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我厂碳素中压车间1997年安装了一台50t双梁桥式起重机,其大车由双电动机(YZR-160L-6、11kW)拖动,小车由单电动机(7.5kW)拖动,两者均采用三菱公司FR-A140E型变频器来调速。控制图如图1所示。
In 1997, our factory installed a 50t double-girder overhead crane with a double-motor (YZR-160L-6, 11kW). The car was dragged by a single motor (7.5kW) and two Those who are using Mitsubishi FR-A140E-type inverter to speed. Control chart shown in Figure 1.