BENTLY 330103-10-14-10-02-05

• 型号：330103-10-14-10-02-05


• 数量：3


• 制造商： 厦门雄霸电子商务有限公司


• 有效期：2020/8/8 0:00:00

BENTLY 330103-10-14-10-02-05

BENTLY 330103-10-14-10-02-05

BENTLY 330103-10-14-10-02-05

动力线、控制线以及PLC的电源线

电源线是用作电气组件或设备与电源的联接线，一般来说指电线与其一端联接的插头或尾插的集合体，是电器产品的根本零部件之一。电源线分为电线和插头两部分。

和I／O线应别离配线，隔绝变压器与PLC和I／O之间应选用双绞线联接。将PLC的I／O线和大功率线分隔走线，如必须在同一线槽内，分隔捆扎交流线、直流线，若条件容许，分槽走线最好，这不仅能使其有尽或许大的空间距离，并能将烦扰降到最低极限。

PLC应远离强烦扰源如电焊机、大功率硅整流设备和大型动力设备，不能与高压电器设备在同一个开关柜内。在柜内PLC应远离动力线(二者之间距离应大于200 mm)。与PLC装在同一个柜子内的电感性负载，如功率较大的继电器、接触器的线圈，应并联RC消弧电路。

PLC的输入与输出最好选用分隔走线，开关量与模拟量也要分隔敷设。模拟量信号的传送应选用屏蔽线，屏蔽层应一端或两头接地，接地电阻，物质对电流的阻止作用就叫该物质的电阻。电阻小的物质称为电导体，简称导体。电阻大的物质称为电绝缘体，简称绝缘体。 应小于屏蔽层电阻的1／10。

交流输出线和直流输出线不要用同一根电缆

电缆是一种用以传输电能信息和完成电磁能转化的线材产品。既有导体和绝缘层，有时还加有避免水份侵入的紧密内护层，或还加机械强度大的外护层，结构较为杂乱，截面积较大的产品叫做电缆。输出线应尽量远离高压线和动力线，避免并行。

(3)I／O端的接线

输入接线：输入接线一般不要太长。但假如环境烦扰较小，电压降不大时，输入接线可适当长些；输入／输出线不能用同一根电缆，输入／输出线要分隔；尽或许选用常开触点方式联接到输入端，使编制的梯形图与继电器原理图一致，便于阅览。

输出联接：输出端接线分为独立输出和公共输出。在不同组中，可选用不同类型和电压等级的输出电压，但在同一组中的输出只能用同一类型、同一电压等级的电源。由于PLC的输出元件被封装在印制电路板上，并且联接至端子

端子一般指由铜材等冲制而成的联接器接触件。端子是联接电气线路的常用元件，首要在器材与组件、组件与机柜、系统与子系统之间起电联接和信号传递的作用，并且尽量保持系统与系统之间不发作信号失真和能量丢掉的改变.

板，若将联接输出元件的负载短路，将焚毁印制电路板。选用继电器输出时，所承受的电感性负载的大小，会影响到继电器的运用寿命，因此，运用电感性负载时应合理挑选，或加隔绝继电器。PLC的输出负载或许发作烦扰，因此要采用办法加以控制，如直流输出的续流管保护，交流输出的阻容吸收电路，晶体管

晶体管是由三层杂质半导体构成的器材，有三个电极，所以又称为半导体三极管，晶体三极管等，可以用于检波、整流、扩大、开关、稳压、信号调制和许多其它功用。

晶闸管（Thyristor）是晶体闸流管的简称，又可称做可控硅整流器，从前被简称为可控硅；1957年美国通用电器公司开宣告世界上第一款晶闸管产品，并于1958年将其商业化；晶闸管是PNPN四层半导体结构，它有三个极：阳极，阴极和门极; 晶闸管具有硅整流器材的特性，能在高电压、大电流条件下作业，且其作业进程可以控制、被广泛运用于可控整流、交流调压、无触点电子开关、逆变及变频等电子电路中。

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