Yaskawa SGDH-04AE Servo Driver
The Yaskawa SGDH-04AE, version 0A214, is a high-performance servo driver within the Sigma II series, rated for 400W output power and designed for 200V AC input operation. This servo amplifier delivers precise motion control for a wide range of industrial automation applications, providing accurate speed, torque, and position regulation for AC servo motors. Its combination of performance features and robust construction makes it suitable for demanding motion control tasks.
Control Performance and Tuning
The SGDH-04AE employs advanced control algorithms to achieve fast response times and high positioning accuracy. The drive supports multiple control modes, including position control for precise motion profiling, speed control for constant velocity applications, and torque control for tension regulation and force-limited operations. Its autotuning capability automatically measures system inertia and optimizes gain parameters, significantly reducing setup time while ensuring stable operation across varying load conditions.
Communication and I/O Configuration
Flexible input and output interfaces allow the SGDH-04AE to integrate seamlessly with a variety of control systems. Analog inputs accept ±10V signals for speed and torque command sources, while pulse train inputs support position control from external controllers. Digital I/O channels provide connectivity for functions such as servo enable, alarm reset, and status monitoring. The driver’s configurable I/O design enables adaptation to diverse application requirements without additional interface hardware.
Protection and Reliability Features
Comprehensive protection circuits ensure reliable operation under fault conditions. The driver continuously monitors for overcurrent, overvoltage, undervoltage, and overtemperature events, initiating appropriate protective responses to prevent damage to the drive and connected motor. Regenerative energy management is incorporated to handle deceleration loads effectively, with built-in regenerative circuitry for typical applications. Status LEDs provide clear visual indication of operating condition and fault states.

Compact Form Factor and Installation
The SGDH-04AE features a compact design that facilitates efficient use of panel space in control cabinets. Its mounting footprint is optimized for high-density installations, allowing multiple drives to be arranged in close proximity while maintaining adequate cooling airflow. Terminal arrangements are designed for straightforward wiring, with clearly labeled connections for power, motor, and control signals. The drive’s physical construction is engineered for secure mounting and reliable electrical connections.
Industrial Application Scope
This servo driver is well-suited for a broad range of industrial motion control applications, including packaging machinery, pick-and-place systems, assembly equipment, and small machine tools. Its combination of precise control, ease of configuration, and robust protection makes it a versatile choice for machine builders and system integrators seeking reliable motion control solutions for 200V power environments.




