| 过载保护在PLC输入和输出控制中的处理方法与原则 |
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| 引用本文： | 朱永迪,叶旺盛.过载保护在PLC输入和输出控制中的处理方法与原则[J].机电产品开发与创新,2011,24(2):153-154. |
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| 作者姓名： | 朱永迪 叶旺盛 |
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| 作者单位： | 1. 兰州理工大学,甘肃,兰州,730070;兰州职业技术学院,甘肃,兰州,730070
2. 兰州理工大学,甘肃,兰州,730070 |
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| 摘 要： | 介绍过载保护在PLC输入和输出控制中的处理方法与原则.阐述热过载继电器辅助触点置于PLC输入和输出控制线路中的用法.分析热过载继电器辅助触点置于PLC输入和输出控制线路中的优缺点.分析PLC输入控制线路中使用热过载继电器常开和常闭触点的优缺点.通过对热过载继电器在PLC输入和输出控制中的用法和各自优缺点的分析得出:过载...
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| 关 键 词： | PLC控制 过载保护 热过载继电器 |
Study on Treatment Methods and Principle of Overload Protection Based on PLC Input and Output Control |
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| ZHU Yong-Di,YE Wang-Sheng.Study on Treatment Methods and Principle of Overload Protection Based on PLC Input and Output Control[J].Development & Innovation of Machinery & Electrical Products,2011,24(2):153-154. |
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| Authors: | ZHU Yong-Di YE Wang-Sheng |
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| Affiliation: | 1.Lanzhou University of Technology,Gansu Lanzhou 730070,China; 2.Lanzhou Vocational Technical College,Gansu Lanzhou 730070,China) |
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| Abstract: | Introduction overload protection in the PLC input and output control processing method and principle.Elaborated that the thermal overload relay auxiliary contact puts in the PLC input and output control circuit＇s usage.Analyzes the thermal overload relay auxiliary contact to put in the PLC input and output control circuit＇s good and bad points.Analyzes in the PLC input control wiring uses thermal overload relay normally open contact and normally closed contact＇s the good and bad points.Through the thermal overload relay in the PLC input and output control＇s usage and the respective good and bad points＇ analysis obtains the overload protection in the PLC input and the output control total application principle. |
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| Keywords: | PLC control overload protection thermal overload relay（OLR） |
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