模拟量输入模块 LB3002A2
来源：未知 日期：2017/08/28 浏览量：次
模块化的远程I/O系统通过总线接口将现场二进制和模拟量的传感器和执行器连接至控制系统的方式传输安全区域或者爆炸危险区域的现场过程数据。模块化的远程I/O系统通过总线接口将现场二进制和模拟量的传感器和执行器连接至控制系统的方式传输安全区域或者爆炸危险区域的现场过程数据。
可以将4 ~20 mA设备连接到远程I/O，例如流量变送器、阀门定位器、压力传感器或者温度变送器。诸如热电偶（TCs）、电阻式温度检测器（RTDs）、机械触点以及声光报警器等设备也可以连接到远程I/O。我们的远程I/O系统能够兼容PROFIBUS DP, MODBUS RTU, MODBUS TCP/IP 和 FOUNDATION fieldbus等网络协议。
LB远程I/O系统能够安装于危险区 Zone2或者Zone 22以及安全区。该系统是模块化的信号处理系统，是现场信号和安全区的控制系统之间的接口界面。LB远程I/O系统通过标准的总线通讯协议（PROFIBUS, Modbus 等），将传统的传感器和现场设备的信号传送给DCS。可插拔的输入和输出模块能够在线热插拔。
I/O模块有一系列单通道和多通道的模块可供选择同时满足本安应用以及增安的现场连接要求。这样的设计简化了工程设计并且满足工厂的需要。
产品特点：● 1-channel
● Power supply for 2- or 3-wire transmitters with 4 mA ... 20 mA
● Installation in Zone 2 or safe area
● Supply circuit 15 V (20 mA)
● Input from active signals of 4-wire transmitters
● HART communication via field bus or service bus
● HART communication also for separately powered devices
● Simulation mode for service operations (forcing)
● Line fault detection (LFD) and Live Zero monitoring
● Permanently self-monitoring
● Module can be exchanged under voltage
| Supply： | ||
|---|---|---|
| Connection | backplane bus | |
| Rated voltage | 12 V DC , only in connection with the power supplies LB9*** | |
| Power dissipation | 0.4 W | |
| Power consumption | 1 W | |
| 内部总线： | ||
| Connection | backplane bus | |
| Interface | manufacturer-specific bus to standard com unit | |
| 模拟输入： | ||
| Number of channels | 1 | |
| Suitable field devices | ||
| Field device | pressure converter | |
| Field device [2] | flow converter | |
| Field device [3] | level converter | |
| Field device [4] | Temperature Converter | |
| Field device interface | ||
| Connection | 2-wire transmitter | |
| Connection [2] | 3-wire transmitter | |
| Connection [3] | 4-wire transmitter | |
| Connection |
2-wire transmitter (HART): supply circuit: 2/3+, 4/5- 3-wire transmitter (HART): supply circuit: 2/3+, 6- measuring circuit: 4/5+, 6- 4-wire transmitter (separately powered): measuring circuit: 4/5+, 6- HART measuring circuit: 1+, 6- |
|
| Transmitter supply voltage | min. 15 V at 20 mA ; 21.5 V at 4 mA | |
| Input resistance | 15 Ω (terminals 5, 6) 236 Ω (terminals 1, 6) HART | |
| Line fault detection | can be switched on/off for each channel via configuration tool , configurable via configuration tool | |
| Short-circuit | factory setting: > 22 mA configurable between 0 ... 26 mA | |
| Open-circuit | factory setting: < 1 mA configurable between 0 ... 26 mA | |
| HART communication | yes | |
| HART secondary variable | yes | |
| 传递特性： | ||
| Deviation | ||
| After calibration | 0.1 % of the signal range at 20 °C (68 °F) | |
| Resolution | 12 Bit (0 ... 26 mA) | |
| Refresh time | 100 ms | |
| 指示灯/设置： | ||
| LED indicator |
Power LED (P) green: supply Diagnostic LED (I) red: module fault , red flashing: communication error , white: fixed parameter set (parameters from com unit are ignored) , white flashing: requests parameters from com unit Status LED (1) red: line fault (lead breakage or short circuit) Status LED (2) yellow: Live Zero monitoring |
|
| 指令符合： | ||
| Electromagnetic compatibility | ||
| Directive 2014/30/EU | EN 61326-1:2006 | |
| 符合： | ||
| Electromagnetic compatibility | NE 21:2007 | |
| Degree of protection | IEC 60529:2000 | |
| 周围环境： | ||
| Ambient temperature | -20 ... 60 °C (-4 ... 140 °F) , 70 °C (non-Ex) | |
| Storage temperature | -25 ... 85 °C (-13 ... 185 °F) | |
| Shock resistance | shock type I, shock duration 11 ms, shock amplitude 15 g, number of shocks 18 | |
| Vibration resistance |
frequency range 10 ... 150 Hz; transition frequency: 57.56 Hz, amplitude/acceleration ± 0.075 mm/1 g; 10 cycles frequency range 5 ... 100 Hz; transition frequency: 13.2 Hz amplitude/acceleration ± 1 mm/0.7 g; 90 minutes at each resonance |
|
| Damaging gas | designed for operation in environmental conditions acc. to ISA-S71.04-1985, severity level G3 | |
| 机械特性： | ||
| Degree of protection | IP20 when mounted on backplane | |
| Connection |
removable front connector with screw flange (accessory) wiring connection via spring terminals (0.14 ... 1.5 mm2) or screw terminals (0.08 ... 1.5 mm2) |
|
| Mass | approx. 90 g | |
| Dimensions | 16 x 100 x 102 mm (0.63 x 3.9 x 4 inch) | |
| 与危险区域有关的应用数据： | ||
| Certificate | BVS 13 ATEX E 038 X | |
| Marking |
 II 3 G Ex nA [ic] IIC T4 Gc |
|
| Galvanic isolation | ||
| Input/power supply, internal bus | safe electrical isolation acc. to EN 60079-11, voltage peak value 375 V | |
| Directive conformity | ||
| Directive 2014/34/EU |
EN 60079-0:2012 EN 60079-11:2012 EN 60079-15:2010 |
|
| 国际认证： | ||
| ATEX approval | BVS 13 ATEX E 038X | |
| IECEx approval | BVS 13.0043X | |
| Approved for | Ex nA [ic] IIC T4 Gc | |
| Marine approval | ||
| Lloyd Register | 15/20021 | |
| Bureau Veritas Marine | 22449/B0 BV | |
电气连接图：
远程I/O系统的典型应用：
远程I/O适用于位于爆炸危险区或者严酷工业环境的应用，例如海洋平台和户外。典型的应用行业包括石油天然气（内陆及海洋）、制药、化工、污水处理、食品饮料等。
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