Yaskawa SGDH-04AE-OY 400W AC Servo Driver for 200V Class

The Yaskawa SGDH-04AE-OY is a compact servo amplifier rated at 400W continuous output, designed for 200V AC mains (single-phase or three-phase). Part of the Σ-II series, it drives Yaskawa SGMP or SGMG servomotors with high torque density. This driver features advanced autotuning and vibration suppression, making it ideal for precision positioning applications in machine tools and robotics.

Power and Control Specifications

Main circuit: 200-230V AC ±10%, 1/3-phase, 50/60Hz. Control power: same as main. Output current: 2.3A continuous, 7.1A peak. Frequency response 1.6 kHz. Speed range 1:5000. Encoder feedback: 16-bit absolute or incremental (option). The driver includes dynamic brake and regenerative resistor (internal 40W).

I/O and PLC Interface

Standard digital inputs: 8 opto-isolated (24V DC) for servo-on, alarm reset, gain select, etc. Digital outputs: 5 (open collector) for ready, alarm, positioning completion. Analog monitor outputs: 2 (±10V) for speed/torque. Pulse train input (line driver or open collector) supports up to 500kHz from PLC positioning modules. Analog torque/speed command input ±10V.

Communication and Setup

RS-232C/RS-485 port, compatible with SigmaWin+ software for tuning and oscilloscope function. The driver stores parameters in EEPROM. For PLC networks, optional DeviceNet or Profibus modules are available. MECHATROLINK-II interface allows connection to Yaskawa motion controllers.

Protection and Environmental

Overcurrent, overvoltage, overload, encoder error, and regenerative fault protection. IP20 enclosure, operating temperature 0-55°C. Dimensions 60x160x170mm (WxHxD). Weight 1.2kg. Cooling method: natural convection (no fan).

Applications

Used in semiconductor manufacturing, PCB drilling, pick-and-place machines, and small robots. The 400W size matches many single-axis stages. With PLC pulse interface, it can be easily integrated into existing systems. Autotuning reduces setup time for varying load inertias.

Maintenance and Reliability

MTBF > 100,000 hours. Replacement fans not needed. Diagnostic LEDs indicate power, alarm code, and enable status. The SGDH series has a long industry track record and spare parts support. For higher power, models up to 15kW exist.

Conclusion

The Yaskawa SGDH-04AE-OY provides a cost-effective 400W servo solution with robust PLC compatibility. Its combination of high-resolution feedback and fast current loop ensures smooth motion for demanding automation tasks.