羅克韋爾自動化將A-B PowerFlex 交流驅動的額定功

Rockwell Automation ups power ratings to 350 hp in Allen-Bradley PowerFlex AC Drives
羅克韋爾自動化加大A-B PowerFlex 交流驅動的額定功率至350馬力
High-performance AC drives offer flexible, cost-effective speed control in a variety of variable torque fan and pump applications
高性能AC驅動為各種變矩風扇和泵應用提供了靈活、高性價比的速度控制
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.
密爾沃基1月15日消息——為了幫助高壓交流電（HVAC）承包商和工程師有效地將變頻電機控制應用到更廣范圍的電機驅動應用中，羅克韋爾自動化擴大了其艾倫－布拉得利（A-B）PowerFlex 400 HVAC驅動的供應，包括了額定功率達350馬力的增強型號。
“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.”
羅克韋爾自動化產品營銷經理David Mantey表示:"涉及大型離心負荷和變化速率的應用，例如空氣處理機、冷凝塔和冷凝器，是大量節省能源的主要目標。PowerFlex 400變頻驅動提供了最優的速度控制，幫助用戶改善空氣處理效率，優化能源消耗，減少能源總體成本。“
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。一個完整的RS485 通信界面對幾乎所有的標準樓宇自動化網絡提供支持，包括Modbus RTU，N2和西門子P1-FLN。這些協議屬于參數可選擇協議，而無需額外的硬件或者軟件。對于擴大的通信能力，可選購的附加模塊提供了連接LonWorks和BACnet 網絡的能力。
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.
內置智能性。PowerFlex 400 HVAC驅動擁有一個嵌入式PID控制器，可以自動調節輸出頻率，維持一個過程變量。三個可編程跳躍頻率和波段預防了驅動連續以會導致機械故障的共鳴速度運轉。可選擇的風扇和泵曲面為離心風扇和泵負荷減少了電壓譜。
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.
睡眠功能允許驅動在系統需求降到一個預設級別之下的時候就停止運行，而當需求增加的時候又自動重新啟動。對于需要無人操作的應用，”連電即啟動“功能使得驅動一旦在停電之后電力恢復的時候可以重新運行。用戶也可以通過冷凍/火和凈化輸入將驅動連接到防火以及安全系統。
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.
斷開和接觸器迂回包通過結合操作界面、控制、通信以及電源選項，在預配置裝配中簡化了安裝和啟動。電流接觸器迂回包帶有三個接觸器，使得驅動在迂回模式中，測試其功能和驅動絕緣性。利用A-B的DriveExplorer和DriveTools SP軟件，用戶可以輕易地計劃、監測和控制驅動。
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的高壓級別使PowerFlex 400驅動具有更大的安裝靈活度，它們可以直接安在一個空氣處理系統的內部，例如通風管道系統。該系列驅動同樣符合在AC156詳細說明的2003國際樓宇代碼的地震要求。NEMA/UL包裝型號帶有外殼，適合室內和室外的應用要求。
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.
羅克韋爾自動化是全球最大的自動化、電力、控制和信息解決方案供應商，致力于幫助生產商提升其業務競爭優勢。公司總部位于美國威斯康星州密爾沃基市，公司雇員大約2萬3千人，業務遍及全球超過80個國家。