1756-CP3 AB

【1756-CP3 AB】

厦门莫格电气自动化有限公司
作为**自动化、控制和过程解决方案等领域的良好企业之一，AB，GE，英维思，福克斯波罗等欧美的产品

已得到**数万家工厂的采用，其中包括世界大型的炼油厂、燃气厂、石化厂、发电厂、纸浆和造纸厂，以及小型的综合性批量制造工厂，

产品广泛应用于数控机械 冶金、石油天然气、石油化工、化工、造纸印刷、纺织印染、机械、电子制造、汽车制造、**、塑胶机械、电力、水利、水处理/环保、**工程、锅炉供暖、能源、输配电等行业


看到本条信息直接联系，**好价格。



**控制系统零部件解决方案

（图片只做参考，不代表实物图，价格和具体内容请电询，感谢您的来电！)  

 

工作QQ ：1982497648

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传真：0592-6514751（请备注“雷琳”收）以便我及时联系您！

地 址：厦门市思明区槟榔西里197号*四层B19单元

 

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2.4 牵引速度控制
    牵引速度的控制在铝塑复合管生产中至关重要,它直接影响挤出的管材尺寸和焊接质量。如牵引速度太慢,焊头在铝带上停留的时间长,易将铝带焊穿;如牵引速度太快,焊接速度跟不上,则焊不牢。牵引速度还要与挤出速度相匹配,如牵引速度过大,管子表面会出现竹节现象;牵引速度过低则会使管材直径过大而**差。系统中牵引速度是根据焊接速度和挤出速度按一定的公式计算出速度给定值,通过主站接口模块的IF2 口以RS - 485 的通讯方式送到各变频器的,并在软件中将设定速度与实际速度进行比较,形成速度闭环控制。
 
2.5 辅助控制程序
    生产现场还有些辅助设备,如预热、冷却、剪切、卷绕设备等。这些设备对控制的实时性要求不高,单独编程按普通任务执行。
 
    实际生产中还需要检测运行中的故障,对设备进行保护,并提供多种报警模式。挤出机中的报警大致分为温度报警、直流调速系统和变频器或电机报警以及机械动作报警。温控采用的是软件集中控制,可以直接控制系统每一路的加热单元,以随时报告加热的异常状态。在人机界面上可以显示实际温度和设定温度,从而对各加热单元进行监视,并实现**温或低温报警。传统控制系统无法显示故障原因,因而维修起来困难。而在该系统中,由于能够显示故障位置和故障原因,检验维护非常方便。
3 结束语
    铝塑复合管生产中的挤出机自动化程度高,控制复杂。基于可编程计算机控制器的该系统凭借B&R PCC的先进技术,在控制功能和控制精度上达到了较高的水平,为实现工厂自动化创造了条件。PCC的多任务操纵系统进步了控制的实时性,开放式CAN 总线保证了主、从站之间信息流的畅通。主站与直流调速系统、变频器以通讯的方式结合起来,实时修改控制参数,进步了生产线的自动化程度。用PCC控制的挤出机运行稳定,维护方便,安全可靠
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