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Matrox 521-0201 MRV2/VID
Matrox 521-0201 MRV2/VID
来自:福州聚福兴自动化有限公司
面议
发布时间:2020-6-3 关注次数:122
产品参数
产品参数
品牌 Matrox 521-0201 MRV2/VID
规格型号 Matrox 521-0201 MRV2/VID
编号 齐全
计量单位
付款方式 面议
价格单位 人民币
商品详情

Matrox 521-0201 MRV2/VID现货 in stock! 欢迎来电咨询~!!

Matrox 521-0201 MRV2/VID,

Matrox 521-0201 MRV2/VID

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Matrox 521-0201 MRV2/VID


  1 引言

  纺丝机纺出的涤纶原丝需经过牵伸定型后,才具有一定的纤度、强度、伸度和其它的物理性能。VC443A牵伸加捻机用于涤纶复丝生产过程中牵伸加捻工序。牵伸丝为低捻复丝,可直接或经加弹工序后供绸厂使用。它的电气部分由电源控制系统、程序控制系统、锭子交流变频调速系统、热盘控制系统、热板控制系统组成。随着机电一体化技术的发展,对系统的可靠性要求愈来愈高,因PLC具有控制可靠、体积小、功能强、速度快,组态灵活和可扩展性的特点而得到了广泛的应用,成为自动化系统中的基本电控装置,故VC443A牵伸加捻机选用PLC可编程控制器,实现了生产的自动控制。

  2 PLC选型设计

  系统选用了日立公司的产品:E-64HR可编程控制器,作为主控单元,它有64个输入/输出点,其中40个开关量输入点,24个输出点,内置式电擦除EEPROM可以保护用户方便的完成程序和参数的修改和存储, PLC根据各输入点所接按钮,接近开关,接触器等电器信号的状态以及编制的软件程序自动控制各电机,电磁阀,指示灯等,完成整个生产的工艺动作程序,钢领板换向及成型自动控制。E-64HR具有多种编程工具:通用编程器PGMJ-R和标准编程器PGNJ等,体积小携带方便,可在现场实地进行程序调整和传送。全部控制程序约276条,可见该系统软硬件资源得到了相当充分的利用。

  3 VC443A牵伸加捻机工艺

  3.1 输入信号

  VC443A牵伸加捻机控制系统的输入信号:主令按钮、限位开关、接近开关、钮子开关、拨盘开关的投入信号,全部为直流输入,共有40点。

  3.2 输出信号

  控制的负载主要分成三类:一是7台交流电机:牵伸双速电机M1、油泵电机M2、靠模升电机M3、靠模降电机M4、移丝电机M5、锭子电机M6、风机M7;二是用于控制钢领板升降及侧压辊压差的电磁阀;三是信号灯;四是计数器,共有24点,全部为继电器接点输出信号。

  3.3 开车主要控制过程

  (1) 按“油泵开”按钮SB7,使接触器KM5吸合, 油泵开指示灯亮, 油泵电机M2运转。(程序器的输出50对应的LED发光)。

  (2) 按“低速开”按钮SB9。

  ●辅助接触器KA1吸合,锭子低速运转。(程序器的输出51对应的LED发光)

  ●程序器控制下,使计数器复零,进入准备工作状态,内部定时器T01 T02接通,使钢领板强迫进入废丝盘位置,待TO0延时到断开快速阀YV3,钢领板在程序器控制下微动。(程序器的输出76、65对应的LED发光,延时到熄灭,66、67对应LED交替发光)

  ●定时器TO1延时到,使接触器KM3吸合,牵伸双速电机M1带动牵伸罗拉和上下牵丝盘低速运转,低速指示灯亮,进入挂丝阶段。(程序器的输出52对应的LED发光)

  (3) 按“高速开”按钮SB11。

  ●辅助接触器KA2吸合,使锭子高速运转。(程序器的输出53对应的LED发光)

  ●程序器控制使电磁阀YV4断电,侧压辊加压。(程序器输出64对应LED发光)

  ●定时器T02接通,延时到后接触器KM4得电,牵伸双速电机M1切换为高速运转,高速指示灯亮,继电器KA3吸合,移丝电机M5运转。(程序器输出54对应的LED发光。55对应的LED发光)

  ●定时器T03延时到后,钢领板强迫上升,靠模上撞块使底部打结开关SA2接通,定时器T04得电,使上升阀失电,实现底部打结,T04延时到上升阀YV1/1再次得电,强迫钢领板快速上升,进入正常牵捻区,待T05延时到后切断快速阀YV3,钢领板在程序器控制下,以正常速度运动,同时接通继电器KA4,靠模升电机M3运转,带动靠模缓慢上升,计数器开计长(程序器56对应的LED发光。65对应的LED在接通快速阀时发光,74对应的LED发光,有计长信号时发光指示)。

  至此开车过程结束,机器进入正常纺丝。
 

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