GE THED136090 交流变频器的功率范围扩大到 450 kW/700 Hp，为用户带来了更强大的应用灵活性。PowerFlex 755 交流变频器具有高级诊断功能并采用滚入式设计，非常适合石油与天然气、轮胎和橡胶、精炼、物料输送、金属和采矿等各类重工业中的电机控制应用。

　　“客户反馈说需要大功率变频器，这提醒了我们应该设计功率范围更大的 PowerFlex 755 变频器了。”罗克韦尔自动化变频器产品经理 GE THED136090说道。“他们指明了自己的需求：可靠性出众、易于维护并且使用通用的控制选件以便减少库存和备件。这款变频器便可满足各方面要求，既使用户的安装和应用更为灵活，又提供了最大程度降低停机时间和保护关键投资所需的高级诊断功能。”

　　PowerFlex 755 扩展功率范围变频器的一个主要特色是滚入式设计，利用该功能可以方便地操作变频器，从而快速地完成安装和维护。变频器的模块化设计有助于简化冷却风扇、电路板和主要子组件等变频器部件的更换。这种模块化设计还允许在更换逆变单元的同时使变频器的整流单元和控制盒留在柜体内，以使控制接线仍能保持连接状态。还有一个优点是：这种变频器内的控制盒可远程安装，使访问控制盒和故障诊断更方便和安全。

　　高级诊断功能包括显示熔断器和浪涌保护器状态的指示。高级诊断功能不仅会将这些报警报告给主控制系统以帮助故障处理，而且还对变频器内部提供必要的保护，从而保护客户的投资。高级诊断功能还包括监视和跟踪有关冷却风扇、I/O 继电器生命周期以及电机运行时间，为预防性维护提供宝贵的数据，有助于减少意外停机次数和时间。

　　PowerFlex 755 变频器配有一个内置以太网端口和五个可选插槽，用户可通过这些插槽定制变频器，使其完美贴合应用需求。选件包括 I/O、反馈、安全、附加通信以及辅助控制电源输入。

　　PowerFlex 755 现已支持罗克韦尔自动化集成伺伏控制，可通过 RSLogix 5000 软件利用罗克韦尔自动化 ControlLogix 控制器中的伺伏配置文件和指令集进行组态和控制。支持通用网络中的变频驱动器、伺伏驱动器、I/O、智能执行器以及其它 EtherNet/IP 连接设备，这一功能有助于增强设计灵活性，提高系统性能并削减工程成本。

　　功率范围的扩展使 PowerFlex 755 交流变频器功率从 0.75 kW (1 Hp) 提升到最高 450kW 和 700Hp（400/480 VAC 输入），在单个产品系列中将稳定、易用、灵活和高性能集于一身。

联系人：小费
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