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6ES7322-1BH10-0AA0现代工业系统中的交流和直流电机通常通过可编程逻辑控制器(PLC)进行控制,其中工业机械电位计控制电机速度。这些电位计的游标可能会在一段时间内磨损。本文讨论一种使用少量固态表面贴装器件的简单电路。它使用数字电位计来实现相同的性能,游标触点磨损的问题,从长远来看可以节省资金。
现代工业系统中的直流和交流电机通常由位于控制室中的可编程逻辑控制器 (PLC) 控制,远离过程。如果操作员在观察过程时手动设置电机速度,则选择的组件通常是工业级电位计,其游标产生0V至10V信号,反馈到控制室的电机控制器。这种电位器价格昂贵且容易磨损。磨损时,它们可以打开控制回路,使电机速度上升并失控。
6ES7322-1BH10-0AA0
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6ES7322-1BH10-0AA0