...网 关键词】变频调速;二次供水;无负压供水;优化调度;二位三通电磁阀 [gap=697]Key words】Changing frequency to control speed; The secondary water supply; No-negative pressure water supply; Optimization di..
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Stepping motor control by pulse, by changing the order of power to change the direction of rotation motor, change the pulse frequency may change the motor rotation speed.
步进电机受脉冲的控制，通过改变通电的顺序可改变电机的旋转方向，改变脉冲的频率可改变电机的旋转速度。
Changing the speed of electric motor by using ac frequency conversion is to regulate output flow of hydraulic pump to control the velocity of the motion of hydraulic actuator.
通过交流变频调速改变电机的转速来调节液压泵的输出流量。控制液压执行元件的运动速度。
This machine adopts micro-computer system to control the frequency-changing metre and with infinite speed adjustment.
本机采用微机程序控制变频器，无级调速。
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