描述
ABB TU850是ABB S800 I/O系统中的模块终端单元（MTU），主要用于确保连接的I/O模块的信号分配和寻址正确。以下是其详细信息：
基本信息
品牌：ABB
产地：瑞典
产品类型：模块终端单元
产品编号：3BSE050930R1
尺寸：宽度126mm（包括连接器），边缘到边缘安装尺寸为120.5mm，深度64mm（包括端子），高度110mm
重量：0.26kg
电气参数
最大额定电压：50V
额定电流：数字输入时每I/O通道15mA，模拟输入时每两个I/O通道25mA
功能特点
通道数量：支持多达16个I/O通道，可与AI 810、DI 810、DI 811、DI 830、DI 831等I/O模块配合使用。
连接方式：采用端子块连接，具有40个连接点，用于多达16个I/O通道，同时提供16个限流传感器/变送器电源插座，配备25针D型（公）连接器。
安装方式：支持双向安装，可安装在标准DIN导轨上，机械钥匙锁定防止错误插入I/O模块，并有用于接地的DIN导轨锁扣装置。
电源连接：可连接单个或冗余24V直流电源。
应用领域
主要应用于工业自动化领域，作为ABB S800 I/O系统的一部分，可用于各种需要信号分配和寻址的场景，如工厂自动化生产线、过程控制系统等，能有效确保现场设备与控制系统之间的稳定通信。
The ABB TU850 is a modular terminal unit(MTU)in the ABB S800 I/O system,primarily used to ensure correct signal assignment and addressing for connected I/O modules.The following are its details:
Basic Information
Brand:ABB
Origin:Sweden
Product Type:Modular Terminal Unit
Product Number:3BSE050930R1
Dimensions:Width 126mm(including connector),edge-to-edge mounting dimension 120.5mm,Depth 64mm(including terminals),Height 110mm
Weight:0.26kg
Electrical Parameters
Maximum Rated Voltage:50V
Rated Current:15mA per I/O channel for digital inputs,25mA per two I/O channels for analog inputs
Features
Number of Channels:Supports up to 16 I/O channels and can be used with I/O modules such as the AI810,DI 810,DI 811,DI 830,and DI 831.Connection Method:Terminal block connection with 40 connection points for up to 16 I/O channels.It also provides 16 current-limiting sensor/transmitter power sockets with a 25-pin D-type(male)connector.
Mounting Method:Bidirectional mounting is supported on standard DIN rails.A mechanical key lock prevents incorrect insertion of I/O modules,and a DIN rail latch is provided for grounding.
Power Connection:Supports single or redundant 24V DC power supplies.
Application Areas:Primarily used in industrial automation,as part of the ABB S800 I/O system,it can be used in various scenarios requiring signal distribution and addressing,such as factory automation production lines and process control systems,effectively ensuring stable communication between field devices and control systems.
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