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1.概述General

ACR系列網絡多功能電力儀表，是針對電力系統、工礦企業、公用設施、智能大廈的電力監控需求而設計的智能表，它集成電力參數的測量以及電能監測和考核管理。

測量功能強大

• 可測量三相電流、電壓，有功、無功功率，電度、諧波等所有常用電力參數，還能直接顯示功率因數、頻率、THDi 等，為用戶提供全面的電能質量信息。

數據顯示直觀

• 采用 LED 顯示屏，白色背光，可實時清晰顯示多個電參量，多窗口式顯示功能讓使用者能同時讀取多項電力參數，方便用戶觀測和操作。

通信功能完善

• 配備異步半雙工 RS485 通訊接口，采用 MODBUS-RTU 通訊協議，部分還可支持 Profibus-DP 協議，方便與 SCADA、PLC 等系統通訊聯網，滿足自動化通信系統要求，且使用低成本的屏蔽雙絞線配線即可構造可靠的通訊網絡。

配置靈活多樣

• 可直接從電流、電壓互感器接入信號，并能任意設定 PT/CT 變比；儀表顯示可滾動設置；I/O 開關量，繼電器報警輸出，4-20mA 模擬量等功能模塊化設計，用戶可根據需求靈活配置。

控制功能實用

• 帶開關量輸入和繼電器輸出，可實現斷路器開關的 “遙信" 和 “遙控" 功能，配合 LCD 顯示界面和面板按鍵，可實現參數設置和控制，方便接入實時電力監控系統。

數據處理能力強

• 具有最大、最小值記錄、數據儲存、實時報警等功能，還可長時間記錄數據，并配合數據分析軟件使用，能夠更加直觀地展現數據，方便用戶對電能質量情況進行分析和判定。

安裝維護簡便

• 方便安裝，接線簡單，工程量小；儀表采用專用失電保護電路，在失電情況下，數據保存不丟失，恢復電源后，儀表繼續運行，且模塊化設計使其更易于維護和更換。

應用范圍廣泛

• 適用于能源管理系統、變電站自動化、配電網自動化、小區電力監控、工業自動化、智能建筑、智能型配電盤、開關柜等眾多領域，凡是有電力供應的地方都有其用武之地。.

性價比高

• 集多種功能于一體，可直接取代常規電力變送器及測量儀表，價格相對合理，具有較高的性價比，能夠為用戶提供較好的投資回報。

質量可靠

• 安科瑞作為一家擁有雄厚技術實力的電力測量儀器制造廠家，其高標準的制造工藝以及嚴謹的產品測試流程，使 ACR120E 的品質有了可靠保障

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2. 技術參數 Technical parameters

3.3注意事項Notice

3.3.1電壓輸入 Voltage Input

輸入電壓應不高于產品的額定輸入電壓（100V或400V）的120%，否則應考慮使用PT；

在電壓輸入端須安裝1A保險絲；

Input voltage should not higher than 120% of product's Input voltage(100V or 400V), otherwise, should use PT;

1A fuse should be mounted on the voltage Input end；

3.3.2電流輸入Current Input

電流輸入必須使用外部CT接入。

接線時確保輸入電流與電壓相序一致，即1號線接線端接A相電壓，則5、6號接線端一定要接A相電流，否則會出現顯示數值和符號錯誤；同時確保電流進出線連接正確（標*號端子接進線）；

如果使用的CT上連有其它儀表，接線應采用串接方式；

安裝接線時建議使用接線排，不要直接接CT，以便于拆裝；

去除產品的電流輸入連線前，必須先切斷CT一次回路或者短接二次回路！

Current input must use external CT access

When wiring, ensure that the Input current and voltage has same  phase sequence, i.e. if l# terminal is connected with A phase voltage, then 5,6# terminal must be connected with A phase current, otherwise, display value and symbol error may occur; while ensure the connection correctness of current  inlet and outlet (symbol *terminal connecting with inlet);

If the used CT connected with other meters , the connection is adopting series connection mode;

When wiring,using Connector bar is recommended, not connected with CT directly, to facilitate dismounting ;

Before removing product current Input connection, firstly, cutoff CT primary circuit or short the secondary circuit!

3.3.3通訊接線Communication connection

該儀表提供異步半雙工RS485通訊接口，采用MODBUS-RTU協議，各種數據信息均可在通訊線路上傳送。理論上在一條線路上可以同時連接多達128個儀表，每個儀表均可設定其通訊地址（Addr），通訊速率（buad）也可通過設置選擇。

通訊連接建議使用三芯屏蔽線，線徑不小于0.5mm2，分別接A、B、COM2，屏蔽層接大地，COM2禁止接大地，布線時應使通訊線遠離強電電纜或其他強電場環境。

建議最末端儀表的A、B之間加匹配電阻，阻值范圍為120Ω～10kΩ。

具體接線實例見6.6所示。

This meter provides asynchronism half duplex RS485 Communication interface, adopts MODBUS-RTU protocol, various data information may be transmitting on the Communication Line .Theoretically ,on the same Line, meters up to 128 may be connected at the same time, each meter can set up its  Communication address(Addr), Communication rate(buad)may be selected

Communication connection recommendation of three-core shielded wire, its linear diameter is no less than 0.5mm2.separately connecting A, B, COM2 ,the shielded layer connecting earth, COM2 is prohibited by the earth.when wiring, the Communication line shall be far away from strong current cable or other strong electric field environment.

Recommendation of adding matched resistance between A, B of the last meter, the rated resistance range is 120Ω-10kΩ.

4. 編程與使用Program and Usage

4.1測量項目及面板說明(數碼顯示)Explanation for measurement items and faceplate

儀表面板右側V123指示燈點亮時，三排數碼管分別顯示三相電壓；I123指示燈點亮時，三排數碼管分別顯示三相電流；PQλ指示燈點亮時，三排數碼管分別顯示總有功功率、總無功功率、總功率因數；面板上左邊三個燈為功率負號指示燈，當任一負號燈點亮時表明該排顯示值為負值；EPQ指示燈點亮表示顯示項目為電能，ACR網絡電力儀表可以監測四象限電能數據：

On the ACR Network power meters faceplate,when its right side V123 indicator lights, three rows digitrons separately Displays three- phase voltage,I123indIcator lights, three rows digitrons separately Displays  three-phase  current; PQλ indicator lights, three rows digitrons separately Displays total active power, total reactive power, total power factor; but its top-left three indicators as power minus sign indicators, when any minus sign indicator lights, this shows the Displaying is negative value; EPQ indicator Lights，shows the Displaying Item is Electric energy, ACR Network power meters can measure four quadrant Electric energy data:

EPI--吸收有功電能capture active Electric energy

EPE--釋放有功電能release active Electric energy

EQL--感性無功電能Inductive reactive Electric energy

EQC--容性無功電能capacitive reactive Electric energy

右側k、M代表所顯示項目的單位數量級為千或兆。

Right side k、M: k=kilo; M= million

例：如下圖所示，“EPQ"指示燈亮，一排數碼管顯示EPI，表示當前顯示吸收有功電能，k指示燈亮，表示電能單位為kWh，讀電能時將第二排數碼管和第三排數碼管連讀，如下圖所示電能為123456.78kWh。

Example: As below figure shows: EPQ indicator lights, the first row digitrons Display EPI, currently Display the capture active Electric energy, K indicator "(Lights, shows Electric energy Unit is kWh, the Electric energy reading value is the second row digitrons plus the third row digitrons, the Electric energy shown in below figure is 123456.78kWh.

注：

1、通常情況下，用戶都是用電狀態，此時應讀取EPI值（吸收有功電能）；發電廠向外發電時讀取EPE值（釋放有功電能）。如果用戶既有用電情況、又有發電機向外發電情況，則儀表EPI和EPE里都會有電能顯示。

2、ACR儀表顯示電能值時，無特殊說明普通型指示的電能數據為一次側電能，此值無須再乘以電流、電壓變比。液晶復費率型指示的電能數據為二次側電能值，該值乘以電流、電壓變比才是一次側電能值。

3、當用戶發現電能或功率指示明顯不正常時，可通過查看三個分相功率確認有無接線錯誤。切換到PQλ指示燈亮（不帶PQλ頁面的可在頁面按回車鍵查看分相功率，規格不同略有差異），三行分別顯示總有功功率、總無功功率、三相功率因數時，按回車鍵，此時三行分別顯示PA、PB、PC三個分相有功功率，若用電狀態時存在任一分相功率為負（負號指示燈亮）均屬不正常。檢查該相電流電壓接線，觀察是否存在CT進出線反，或電壓與電流相序不對應等情況。若用戶采用3相3線接線方式（2CT接法），只顯示兩個分相功率，不能使用上述方法判斷，建議客戶咨詢我司技術支持人員。

4、各型號產品對應的前面板會有所不同，圖示面板僅供舉例參考。

Note:1.In a general way, users is in electricity utilization, at this time, read EPI value (capture active Electric energy); if power plant output of its power, read  EPE value (release active Electric energy) .If users use power and generate power for other, then Electric energy display appear in meters of EPI and EPE。

2. When ACR meters display Electric energy value, LED (digitron) indicated Electric energy data is the primary side Electric energy, this value need not be multiplied by current, voltage transformation ratio. But LCD (liquid crystal) indicated Electric energy data is the secondary side Electric energy value, This value need be multiplied by current, voltage transformation ratio to display primary side Electric energy value.

3. When user discover that the display of Electric energy or power is abnormal clearly, may check three phase splitting power value and symbols for error wiring. Switch to PQ A 'indicator lights, three - row digitrons display total active power, total reactive power, three-phase power factor, pressing ENTER button, for long time, at this time, three - row digitrons separately display PA.  PB.  PC three splitting phase active power, if use power but any phase splitting power is negative(minus sign indicator lights).it is abnormal. Check This phase current, voltage connection, to see if CT inlet and outlet is reversal, or voltage and current with improper phase sequence If the user adopts the three- phase-three-wire connection mode (2CT connection), pressing ENTER button for long time, to Display two phase splitting power, the above judge method is not proper, please consult our technical support personnel.

4. Corresponding to the front panel of each type of product will be different,graphic panel can only be for reference.

5. 產品接線方法Wiring method

（注：如與儀表殼體上接線圖不一致，以儀表殼體上接線圖為準）

(Note：if it is different from the Wiring diagram on the meters cabinet, follows the Wiring diagram on the meters cabinet)

根據不同的設計要求，推薦在電源、電壓輸入端子增加保險絲以滿足相關電氣規范的安全性要求。

According to varied design requirements, power and voltage input terminals are recommended with fuse to meet with the safety performance requirements of prevailing electric codes.