罗克韦尔自动化将A-B PowerFlex 交流驱动的额定功

Rockwell Automation ups power ratings to 350 hp in Allen-Bradley PowerFlex AC Drives
罗克韦尔自动化加大A-B PowerFlex 交流驱动的额定功率至350马力
High-performance AC drives offer flexible, cost-effective speed control in a variety of variable torque fan and pump applications
高性能AC驱动为各种变矩风扇和泵应用提供了灵活、高性价比的速度控制
Milwaukee, Jan. 15, 2007 — To help HVAC contractors and engineers efficiently apply variable frequency motor control to a broader set of motor-driven applications, Rockwell Automation has expanded its Allen-Bradley PowerFlex 400 HVAC drives offering to include increased power ratings up to 350 horsepower. Optimized for commercial fan and pump applications, PowerFlex 400 AC drives feature built-in network connectivity for seamless integration into building automation systems, as well as flexible packaging options for easy installation and startup.
密尔沃基1月15日消息——为了帮助高压交流电（HVAC）承包商和工程师有效地将变频电机控制应用到更广范围的电机驱动应用中，罗克韦尔自动化扩大了其艾伦－布拉得利（A-B）PowerFlex 400 HVAC驱动的供应，包括了额定功率达350马力的增强型号。
“Applications involving large centrifugal loads and changing flow rates, such as air handlers, cooling towers and chillers, are prime targets for significant energy savings,” said David Mantey, product marketing manager, Rockwell Automation. “PowerFlex 400 variable frequency drives deliver optimum speed control to help users improve air handling efficiency, optimize energy consumption and reduce overall energy costs.”
罗克韦尔自动化产品营销经理David Mantey表示:"涉及大型离心负荷和变化速率的应用，例如空气处理机、冷凝塔和冷凝器，是大量节省能源的主要目标。PowerFlex 400变频驱动提供了最优的速度控制，帮助用户改善空气处理效率，优化能源消耗，减少能源总体成本。“
Ease of Integration. An integral RS485 communications interface provides support for most standard building automation networks, including Modbus RTU, N2 and Siemens P1-FLN. These protocols are parameter selectable and require no additional hardware or software. For expanded communication capability, optional add-on modules provide connectivity to LonWorks and BACnet networks.
集成容易。一个完整的RS485 通信界面对几乎所有的标准楼宇自动化网络提供支持，包括Modbus RTU，N2和西门子P1-FLN。这些协议属于参数可选择协议，而无需额外的硬件或者软件。对于扩大的通信能力，可选购的附加模块提供了连接LonWorks和BACnet 网络的能力。
Built-In Intelligence. PowerFlex 400 HVAC drives feature an embedded PID controller that automatically adjusts the output frequency to maintain a process variable. Three programmable skip frequencies and bands prevent the drive from running continuously at resonant speeds, which could cause mechanical breakdowns. Selectable fan and pump curves provide reduced voltage patterns for centrifugal fan and pump loads.
内置智能性。PowerFlex 400 HVAC驱动拥有一个嵌入式PID控制器，可以自动调节输出频率，维持一个过程变量。三个可编程跳跃频率和波段预防了驱动连续以会导致机械故障的共鸣速度运转。可选择的风扇和泵曲面为离心风扇和泵负荷减少了电压谱。
A sleep function allows the drives to be cycled off when the system demand drops below a preset level, and restarted automatically when the demand increases. For applications that require unattended operation, a “Start At Power Up” function allows the drives to resume running once power is restored after a power outage. Users also can connect the drives to fire and safety systems via freeze/fire and purge inputs.
睡眠功能允许驱动在系统需求降到一个预设级别之下的时候就停止运行，而当需求增加的时候又自动重新启动。对于需要无人操作的应用，”连电即启动“功能使得驱动一旦在停电之后电力恢复的时候可以重新运行。用户也可以通过冷冻/火和净化输入将驱动连接到防火以及安全系统。
Disconnect and contactor bypass packages simplify installation and startup by combining operator interface, control, communications and power options in preconfigured assemblies. Contactor bypass packages come with three contactors, allowing drive test functionality and drive isolation when in bypass mode. Users can easily program, monitor and control the drives using Allen-Bradley DriveExplorer and DriveTools SP software.
断开和接触器迂回包通过结合操作界面、控制、通信以及电源选项，在预配置装配中简化了安装和启动。电流接触器迂回包带有三个接触器，使得驱动在迂回模式中，测试其功能和驱动绝缘性。利用A-B的DriveExplorer和DriveTools SP软件，用户可以轻易地计划、监测和控制驱动。
A UL 508C plenum rating gives PowerFlex 400 drives further installation flexibility by allowing them to be mounted directly inside an air handling system, such as ventilation ductwork. The drives also meet seismic requirements of the 2003 International Building Code as specified by AC156. NEMA/UL packaging options include enclosures to meet both indoor and outdoor application requirements.
UL 508C的高压级别使PowerFlex 400驱动具有更大的安装灵活度，它们可以直接安在一个空气处理系统的内部，例如通风管道系统。该系列驱动同样符合在AC156详细说明的2003国际楼宇代码的地震要求。NEMA/UL包装型号带有外壳，适合室内和室外的应用要求。
Rockwell Automation (NYSE: ROK), is a leading global provider of automation, power, control, and information solutions that help manufacturers achieve a competitive advantage in their businesses. Headquartered in Milwaukee, Wis., U.S.A., the company employs about 23,000 people serving customers in more than 80 countries.
罗克韦尔自动化是全球最大的自动化、电力、控制和信息解决方案供应商，致力于帮助生产商提升其业务竞争优势。公司总部位于美国威斯康星州密尔沃基市，公司雇员大约2万3千人，业务遍及全球超过80个国家。