TRICONEX 3401 数字输出模块 它们独立地接受来自与每个通道关联的MP的数据

3401   数字输出模块

数字输出模块每个IMR数字输出模块都有三组隔离的电子设备,称为通道，它们独立地接受来自与每个通道关联的MP的数据。这些通道使用获得的四通道投票电路对施加到负载的单个输出信号进行投票。该投票器电路基于并联串联路径，如果三个开关中的两个(通道A和B,或通道B和C，或通道A和C)命令它们闭合，则通过电源。四路投票电路在所有关键信号路径上具有多个冗余，保证了安全性和大可用性。对于每个点，DO模块会定期执行输出投票者诊断(OVD) 例程。 为了在各种多故障情况下实现不受限制的安全操作，0VD会检测并报警以下类型的故障:● 点-在不到500毫秒的时间内检测到所有卡住和卡住。开关- -检测所有卡住或卡住的开关或其相关的驱动电路。溶氧模块包括针对每个通道的完整、持续的诊断。 如果诊断程序检测到任何通道出现故障,故障指示灯将打开并激活系统警报。故障指示器标识通道故障，而不是整个模块故障。溶解氧模块保证在出现单个故障时正常运行，并可能在某些多个故障下继续正常运行。DO模块支持热备盘模块。每个溶解氧模块都采用机械键控，以防止在配置的底板上安装不当。这些底板可与3401型DO模块-起使用:●2401 型,用于典型应用。● 2401L型，用于需要积分电流限制的低电流应用。每个输出都配有一个 180欧姆串联电阻器。● DO外部端接底板，在高压应用中与继电器输出外部端接面板-起使用， 或9671-610型DO危险场所外部端接面板。

Each IMR digital output module has three sets of isolated electronic devices called channels, which independently receive data from the MP associated with each channel. These channels use patented four channel voting circuits to vote on a single output signal applied to the load. The voter circuit is based on a parallel series path, and if two of the three switches (channels A and B, or channels B and C, or channels A and C) command them to close, it passes through the power supply. The four way voting circuit has multiple redundancies on all critical signal paths, ensuring safety and maximum availability. For each point, the DO module will periodically execute the Output Voter Diagnostic (OVD) routine. In order to achieve unrestricted safe operation in various multi fault situations, 0VD will detect and alarm the following types of faults: ● Point - detects all stuck and stuck in less than 500 milliseconds. Switch - detects all stuck or stuck switches or their associated drive circuits. The dissolved oxygen module includes complete and continuous diagnosis for each channel. If the diagnostic program detects a fault in any channel, the fault indicator light will turn on and activate a system alarm. The fault indicator identifies a channel fault, rather than an entire module fault. The dissolved oxygen module ensures normal operation in the event of a single fault and may continue to operate normally in certain multiple faults. The DO module supports the hot spare module. Each dissolved oxygen module adopts mechanical keying to prevent improper installation on the configured base plate. These backplanes can be used in conjunction with the 3401 DO module: ● 2401 for typical applications. 2401L type for low current applications that require integral current limitation. Each output is equipped with a 180 ohm series resistor. DO external termination base plate, used in high-voltage applications with relay output external termination panels, or Type 9671-610 DO hazardous area external termination panels.