8691型ELEMENT分离式自动化气动过程阀burkert

类型描述

控制头 8691 型是专为在 ELEMENT 21xx 系列气动过程阀的分离式自动化而设计。利用非接触式模拟传感器元件实现阀门位置检测，在启动时通过Teach功能自动识别和保存阀门最终位置。一体化先导阀可控制单作用或双倍作用执行机构。可选通讯接口、 AS-Interface或 DeviceNet、IO-link 或 büS（基于 CANopen）。控制头和执行机构的设计可在无外部管道系统的情况下实现内部的空气控制。除电子位置反馈器，即使在苛刻的环境条件下，也能直接从控制头上的彩色LED灯识别设备状态。外壳易清洗，IP防护等级和耐化学腐蚀性材料等特点，适用于食品、饮料和制药高卫生级应用领域。

 

（1）非接触感应式阀门位置检测（Teach-In功能）

（2）彩色状态显示灯

（3）集成空气控制系统的执行机构

（4）0现场总线接口AS-Interface、DeviceNet、IO-link 或 büS (Bürkert System Bus)

（5）ATEX II 3G/D/IECEx 类认证

 

类型 8691 - Control head for decentralized automation of ELEMENT process valves

类型描述

The control head Type 8691 is designed for decentralized automation of ELEMENT Type 21xx pneumatic process valves. The registration of the valve end position is done through a contact-free analog position sensor, which automatically recognises and saves the valve end position through the Teach function when starting up. The integrated pilot valve controls single or double-acting actuators. As an option a fieldbus interface, AS-Interface, DeviceNet, IO-link or büS (based on CANopen) can be chosen.The design of the control unit and the actuator enables an internal control air channel without external tubings. Besides the electrical position feedback signal the status of the device is shown directly on the control head itself through coloured powerful LEDs showing a clear visible valve position status, even under dirty or dark environments. The housing is easy to clean and features proven IP protection and chemically resistant materials for use in hygienic processing in food, beverage and pharmaceutical industries. Focused on wash down applications the IP rating is supported by a positive pressure inside the control head. Combined with Bürkert ELEMENT actuators the unique pilot valve system enables a compressed air recycling that avoids actuator chambers contamination from the environment.

（1）Contact-free inductive valve position registration (Teach function)

（2）Coloured illuminated status display

（3）Integrated control air routing

（4）Fieldbus AS-Interface, DeviceNet, IO-link or büS (Bürkert System Bus)

（5）With ATEX II cat. 3G/D / IECEx approval