PFEA113-65 ABB 张力电子设备用于设置不同的参数和检查张力系统的状态-厦门雄霸电子商务有限公司

☀详情：PFEA113-65 ABB 张力电子设备用于设置不同的参数和检查张力系统的状态

张力电子产品涵盖广泛的应用，有三个版本，具有不同水平的性能和功能。所有三个版本都有多语言数字显示和配置键。配置键用于设置不同的参数和检查张力系统的状态。
2 x 16字符显示器可以显示和、差或单个称重传感器信号。
这三种型号都有DIN导轨型和封闭式IP 65 (NEMA 4)型，可安装在更恶劣的环境中。

为了控制张力，需要构成张力控制系统。因为张力只能在两个（或两个以上）具有驱动（或制动）力矩的工艺设备间形成，所以张力控制系统是在两个传动控制系统基础上构成的。其中一个传动控制系统作为张力控制系统的速度基准，称为速度基准系统，而另一个传动控制系统按张力要求建立负载，形成张力，实质是对速度基准系统按要求张力进行速度跟随，称为张力可控的速度跟随系统。张力控制的任务一般多放在后一系统上，所以人们习惯地只将后者称为张力控制系统。

张力控制系统由于应用场合、设备、构成原理不同而多种多样。但按结构形式、控制原理可大致将其归纳为直接张力控制系统、间接张力控制系统、活套张力控制系统三大类。

直接张力控制系统

通过张力检测环节（张力检测传感器）实现对张力的闭环反馈控制的系统。卷取机和轧机机架间的直接张力控制系统分别如图1 （a）、（b）所示。

实现直接张力控制，首先要有张力检测传感器（张力计）。它被装在张力测量机构的张力辊下（见图1）。张力计实为压力计，现用的压力计有压磁式、感应式、电阻应变片式等多种型式。

直接张力控制大多用于张力调节范围大，精度要求高及易于安装张力计的场合，或在无法构成间接张力控制系统时使用。

有时为了提高张力调节动态及静态性能，扩大张力调节范围，用间接张力控制实现粗调，起扰动补偿作用，用直接张力控制实现精调，两者合在一起构成张力复合控制。

直接张力控制和张力复合控制多应用于带材、箔材冷轧机或连续加工线的卷取机或其机架间、加工设备间的张力控制上。


☀何经理–供应商的

PFEA113-65 3BSE050092R65

Tensionic products cover a wide range of applications and come in three versions with different levels of performance and functionality. All three versions have multilingual digital display and configuration keys. Configuration keys are used to set different parameters and check the state of the tension system.
The 2 x 16 character display can display sum, difference, or individual weight sensor signals.
All three models are available in DIN rail type and enclosed IP 65 (NEMA 4) type for installation in harsher environments.

In order to control the tension, it is necessary to build a tension control system. Since tension can only be formed between two (or more) process equipment with driving (or braking) torques, the tension control system is constructed on the basis of two transmission control systems. One of the transmission control system as the speed of the tension control system, known as the speed reference system, and the other transmission control system according to the tension requirements to establish the load, the formation of tension, the essence is the speed of the speed reference system according to the required tension to follow, known as the tension controllable speed following system. The task of tension control is generally placed on the latter system, so people are used to only call the latter tension control system.
Tension control systems are varied due to different application situations, equipment and principles of composition. But according to the structure and control principle, it can be roughly summarized into three categories: direct tension control system, indirect tension control system and looper tension control system.
Direct tension control system
The system realizes the closed-loop feedback control of tension through the tension detection link (tension detection sensor). The direct tension control system between coiler and mill stands is shown in Figure 1 (a) and (b) respectively.
To achieve direct tension control, it is necessary to have tension detection sensor (tension meter) first. It is mounted under the tension roll of the tension measuring mechanism (see Figure 1). The tension meter is actually a pressure meter. The pressure meter in use has a variety of types, such as pressure magnetic type, induction type and resistance strain gauge type.
Direct tension control is mostly used for large range of tension adjustment, high accuracy requirements and easy to install tension meter, or in the absence of an indirect tension control system.
Sometimes, in order to improve the dynamic and static performance of tension regulation and expａnd the range of tension regulation, the indirect tension control is used to achieve rough adjustment, play the role of disturbance compensation, and the direct tension control is used to achieve fine adjustment. The two together constitute the tension compound control.
Direct tension control and tension compound control are mainly applied to strip, strip and foil cold rolling machines or continuous winding machines or tension control between the frames and processing equipment.

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