Yaskawa SGMPH-04AAA61D-OY Sigma II Servo Motor

The Yaskawa SGMPH-04AAA61D-OY is a compact, low-inertia AC servo motor from the acclaimed Sigma II Series. This 400W servo motor delivers excellent power-to-size performance, operating at a rated speed of 3000 RPM with a rated torque of 1.27 Nm. The SGMPH series is specifically designed for dynamic applications requiring high-speed response, frequent acceleration and deceleration, and precise stopping capabilities. The motor features an integrated electromagnetic brake, making it particularly suitable for vertical axis applications and systems where load holding during power-off conditions is required.

Technical Specifications

Key Features and Benefits

• Low-Inertia Rotor Design: Enables extremely rapid acceleration and deceleration for dynamic positioning applications.

• High-Speed Operation: 3000 RPM rated speed provides excellent throughput in high-cycle applications.

• Integrated Electromagnetic Brake: Maintains position when power is removed, essential for vertical axis and safety-critical applications.

• Compact Form Factor: Space-efficient design minimizes machine envelope requirements.

• High-Resolution Feedback: 13-bit incremental encoder provides precise position and velocity feedback.

• Proven Sigma II Reliability: Based on Yaskawa's legacy Sigma II product family with established reputation for dependable performance.

Functional Overview

The SGMPH-04AAA61D-OY is designed as a high-performance motion control component for applications requiring rapid positioning and frequent start-stop cycles. The low-inertia rotor minimizes mechanical time constants, allowing the motor to accelerate quickly to commanded speeds and decelerate rapidly when positioning is complete. The built-in electromagnetic brake provides fail-safe load holding, engaging automatically when motor power is removed. The 13-bit incremental encoder generates 8192 pulses per revolution, providing the feedback resolution needed for precise speed regulation and position control when paired with a compatible Sigma II servo driver.

Compatibility and Integration

The SGMPH-04AAA61D-OY is designed for use with Yaskawa Sigma II series servo drivers, particularly the SGDH-04AE series. The motor's encoder connects to the driver via a dedicated feedback cable, while the electromagnetic brake requires a separate 24 VDC control circuit that should be managed by the servo driver or PLC output. Integration into motion control systems typically involves mounting the motor to the load, connecting power and feedback cables to the driver, and configuring driver parameters to match the motor's characteristics. The motor's compact size makes it suitable for installation in space-constrained machinery.

Installation and Configuration

Installation of the SGMPH-04AAA61D-OY requires careful attention to mechanical alignment and electrical connections. The motor mounts to machinery using through-bolts, with proper shaft coupling to prevent misalignment that could cause premature bearing failure. Power connections must be made according to the driver's specifications, with properly sized conductors and appropriate shielding for noise-sensitive applications. The electromagnetic brake requires a separate 24 VDC power source and should be controlled to release only when the driver is ready to apply torque. Grounding and cable management practices should follow Yaskawa's recommendations to minimize electrical noise.

Maintenance and Reliability

The SGMPH-04AAA61D-OY is designed for long-term reliable operation with minimal maintenance. The motor utilizes sealed bearings that do not require periodic lubrication. The electromagnetic brake should be inspected periodically for proper operation, especially in applications involving frequent braking cycles. The motor's exterior should be kept clean and free from debris that could impede cooling airflow. When operated within its rated specifications, the SGMPH-04AAA61D-OY provides years of dependable service in demanding industrial environments. The Sigma II product family's proven track record attests to the reliability of this servo motor design.

Conclusion

The Yaskawa SGMPH-04AAA61D-OY servo motor combines low-inertia design, high-speed capability, and integrated braking to meet the demanding requirements of dynamic motion control applications. With its 400W power rating and 3000 RPM speed, this motor provides an excellent balance of power and responsiveness for high-cycle automation. As part of the established Sigma II series, the SGMPH-04AAA61D-OY benefits from Yaskawa's extensive motion control expertise, delivering reliable performance for a wide range of industrial applications.