The Yaskawa SGMPH-04AAA61D-OY is a high-performance AC brushless servo motor belonging to the esteemed Sigma II series. Engineered for compact spaces and high-dynamic response, this motor is a staple in precision manufacturing. With a rated output of 400W and operating on a 200V supply, it delivers a balance of torque and speed that is essential for modern automated machinery. The SGMPH series is specifically designed for applications requiring a high power-to-size ratio and exceptional reliability. This motor features a low-inertia rotor design, allowing for rapid acceleration and deceleration cycles. The high-energy permanent magnets ensure stable torque delivery across the entire speed range. Its mechanical integrity is reinforced by high-quality bearings and a robust shaft design capable of handling radial and axial loads common in belt-driven or gear-coupled systems. The internal winding is optimized to minimize cogging torque, resulting in smoother motion at low speeds. Precise positioning is facilitated by the integrated high-resolution serial encoder. This feedback system communicates directly with Yaskawa SERVOPACK drives, providing real-time data on position and velocity. The "OY" suffix in the model code indicates specific factory configurations tailored for seamless integration within standardized control loops, ensuring that the motor maintains its accuracy even under varying load conditions. The serial interface reduces wiring complexity while enhancing signal immunity against electromagnetic interference. The SGMPH-04AAA61D-OY is built to withstand industrial environments, featuring an enclosure that prevents the ingress of dust and moisture. Its thermal management system is designed for continuous duty operation, utilizing the motor's exterior surface for efficient heat dissipation. Compliance with international standards ensures that this motor can be integrated into global production lines, supporting the high-uptime requirements of industries such as electronics assembly and specialized packaging.High-Performance Sigma II Technology
Mechanical Construction and Dynamics

Encoder Feedback and Control Precision
Environmental Protection and Standards



