["1. Contrôle d'activation/désactivation d'un ventilateur ou d'un pompe à fréquence variablee ?
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"2 " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " pérdida
对于跑轴瓦的泵，转速低时容易出问题
离心泵 离心风机，我们都是低频启动，然后慢慢加频
谢谢！也就是说要看滚动轴承和滑动轴承来区别启动方式吗？
正常启动，按工艺需求由变频器或PID决定最终工作频率。须根据工艺需要设置好PID相关参数，及变频器加减频率的时间。
变频调节，一般先要在现场按启动按钮，接通变频器电源，然后具体转速通过DCS进行给定。