摘要
桥式起重机电控系统采用专用G7变频器控制,可以轻松实现无级调速,速度控制范围较宽,调速精度较高,速度响应时间快,启动和低速运行时转矩大,有专用卷扬的S参数设置,从而使卷扬电机在零速时,也能提供较大的额定转矩输出,防止卷扬机构产生溜钩现象,提高了起重机使用中的安全性。
The electric control system of bridge crane adopts dedicated G7 frequency converter to control, so it can re- alize stepless speed regulation easily. The speed control range is wide; the speed regulation precision is higher; the speed response time is quick; the torque at starting and low speed running is big and has S parameter setting for special hoist, so that hoisting motor can provide larger rated torque output at zero speed, prevent hoisting mechanism from generating hook gliding phenomenon and improve the safety in the use of crane.
出处
《包钢科技》
2018年第1期79-81,共3页
Science & Technology of Baotou Steel
