The Yaskawa SGMGH-09DCA6F-OY is a high-performance AC servo motor from the industry-leading Sigma II Series. This servo motor delivers 850 watts of rated output power and operates on 400 VAC power, making it an excellent choice for applications requiring moderate power with high dynamic performance. The SGMGH series is distinguished by its high inertia design, which provides exceptional torque output and stiffness for demanding motion control applications. With a rated speed of 1500 RPM and a rated torque of 5.39 Newton-meters, this motor offers the performance characteristics required for precision positioning in industrial automation systems.
| Specification | Detail |
|---|---|
| Product Series | Sigma II (SGMGH Series) |
| Product Type | AC Servo Motor |
| Rated Output Power | 850 W (0.85 kW) |
| Rated Torque | 5.39 Nm |
| Rated Speed | 1500 RPM |
| Rated Current | 3.5 A |
| Supply Voltage | 400 VAC, Three-Phase |
| Encoder Type | High-Resolution Serial Encoder |
| Encoder Resolution | 8192 P/R Incremental 20-bit Absolute (standard) |
| Insulation Class | F |
| Motor Outside Diameter | 135 mm |
| Shaft Type | Straight Shaft with Key and Tap |
High Inertia Design: Provides exceptional torque output and system stiffness for demanding motion profiles.
High-Resolution Feedback: 20-bit absolute encoder provides precision positioning with 1,048,576 pulses per revolution resolution.
Reinforced Shaft Construction: Enhanced shaft design increases stiffness and torque transmission capacity.
Optimized Electromagnetic Circuit: Delivers low-speed high-torque output and micro-meter positioning accuracy.
High Reliability: Built to withstand rigorous industrial operating conditions.
Seamless Sigma II Integration: Fully compatible with Yaskawa SGDH and SGD7S series servo drives.
The SGMGH-09DCA6F-OY operates as the mechanical power source in precision motion control systems. The motor converts electrical energy from a servo driver into rotational mechanical energy, with the encoder providing continuous position and velocity feedback for closed-loop control. The high inertia rotor design provides enhanced rotational stability, making this motor particularly well-suited for applications requiring smooth motion at moderate speeds with high load-to-motor inertia ratios. The motor's electromagnetic design balances high torque output with efficient operation, reducing heat generation while maintaining performance.
The SGMGH-09DCA6F-OY is specifically designed for use with Yaskawa Sigma II series servo drivers, including SGDH and SGD7S models. Integration into a motion control system requires matching the motor to a compatible driver of appropriate power rating. The motor's high-resolution serial encoder connects to the driver through a dedicated feedback cable, providing the precise position information needed for advanced servo control algorithms. For applications requiring enhanced functionality or communication with newer control architectures, the motor can be paired with SGD7S drivers that support EtherCAT and other industrial networks.

The Yaskawa SGMGH-09DCA6F-OY is ideal for demanding motion control applications:
Heavy-duty CNC machining centers and milling machines
Precision press machinery and stamping equipment
Industrial robotics and articulated arm systems
High-torque positioning tables and rotary axes
Plastic injection molding machines
Extrusion and compounding equipment
Wind turbine pitch control systems
Proper installation of the SGMGH-09DCA6F-OY requires attention to mechanical mounting, electrical connections, and environmental considerations. The motor mounts to machinery using, with careful attention to shaft alignment to prevent premature bearing wear. Electrical connections include power leads for the motor windings and a feedback cable connecting to the servo driver's encoder port. Shielded cables and proper grounding practices are essential to minimize electromagnetic interference. The motor should be installed in a location that provides adequate ventilation for cooling, with ambient temperature maintained within specified limits.
The SGMGH-09DCA6F-OY is designed for long-term reliability with minimal maintenance requirements. The motor uses maintenance-free bearings and does not require regular lubrication. Periodic inspection should include checking for unusual noise or vibration during operation, verifying that mounting bolts remain tight, and monitoring motor temperature under load. The encoder's absolute position memory is maintained without battery backup, simplifying startup after power interruption. When properly applied within its torque and speed ratings, the SGMGH-09DCA6F-OY provides many years of reliable service.
The Yaskawa SGMGH-09DCA6F-OY represents a capable and reliable servo motor solution for applications requiring high torque and precision positioning. As part of the Sigma II series, this motor benefits from Yaskawa's extensive experience in motion control technology, delivering the performance characteristics essential for demanding industrial applications. With its 850W output power, high-resolution feedback, and robust construction, the SGMGH-09DCA6F-OY provides an excellent foundation for precision motion control systems.



