摘要
本文介绍了基于西门子变频器MM440固定频率设定方法,利用变频器的自由功能块及BICO功能,设计用变频器直接对电动机进行七段速控制的电路。新的控制方法不仅使电路接线简单化,并且实现了低成本控制,具有广泛的推广意义。
Based on the fixing frequency setting method of Siemens MM440 frequency changer, the direct control circuit of electric motor 7 - section velocity applying the frequency changer is designed with frequency ehanger＇s free function block and the BICO function. The new control method, not only making the electric circuit wiring simplify, but realizing the low cost control, has the widespread promoted significance.
出处
《机床电器》
2011年第5期34-37,共4页
Machine Tool Electric Apparatus
关键词
变频器
固定频率设定
BICO
七段速控制
交流电机
frequency changer
fixing frequency setting
BICO
7 -section velocity control
ahernating motor
