ABB DSAX110 57120001-PC PC板连接器
•标称直接输入电压：仅当选择VT接线作为直接连接时，才会显示此设置点。必须在此消息中输入标称直流输入电压。该值将用于缩放分配给显示电压的模拟输出，作为标称电压的百分比。•标称系统频率：输入标称系统频率。PQM根据Van电压测量频率，并调整其内部采样，以最适合测量的频率。如果Van输入不可用，PQM将采用此处输入的频率。•模拟输出范围：如果安装了T20选项，模拟输出可配置为4至20 mA电流源或0至20 mA电源。所有四个模拟输出将在该设定点中选择的相同范围内工作。•模拟输出主/模拟输出ALT：如果PQM与可编程控制器、自动设备或图表记录器一起使用，则模拟输出可用于连续监控。尽管可以为连续模拟输出选择参数，但所有值都可以通过通信接口以数字方式获得。
• NOMINAL DIRECT INPUT VOLTAGE: This setpoint is displayed only if VT WIRING is selected as a direct connection. The nominal direct input voltage must be entered in this message. This value will be used to scale an analog output that is assigned to display voltage as a percentage of nominal. • NOMINAL SYSTEM FREQUENCY: Enter the nominal system frequency. The PQM measures frequency from the Van voltage and adjusts its internal sampling to best fit the measured frequency. If the Van input is unavailable, the PQM will assume the frequency entered here.• ANALOG OUTPUT RANGE: If the T20 option is installed, the Analog Outputs can be configured to operate as 4 to 20 mA current sources or 0 to 20 mA current sources. All four Analog Outputs will operate with the same range as selected in this setpoint. • ANALOG OUTPUT MAIN / ANALOG OUTPUT ALT: If the PQM is used in conjunction with programmable controllers, automated equipment, or a chart recorder, the analog outputs can be used for continuous monitoring. Although parameters can be selected for continuous analog output, all values are available digitally through the communications interface.
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