【FBM04 FBM04操作阐明】

FBM04FBM04驾御说明: 操控小车电动机的变频器输入操控端的组织  一般桥式起重机有五档速度,所以3个外接开关K3,K4,K5来操控速度信号,达到调理速度的企图(理论可达8档速度),外接开关情况与速度的对应联络如下表所示。用户可自在设定与每档速度对应的频率大小。  3.3 梯形图  小车电动机的梯形图程序如图4所示。  使用PLC操控的变频调速技巧,桥式起重机拖动体系的各档速度,加快时辰和制动减速时辰都可依据现场情况由变频器设置,调解便利。负载变化时,各档速度基本不变,调速机能好。若是改造原有体系,大小车电动机仍可选用原有的绕线转子异步电动机,将转子绕组引出线短接,去掉电刷和集电环,节约互换电动机的费用。  本文只以小车电动机的操控为例来解析体系的硬件构成和软件设计。其它电动机制操控原理相同,仅仅电动机功课情况和功课历程稍有差异,只需在此基础上略作批改便可
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