Yaskawa SGMGH-09DCA6H-OY 850W AC Servo Motor with Holding Brake
The Yaskawa SGMGH-09DCA6H-OY is a high-performance AC servo motor from the Sigma II series, designed for precision motion control in industrial automation applications. This motor delivers 850 watts of output power and operates on 400V AC three-phase power, providing reliable torque and speed control for demanding applications such as machine tools, industrial robotics, packaging machinery, and material handling equipment. The SGMGH-09DCA6H-OY features an integrated 24V DC holding brake, providing position holding capability when power is removed, essential for vertical axis applications or any system requiring stationary load holding.
Product Specifications
Model: SGMGH-09DCA6H-OY AC Servo Motor
Series: Sigma II Series
Rated Output Power: 850 Watts (0.85 kW)
Rated Speed: 1500 rpm
Supply Voltage: Three-phase 400V AC
Rated Current: 3.5 A
Encoder: Absolute encoder for position feedback
Brake: Integrated 24V DC holding brake
Shaft Configuration: Straight shaft with screw
Protection Rating: Appropriate for industrial environments
Sigma II Series Motor Technology
The SGMGH-09DCA6H-OY is part of Yaskawa's Sigma II series, a family of AC servo motors known for high torque density, fast response, and reliable operation. The Sigma II series incorporates advanced magnetic circuit design and high-energy permanent magnets to deliver exceptional torque output relative to motor size. The motor construction is optimized for industrial environments, with sealed bearings and robust housing that resists dust, moisture, and vibration. The Sigma II series is designed to be paired with Yaskawa SGDH series SERVOPACKs, forming complete servo systems for precision motion control.
Integrated 24V DC Holding Brake
The SGMGH-09DCA6H-OY includes an integrated 24V DC holding brake, which is essential for applications where the motor must maintain position when power is removed. The brake engages when power is de-energized, holding the motor shaft against external loads. This feature is particularly important for vertical axes such as lifting mechanisms, crane hoists, and elevator drives, where gravity would otherwise cause the load to move when power is removed. The brake is also valuable for holding rotary tables, indexing mechanisms, and any system that must maintain position during power interruptions or maintenance.
400V High-Voltage Operation
The SGMGH-09DCA6H-OY operates on three-phase 400V AC power, making it suitable for applications in regions with 400V industrial power distribution. High-voltage operation reduces current requirements compared to lower-voltage systems, enabling smaller cable sizes and reducing power losses in long cable runs. The 400V design is particularly advantageous for large machinery, distributed systems, and applications requiring high power at the motor. The motor is compatible with Yaskawa SGDH SERVOPACKs designed for 400V input, providing matched performance and simplified system integration.
Rated Speed and Torque Characteristics
The motor delivers rated output of 850W at a rated speed of 1500 rpm. This speed rating makes it suitable for applications requiring moderate rotational speeds with good torque output. The torque characteristics provide high starting torque for accelerating loads, with smooth torque output across the speed range. The continuous duty rating allows the motor to operate indefinitely at rated conditions without overheating, while intermittent overload capability handles short-term peak torque demands during acceleration or heavy load conditions.
Absolute Encoder Feedback
The SGMGH-09DCA6H-OY incorporates an absolute encoder for precise position and speed feedback. Absolute encoders provide the exact motor shaft position immediately upon power-up, eliminating the need for homing sequences that are required with incremental encoders. This absolute position capability reduces machine cycle times and simplifies safety integration. The encoder provides high-resolution feedback for smooth operation at low speeds and accurate positioning. The absolute encoder data is used by the SERVOPACK for closed-loop control of motor torque, speed, and position.
Mechanical Construction and Shaft Configuration
The motor features a straight shaft with screw thread for secure coupling to load machinery. The shaft configuration allows mounting of pulleys, gears, couplings, or other power transmission components using standard shaft mounting hardware. The shaft is designed to withstand the radial and axial loads typical of industrial applications. The motor housing provides mounting points for secure attachment to machine frames, with standard bolt patterns compatible with common mounting configurations. The mechanical construction is designed for long service life in demanding industrial environments.
Compatibility with SGDH SERVOPACKs
The SGMGH-09DCA6H-OY is designed for use with Yaskawa SGDH series SERVOPACKs, which provide the power conversion and control functions required for motor operation. The SERVOPACK accepts control signals from a PLC or motion controller, amplifies them to drive the motor, and processes encoder feedback for closed-loop control. The motor and SERVOPACK are matched for optimal performance, with motor parameters stored in the SERVOPACK for automatic configuration. This matched system simplifies commissioning and ensures reliable operation.
Industrial Applications
The SGMGH-09DCA6H-OY servo motor is deployed across numerous industrial automation applications requiring precision motion control. In machine tools, it drives feed axes for milling, turning, and grinding operations, providing the accuracy and repeatability required for precision machining. In robotics, it powers joint motion and end-effector positioning, delivering the torque and speed needed for dynamic motion. In packaging machinery, it drives rotary cutters, indexing tables, and material handling mechanisms. In material handling, it powers conveyor drives, transfer systems, and automated storage and retrieval equipment.
Vertical Axis Applications with Holding Brake
The integrated holding brake makes the SGMGH-09DCA6H-OY particularly suitable for vertical axis applications. In lift and hoist systems, the brake holds the load when the motor is not powered, preventing unwanted descent. In robot arm applications, the brake holds the arm position when power is removed, maintaining safety and preventing collision with nearby equipment. In machine tools, the brake holds the spindle or axis position during power interruptions, preserving workpiece position for resumption of machining. The brake engages automatically when motor power is removed, providing fail-safe holding without additional control logic.
Environmental and Mechanical Ratings
The SGMGH-09DCA6H-OY is designed for reliable operation in industrial environments. The motor meets protection ratings appropriate for installation in machine enclosures and control cabinets. The operating temperature range accommodates typical factory conditions, with the motor capable of dissipating heat generated during continuous operation. The motor construction resists dust, moisture, and vibration common in manufacturing facilities. The sealed bearing design extends service life by preventing contamination of internal components.
Standards and Compliance
Yaskawa Sigma II series servo motors comply with CE marking for European markets, confirming conformity with electromagnetic compatibility and low voltage directives. The motors meet applicable industrial standards for rotating electrical machinery. The products are manufactured under Yaskawa's quality management systems, ensuring consistent product reliability and performance.
Conclusion
The Yaskawa SGMGH-09DCA6H-OY AC servo motor delivers 850W of precision motion control with 400V operation, integrated holding brake, and absolute encoder feedback. Its robust construction and compatibility with SGDH SERVOPACKs make it a reliable choice for industrial automation applications requiring accurate torque, speed, and position control.
