Closed-Loop Servo Control for Voice-Coil and Single-Phase Motors

Aerotech’s XL4s linear amplifier for closed-loop servo control of voice coil and single-phase motors eliminates the nonlinearities common with PWM amplifiers.

Closed-Loop Servo Control from Aerotech for Voice-Coil and Single-Phase Motors
Closed-Loop Servo Control from Aerotech for Voice-Coil and Single-Phase Motors

The unit provides deterministic behavior, auto-identification, and easy software setup. It also features a multi-core, double-precision, floating-point DSP that controls the digital PID. All parameters are software-settable including control-loop gains and system safety functions. This makes possible industry-leading settling times, long-term thermal stability, and sub-micron-level tracking accuracy with advanced features such as full state feed-forward, 192 kHz servo rates, and look-ahead-based velocity control. The high servo rate correlates to better tracking errors and part quality at high-speeds in applications such as fast-tool servos, high-dynamic optical focusing axes, and high-speed pick-and-place machines. Other features include encoder interpolation, dedicated analog and digital I/O, fiber-optic interface, and separate power connections for motor and control supply voltages.

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Aerotech Inc.
www.aerotech.com
412.963.7470

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