YASKAWA SGMPH-04AAA61D-OY 200V 400W Servo Motor

The YASKAWA SGMPH-04AAA61D-OY is a 400-watt AC servo motor from the renowned Sigma II series, designed for precision motion control in industrial automation systems. This 200V class motor combines compact size with high torque density, making it suitable for applications where performance and space efficiency are critical requirements. The -OY designation indicates specific options and customizations for the particular application, including shaft configuration and connection arrangements.

Product Overview

The SGMPH series represents Yaskawa's Sigma II generation of AC servo motors, which established new standards for performance and reliability in the motion control industry. The SGMPH-04AAA61D-OY is rated at 400W output power and operates on a 200V AC power supply, making it compatible with standard industrial power systems worldwide. The motor is designed for use with Yaskawa SGDH series servo amplifiers, forming a complete Sigma II servo system. The Sigma II series documentation provides comprehensive information about designing, installing, operating, and maintaining servo systems using SGMPH servomotors. These motors incorporate advanced servo control technology that delivers precise and fast motion control capabilities for demanding industrial applications including semiconductor manufacturing, electronic assembly, packaging machinery, and precision robotics.

Technical Specifications

The SGMPH-04AAA61D-OY delivers a rated output of 400 watts at a rated speed of 3000 RPM. The rated torque is 1.27 Nm, with a maximum instantaneous torque of 3.82 Nm, providing significant overload capability for acceleration and high-load conditions. The rotor inertia is 0.159 × 10⁻⁴ kg·m², classified as medium inertia, which provides a good balance between responsiveness and stability for applications with varying load characteristics. The motor incorporates a high-resolution serial encoder with 13-bit (8192 pulses per revolution) resolution, providing precise position feedback to the servo drive for accurate speed control and positioning. The encoder resolution allows for fine motion control suitable for applications requiring sub-micron positioning accuracy. The insulation resistance is 10 MΩ or higher at 500 VDC between the windings and the frame, and the dielectric strength withstands 1500 VAC for one minute.

Mechanical Design

The SGMPH-04AAA61D-OY features a compact frame size with a flange dimension of 40 mm square, facilitating integration into machines with limited mounting space. The motor's overall length is approximately 98 mm excluding the shaft, and the shaft diameter is 8 mm with a keyway for positive torque transmission. The motor incorporates a medium-inertia rotor design optimized for applications with varying load characteristics, ensuring stable system operation even under rapid acceleration and deceleration cycles. The motor housing provides IP65 protection against dust and water ingress, except for the shaft through portion where a shaft seal is required for full environmental protection. The motor includes a 24 VDC holding brake option for applications requiring the motor to maintain position when power is removed. The cooling method is natural convection, with the motor housing designed for efficient heat dissipation during continuous duty cycles. High-quality bearings are selected for extended service life and the ability to handle both radial and axial loads encountered in typical industrial applications.

Encoder and Feedback System

At the heart of the SGMPH-04AAA61D-OY is its high-resolution serial encoder, which provides thousands of pulses per revolution to the servo drive. This high-fidelity feedback enables exceptional speed stability, particularly at low RPMs, and contributes to the motor's positioning accuracy. The encoder's design minimizes torque ripple, ensuring smooth motion across the motor's entire operating speed range from 0 to 5000 RPM. The integrated serial feedback system includes sophisticated error-checking routines to prevent signal loss and ensure reliable position feedback even in electrically noisy industrial environments. For absolute positioning applications, the encoder can be paired with a battery backup at either the host controller or the SERVOPACK to retain position information when power is removed. The encoder outputs incremental signals for speed and position control, with the ability to provide absolute position data when used with an absolute encoder version.

Applications

The SGMPH-04AAA61D-OY is suitable for a wide range of precision motion control applications. Typical uses include pick-and-place machines requiring fast, accurate positioning with cycle times under one second, electronic assembly equipment demanding smooth motion at low speeds for delicate component placement, laboratory automation where space and precision are critical, small conveyor systems needing controlled acceleration and deceleration to prevent product damage, and specialized machinery for medical device manufacturing where clean operation and reliability are essential. The 400W power rating makes this motor ideal for applications requiring moderate torque in a compact package. The motor also excels in applications such as semiconductor wafer handling, small CNC machines, and precision dispensing systems.

Installation and Environmental Conditions

The SGMPH-04AAA61D-OY should be installed in a location that provides adequate ventilation and protection from contaminants. The ambient temperature range for operation is 0°C to 40°C, with a maximum permissible humidity of 90% non-condensing. The motor can be mounted in any orientation, but care must be taken to ensure that the cable entry points are properly sealed to maintain the IP65 rating. The motor should be securely fastened to the machine frame using the four mounting bolts provided. The motor shaft should be properly aligned with the load to prevent premature bearing wear. The motor cable should be routed away from high-power lines to avoid electrical noise coupling, and the shield should be grounded at the amplifier end. The motor's holding brake, if used, requires a 24 VDC power supply with proper polarity and should be controlled through the servo amplifier's brake output.

Compatibility and System Integration

The SGMPH-04AAA61D-OY is designed for seamless integration with Yaskawa SGDH series SERVOPACKs. The motor and amplifier combination provides a complete servo system capable of position, speed, and torque control modes. The servo system can be controlled through pulse train commands, analog voltage references, or serial communications depending on the amplifier model. The motor's encoder connects directly to the amplifier using a dedicated cable, providing all feedback signals for closed-loop control. The system supports advanced features including autotuning, vibration suppression, and friction compensation to optimize performance for specific applications. The motor is also compatible with a range of gearheads and linear actuators for application-specific mechanical integration.