随着科技的发展，变频控制在液压货梯http://www.jnliqiao.com/中得到越来越广泛的应用。变频调速具有启停过程平稳、减少机械冲击、增加乘员的舒适性、提高使用寿命等特点，同时也可通过改变供电频率调节速度，节约电能，提高工作效率，但是变频调速系统在使用过程中会存在干扰，往往会造成液压货梯安全事故的发生。
With the development of science and technology, frequency control to be more widely used in the hydraulic freight elevators. Frequency has a smooth start and stop the process, reduce the mechanical impact and increase occupant comfort,improve service life, but also can adjust the speed by changing the frequency of the power supply, save energy, improve efficiency, but the frequency control system in use will be the presence of interference, often causing the hydraulic freight elevator accidents happen.

液压货梯http://www.jnliqiao.com/的变频调速系统受干扰后，会使系统程序运行失控，导致电机运行时快时慢，吊笼上下运行的速度不稳定；使控制失灵，出现停止按钮和急停按钮不起作用，电机停不下来等现象，可能引起液压升降机失控或高空坠落，造成安全事故。
The frequency control system of hydraulic freight elevator after interference can cause your system is running out of control, causing the motor is running faster or slower, running up and down the cage instability speed; so out of control, the Stop button and the emergency stop button does not work, the motor can not stop such phenomena may cause loss of control or by falling hydraulic lift, causing accidents.