Servo Provides Alternative To Traditional Stepper Technology

Nov. 1, 2011
Junma AC Servo requires no parameter settings or gain adjustments.

Yaskawa America's Drives & Motion division has introduced the Junma AC Servo. The new servo technology provides an alternative to traditional stepper technology that offers high-torque output at speeds up to 4,500 RPM and a plug-and-play design concept that requires no parameter settings or gain adjustments.

The Junma AC Servo accepts a pulse reference input from the host controller or PLC. Once connected, the reference pulse switch setting can be selected on the amplifier to match reference output on the controller. System parameters are set on system power up, machine load inertia is calculated automatically, and tuning gains are adjusted dynamically, even when the load changes, allowing the system to adjust to changing conditions.

Adaptive tuning and vibration suppression functions simplify machine commissioning while maintaining position and efficiency. Other functions include jogging, homing to marker pulse, electronic gearing, and torque limiting. Four sets are available with rated outputs ranging from 100 to 7,500 watts, capable of both 100-volt and 200-volt input voltages. A 16-bit incremental encoder provides feedback with a resolution of 65,536 pulses per revolution.