KOLLMORGEN S20330-SRS
数据和电源的链接。这个
数据链路是同步的，并监控差异。金融情报室和级情报室都有飞机
用于表征温度相关问题的温度传感器。
HIU和FIU板的电源都是冗余的、完全仪表化的，并且
这是可测试的。这些组件一起构成电源完整性子系统。
1.8.事件序列特征
该模块自动测量磁场电压和电流，以确定磁场状态
每个输出通道。当输出从一种状态转换到另一种状态时，会发生事件
另一个当信道改变状态时，会记录车载定时器值。当
TMR处理器接下来从输出模块读取数据、信道状态和实时数据
检索时钟值。TMR处理器使用该数据将状态变化记录到
系统事件序列（SOE）日志。用户可以将每个输出配置为包括在
系统SOE日志。SOE的完整详细信息包含在可信的事件序列和
过程历史记录软件包，发表于ICSTT-RM243（PD-T8013）。
1.说明：可信TMR 24Vdc数字输出模块–40信道
814期罗克韦尔自动化出版物ICSTT-RM280N-EN-P
1.9.输出开关结构
数字输出模块提供了一种TMR开关拓扑，其中负载由电源驱动
总共三个完全监控的故障安全（6个元件）开关通道，一个物理驻留
在模块中的每个FIU上。任何单个开关或整个片故障都会留下两个
在为负载供电的三个故障安全开关通道中。
图3输出开关结构
图3中所示的上部开关表示为N.O.（常开），并且为：
由他们实际居住的金融情报室控制。1.下部开关为：
其被描述为N.C.（常闭），并由相邻的FIU.2的“上游”控制
注：在这种情况下，N.O.定义为在没有控制信号电源的情况下处于关闭状态，以及
类似地，N.C.是在没有控制信号功率的情况下的导通状态。这些交换机由以下部件构成：
增强型MOSFET和均保证在没有模块电源的情况下关闭，以创建
栅极电压信号将其偏置到3（例如，与机电继电器不同）。
在没有控制信号的情况下，下开关被指定为接通的原因
电源允许两个通道在整个片发生故障时为负载供电。即使整个系统
片故障时，幸存的输出电路将承载NECE
KOLLMORGEN S20330-SRS
KOLLMORGEN S20330-SRS
A resistor provides a means of continuously monitoring the switch current. A signal transistor is used to drive the gate of Switch 2. It provides Switch 2 with a negative gate voltage, to minimize its on resistance, and serves to hold Switch 2 on in the event that the secondary gate control loses power. The Zener diode between the gate of Switch 2 and source is only required to protect the gate from large voltage spikes on the drain that might capacitively couple through when Switch 1 and Switch 2 are in the off state. The resistors in series with the gate of Switch 1 and the signal transistor serve to protect the drive logic in the event of a malicious switch failure. The pull-up resistors define the gate voltages in the absence of power. 1.9.1. Switch Diagnostics During normal operation, Switch 1 and Switch 2 are maintained on. In this state, Switch 1 and Switch 2 exhibit a low resistance. To determine the ability of the system to control the load via Switch 1 and Switch 2, their gate voltages are modulated, one at a time. As the gate voltages are modulated, the monitoring signals synchronously change in a predictable fashion. The local DSP analyses the relative amplitude and phase of these small AC signals, to determine the on resistance and threshold voltages of each switch. The current to the load does not need to be completely interrupted in order to obtain a level of confidence in the ability of the transistors to turn off. For the TMR switch configuration in the on state, only one fail safe switch at a time needs to be modulated, while the other two bear the load current. 1. Description Trusted TMR 24Vdc Digital Output Module – 40 Channel 10 Issue 14 Rockwell Automation Publication ICSTT-RM280N-EN-P 1.9.2. Short Circuit Protection Output channels are classified as protected under IEC 61131-2, specifically ‘Protected Outputs Requirements’. While energised, the channel output current is monitored to protect the channel switches from damage by a sustained over-current condition. Having detected a sustained overcurrent condition a short-circuit fault state is latched and the output is de-energised. While de-energised, the output may be optionally be configured to detect short-circuit field faults (resistance less than 24 Ω) through System .INI file configuration. The detection of short-circuits while de-energised relies upon a partial energising of the field circuit to determine the channel load resistance. The partial energising of a field circuit is designed to constrain any change in field voltage or current to less than 2 V or 100 mA, respectively. A latched short-circuit fault state can be cleared by operating the system Fault Reset button or by transitioning the commanded channel state. The output also includes a non-replaceable fusible link for absolute protection.
