ABB DSAO130A 3BSE018294R1模拟输出板
应用包括使用计算机在频率降低时通过监控频率自动卸载负载，或使用图表记录器绘制特定过程中系统的负载。每个模拟输出可分配给表4–3：模拟输出参数中列出的两个参数。模拟输出主选择是默认选择，可编程开关输入可编程，以根据开关输入的打开或关闭状态将模拟输出ALT选择多路复用到同一输出。有关配置开关输入的详细信息，请参见第31页第4.3.4节：开关输入。如果没有开关输入被指定为模拟输出多路复用器，则模拟输出主选择将是出现在模拟输出端子上的唯一参数。在一个模拟输出上复用两个不同模拟输出量的能力有效地为PQM提供了八个模拟输出。下表显示了PQM用于决定输出是否基于MAIN或ALT设置的标准。
Applications include using a computer to automatically shed loads as the frequency decreases by monitoring frequency or a chart recorder to plot the loading of a system in a particular process. Each of the analog outputs can be assigned to two of the parameters listed in Table 4–3: Analog Output Parameters. The analog output main selection is the default selection and a programmable switch input can be programmed to multiplex the ANALOG OUTPUT ALT selection to the same output depending upon the open or closed state of the switch input. See Section 4.3.4: Switch Inputs on page –31 for details about configuring a switch input. If no switch input is assigned as an analog output multiplexer, the analog output main selection will be the only parameter which appears at the analog output terminals. The ability to multiplex two different analog output quantities on one analog output effectively gives the PQM eight analog outputs. The table below shows the criteria used by the PQM to decide whether the output is based on MAIN or ALT settings.
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