PFTL201CE 50.0KN 3BSE007913R51张力控制器

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和大流量驱动电机均使用直流电机系统。直流电机系统使用寿命短、价格昂贵。 二、针对上述不足，我们提出全新的电器系统方案。 　　1、采用S7-400和S7-300系列PLC作为逻辑功能控制系统的核心部件，该PLC系统的CPU具有中到大型的程序存储容量，其所带的PROFIBUS接口可以建立分布式的自动化系统结构，具有高速及易于处理的特点，主站由一台S7-400构成安装在主电器柜内，可以在料机、卷烟机、接装机上建立由S7-300构成的独立子站。由于采用了DP总线结构使整个系统简单明了，抗干扰能力强。系统中选用FM 355S闭环控制模块或模拟量输入输出模块对机组加热元件进行控制，使用PT100铂电阻进行温度信号采集，通过PID算法或自优化温度控制算法进行各个加热器的温度控制，通过工控机触摸屏可以对温度参数进行设置和修改并实时显示温度数值和报警状态。 

And large flow drive motors use DC motor system. DC motor system has short service life and high price. 2、 In view of the above shortcomings, we propose a new electrical system scheme. 1. S7-400 and S7-300 series PLC are used as the core components of the logic function control system. The CPU of the PLC system has medium to large program storage capacity. The Profibus interface it carries can establish a distributed automation system structure, which has the characteristics of high speed and easy processing. The main station is composed of a S7-400, which is installed in the main electrical cabinet, and an independent sub station composed of S7-300 can be established on the feeding machine, cigarette machine and loading machine. Due to the adoption of DP bus structure, the whole system is simple and clear with strong anti-interference ability. In the system, FM 355s closed-loop control module or analog input and output module is selected to control the heating elements of the unit, PT100 platinum resistance is used to collect temperature signals, PID algorithm or self optimizing temperature control algorithm is used to control the temperature of each heater, and the temperature parameters can be set and modified through the touch screen of industrial computer, and the temperature value and alarm status can be displayed in real time.