风机泵类商业应用的*选择
罗克韦尔自动化旗下艾伦-布拉德利PowerFlex400变频器拥有众多内置特性支持变频器与楼宇控制系统之间的无缝连接，大大方便了风机和泵类在商业领域的应用（如HVAC）。可选功率范围从7.5HP到100HP（电压等级为交流380V到480V时）和7.5HP到50HP（电压等级为交流200V到240V时）。PowerFlex400是为满足全球OEM、分销商和*终用户对于灵活性、节省空间和使用方便的要求设计的。明智地选择PowerFlex 400高效率低成本变频设备，为您的风机和泵类运用提供*的速度控制。
特性：
· 集成的PID控制器可自动调整输出频率，调节过程变量。
· 三个可编程的跳变频率段防止了变频器在共振频率中连续运行，避免机械损坏。
· 可选的风扇/泵类曲线针对离心风扇和泵类负载提供降电压模式。
· PowerFlex400变频器的休眠功能在系统需求降低到预先设定标准时，自动关闭机器；当系统需求增加时，自动起动机器。
· 针对某些无人看管运行环境，系统断电而后恢复时，变频器将自动重起运行。
· Freeze/Fire和Purge等特定输入，可直接连接到消防等紧急安全系统。
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