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(4)控制电路电线变频器的控制信号为微弱的电压、电流信号,所以与主电路不同,对主干电线的选择和辅设要增加防干扰对策和遵守规程等,必须细心加以注意。控制电路配线方式如12所示。
(4) Control circuit wire The control signal of the inverter is weak voltage and current signals. Therefore, different from the main circuit, it is necessary to pay special attention to the selection of the main wire and the supplementary measures to increase the anti-interference countermeasures and to observe the procedures. Control circuit wiring as shown in Figure 12.