limits

• When installed correctly, the motor provides long operating life with predictable performance characteristics

4. Electrical and System Integration with Sigma-7 SERVOPACK

The YASKAWA SGM7A-10A7A61 is intended to be paired with Sigma-7 SERVOPACK servo amplifiers, forming a complete motion system platform.

Servo Drive Matching

Sigma-7 drives contain predefined parameters and motor models for the SGM7A series:

• Correct pairing ensures optimal torque utilization and protection functions

• Automatic tuning can identify the connected motor and mechanical load, drastically reducing startup time

• Unified parameter structures simplify handling of multiple axes in the same control system

Encoder Feedback and Control Loops

The high-resolution encoder on the SGM7A-10A7A61 feeds back fine position information to the drive:

• Enables advanced current, speed, and position loops

• Supports synchronous motion, electronic gearing, and cam profiles

• Improves disturbance rejection when the axis is subjected to process forces or varying loads

This feedback quality is a key element behind the precise motion characteristics of the motor.

Networking and PLC Integration

Different variants of Sigma-7 SERVOPACKs support industrial communication interfaces such as EtherCAT, MECHATROLINK, and other fieldbuses (depending on the drive model):

• Allows the SGM7A-10A7A61 to be integrated into modern PLC, motion controller, or PC-based systems

• Simplifies coordinated multi-axis motion control and data exchange

• Facilitates diagnostic and monitoring functions at the controller level

5. Example Application Areas

Due to its balance of power, size, and precision, the SGM7A-10A7A61 is widely applicable.

Packaging and Converting Machines

• Main feed axes for film, foil, or paper

• Rotary cutting, sealing, and punching units

• Registration control for labels and printed marks

In these systems, the motor’s dynamic response and precision directly influence line speed and product consistency.

Machine Tools and Processing Equipment

• Feed axes on small and medium machine tools

• Rotary positioning for index tables and tool turrets

• Auxiliary axes that still require high stiffness and accuracy

The combination of torque and smooth operation supports high quality surfaces and repeatable dimensions.

Robotics and Handling Systems

• Gantry axes handling heavier payloads

• Vertical axes with counterbalance or brake options

• Rotary joints in modular robots with higher torque demands

The SGM7A-10A7A61 helps achieve required cycle times while maintaining path accuracy.

Assembly and Testing Machines

• Positioning units for fixtures and test heads

• Press-fit motions and forming operations with controlled force and position

• Flexible assembly platforms that require both speed and accurate repeatability

6. Benefits for OEMs and End Users

Selecting the YASKAWA SGM7A-10A7A61 as the main motor for critical axes offers a number of strategic advantages.

• Unified Servo Platform
  Using SGM7A motors and Sigma-7 drives across a machine reduces engineering complexity, spare parts inventory, and training effort.

• High Availability and Support
  As part of a widely adopted product family, the SGM7A-10A7A61 is supported by YASKAWA’s global network of distributors, service centers, and application engineers.

• Stable Long-Term Performance
  When used within specified limits, the motor delivers consistent behavior over its service life, helping maintain machine output and quality.

• Scalability and Machine Variants
  OEMs can easily create machine variants with different performance levels using the same platform, simply choosing different SGM7A power sizes while keeping the same control architecture.

7. Installation, Commissioning, and Maintenance Notes

Correct application of the SGM7A-10A7A61 is essential to gain its full performance benefits.

Mechanical Installation

• Mount the motor on a rigid, flat surface to avoid stress on the housing and bearings.

• Align the shaft carefully with the driven element. Excessive misalignment can reduce bearing life and increase vibration.

• Use suitable couplings or gear interfaces rated for the torque and speed of the motor.

Environmental and Thermal Conditions

• Respect specified ambient temperature and humidity limits given in the official documentation.

• Ensure airflow around the motor is not blocked; natural cooling relies on exposed housing surfaces.

• In dusty, oily, or humid environments, apply appropriate sealing and protective enclosures.

Electrical Setup and Tuning

• Use YASKAWA-recommended cables and follow grounding and shielding guidelines to minimize electrical noise.

• Select the correct motor model (SGM7A-10A7A61) in the Sigma-7 SERVOPACK parameter set.

• Perform automatic tuning, then verify operation and adjust settings if necessary for the mechanical structure and desired motion profile.

Ongoing Inspection

• Periodically check connectors, cables, and mounting bolts for looseness or wear.

• Monitor temperature and listen for unusual noise during operation.

• Address mechanical overload, misalignment, or abnormal process conditions promptly to avoid damage to the motor or drive.

8. Summary

The YASKAWA SGM7A-10A7A61 AC servo motor is a powerful, precise, and reliable 1 kW class solution in the Sigma-7 family. It is designed for high-demand axes in packaging, machine tools, robotics, handling equipment, and many other automation systems where strong torque, fast dynamics, and excellent positioning accuracy are mandatory.

By combining the SGM7A-10A7A61 with Sigma-7 SERVOPACK drives and modern control architectures, OEMs and system integrators can build machines that deliver high throughput, stable quality, and long-term reliability, while keeping engineering, commissioning, and maintenance under control.