YASKAWA SGDH-10DE-OY 1kW Servo Pack

The YASKAWA SGDH-10DE-OY is a high-performance Sigma II SERVOPACK servo drive designed to provide precise position, speed, and torque control for AC servo motors. With a power rating of 1 kW and operation on 400V AC three-phase power, this servo amplifier delivers robust performance for demanding industrial motion control applications. The SGDH series represents Yaskawa's advanced servo drive technology, offering exceptional responsiveness and accuracy.

Product Overview

The SGDH-10DE-OY is part of the Sigma II series, which established new standards for servo system performance in terms of speed, precision, and ease of use. This SERVOPACK is specifically designed to drive Yaskawa Sigma II servomotors, including SGMAH, SGMPH, SGMSH, and other compatible series. The SGDH series incorporates advanced control algorithms including high-resolution serial encoder interface, adaptive vibration suppression, and auto-tuning capabilities that simplify setup and optimize performance. The -OY designation indicates specific options and customizations for particular applications. The servo amplifier is certified to UL, cUL, CE, and SEMI standards, making it suitable for global industrial installations including semiconductor manufacturing equipment. The SGDH-10DE-OY is designed for use in a wide range of applications from general industrial machinery to high-precision positioning systems.

Technical Specifications

The SGDH-10DE-OY is rated for 1.0 kW continuous output power and operates on a three-phase 380 to 480 VAC power supply at 50/60 Hz. The rated input current is 3.5 A, and the power supply capacity is 2.0 kVA. The continuous output current is 3.7 A rms, with a maximum instantaneous output current of 11.2 A rms. The servo drive provides three control modes: position control, speed control, and torque control, selectable through parameter settings or external input signals. The position control mode accepts pulse train inputs with maximum frequency of 500 kpps for line driver signals or 200 kpps for open-collector signals. The speed control mode accepts ±10 VDC analog input with a speed control range of 1:5000. The torque control mode accepts ±10 VDC analog input with a torque reference accuracy of ±5% of rated torque. The frequency response of the speed control loop is 400 Hz, providing fast response to command changes.

Control Modes and Features

In position control mode, the SGDH-10DE-OY provides electronic gearing allowing any command pulse frequency to be multiplied by a ratio from 1/100 to 100 times, enabling precise positioning with various encoder resolutions. The position error is monitored continuously, and a deviation counter overflow alarm is generated if the accumulated error exceeds a preset limit. The speed control mode incorporates a built-in speed command generator with acceleration and deceleration time settings from 0 to 10 seconds, enabling smooth speed ramping. The torque control mode provides a torque reference input that directly controls motor torque output, suitable for tension control and other force-sensitive applications. The servo drive includes an internal regenerative resistor for dissipating regenerative energy during deceleration, with external resistor option for high-duty cycle applications. The dynamic brake function stops the motor quickly when the servo is disabled, preventing uncontrolled coasting. The drive also features a built-in RS-232C/RS-422 communication port for connection to a PC running Yaskawa's SigmaWin+ software, enabling parameter setup, monitoring, and real-time data logging.

Encoder and Feedback System

The SGDH-10DE-OY is designed to work with Yaskawa's high-resolution serial encoders, providing precise feedback for closed-loop control. The standard encoder is a 13-bit incremental encoder with 8192 pulses per revolution, providing a resolution of 0.044 degrees per pulse. For applications requiring absolute positioning, the drive supports absolute encoders that retain position information through power cycles when used with a battery backup. The encoder interface uses a dedicated serial communication protocol that provides high noise immunity and allows long cable lengths up to 20 meters. The drive monitors encoder signals for errors including signal loss, communication errors, and over-speed conditions. The feedback system includes an alarm output that triggers when encoder problems are detected, allowing the host controller to take appropriate action.

Auto-tuning and Setup

The SGDH-10DE-OY features advanced auto-tuning capabilities that significantly simplify system setup and optimization. The auto-tuning function automatically measures the mechanical system's inertia ratio and sets appropriate gain values for the position, speed, and torque control loops. The tuning process can be performed in a few minutes without requiring specialized knowledge of servo tuning. The drive offers multiple tuning modes including standard auto-tuning for general applications, auto-tuning with vibration suppression for systems with mechanical resonance, and manual tuning for experienced users who wish to fine-tune parameters. The drive's adaptive vibration suppression function detects mechanical vibrations and automatically adjusts the notch filter to eliminate them, reducing settling time and improving positioning accuracy. The friction compensation feature improves response in systems with significant static friction by applying a torque boost during direction changes.

I/O Connections and Interface

The SGDH-10DE-OY provides a comprehensive set of input and output signals for integration with host controllers. Digital inputs include servo ON, alarm reset, control mode selection, forward run prohibit, reverse run prohibit, and three programmable inputs that can be configured for functions such as gain switching, zero-speed clamping, and torque limiting. Digital outputs include servo ready, alarm, positioning completion, speed coincidence, and three programmable outputs for functions such as brake control, torque limiting detection, and rotation detection. The pulse train input interface supports line driver (differential) and open-collector signals, with selectable pulse formats including CW+CCW, pulse+direction, and quadrature (A/B) signals. The analog inputs include ±10 VDC for speed reference or torque reference, and the analog output provides ±10 VDC for monitoring motor speed, torque, or current. All I/O connections are made through removable terminal blocks for easy wiring and maintenance.

Protection and Alarm Functions

The SGDH-10DE-OY incorporates extensive protection features to ensure reliable operation and protect the drive and motor from damage. Overcurrent protection trips when output current exceeds 200% of rated current. Overvoltage protection activates when the DC bus voltage exceeds 400 VDC for 200V class drives or 800 VDC for 400V class drives. Undervoltage protection triggers when the input voltage drops below approximately 240 VAC for 400V class. Overload protection uses an electronic thermal overload algorithm that models motor heating and cooling to provide accurate motor protection. Regeneration overload protection monitors the energy absorbed by the regenerative resistor and trips if the resistor exceeds its rating. Over-temperature protection uses a thermistor inside the drive to detect excessive internal temperature. Encoder error detection includes signal loss, communication errors, and abnormal encoder data. The drive also includes protection against phase loss, short circuit, ground fault, and CPU errors. All alarm conditions are stored in the drive's error history, which can be accessed through the operator interface or communication software.

Applications

The SGDH-10DE-OY is suitable for a wide range of industrial motion control applications requiring 1 kW of power. Typical applications include CNC machine tools where precise positioning of axes is required for milling, turning, and grinding operations; robotics where multiple axes must coordinate smoothly; semiconductor manufacturing equipment such as wafer handlers and wire bonders requiring clean and precise motion; packaging machinery where high-speed indexing and registration are critical; printing presses needing synchronized motion across multiple print stations; textile machinery requiring consistent tension control; and material handling systems needing controlled acceleration and deceleration. The 400V power rating makes this drive particularly suitable for installations where 400V power is available, providing higher efficiency and lower current for the same power output compared to 200V drives. The drive's compact design allows installation in space-constrained machine cabinets, with dimensions of approximately 73 mm width, 180 mm height, and 170 mm depth.

Installation and Environmental Requirements

The SGDH-10DE-OY should be installed in a clean, dry location with adequate ventilation. The operating temperature range is 0°C to 55°C, with a maximum humidity of 90% non-condensing. The drive is designed for panel mounting in a vertical orientation to ensure proper cooling airflow. Minimum clearances of 50 mm above and below the drive and 10 mm on the sides are required. The drive should be mounted on a metal panel that provides adequate heat sinking and electromagnetic shielding. The power wiring should be sized appropriately for the input current, with wire gauges typically 1.25 mm² to 2.0 mm² for main circuit connections. The motor cable should be shielded and the shield should be grounded at both ends for best noise immunity. The control signal wiring should be separated from power wiring by at least 200 mm to prevent noise coupling. The drive's grounding terminal should be connected to a dedicated ground with impedance of 100 Ω or less.

Communication and Monitoring

The SGDH-10DE-OY includes an RS-232C/RS-422 communication port that provides a digital interface for setup, monitoring, and control. Using Yaskawa's SigmaWin+ software, users can configure all drive parameters, perform auto-tuning, monitor real-time operating data including speed, torque, position error, and I/O status, and capture oscilloscope-like traces of system response for analysis. The drive supports communication speeds up to 115.2 kbps. For integration with higher-level control systems, the SGDH series offers optional communication modules including DeviceNet, Profibus-DP, and MECHATROLINK interfaces. These modules allow the servo drive to be controlled and monitored over industrial networks, reducing wiring and enabling sophisticated coordinated motion control. The drive's built-in monitoring functions include a 7-segment LED display that shows status codes, alarm codes, and monitored parameters selected by the user.