The card can collect four axes' encoder pulse signals simultaneously, and control servo motor by four output analog voltage. Furthermore, it can control input and output I/O signals.

该运动控制卡能同时采集四轴的编码器脉冲信号，输出四路模拟电压控制伺服电机，同时能控制I/O信号的输入和输出。

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Now commonly used servo motor is ac servo motor, the axial end in motor with photoelectric encoder, by examining the rotor Angle to frequency conversion control.

目前常用的伺服电机是交流伺服电机，在电机的轴端装有光电编码器，通过检测转子角度用以变频控制。

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Due to the large torque coefficient, small torque ripple and ease of control, permanent magnet synchronous motor (PMSM) system has been widely used in many accurate servo control systems.

永磁同步电动机系统具有力矩系数大、力矩波动小以及控制灵活等优点，在许多精密伺服控制系统中得到广泛应用。

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