APPLICATION NOTES VALVE CHECKER G040-123 伺服閥檢測(cè)儀闡明書(shū) 型號(hào)G040-123 翻譯：許國(guó)超 本文獻(xiàn)供參照 6月 CONTENTS 目錄 Chapter Title Page 扉頁(yè) 1. Description 3 產(chǎn)品描述 3 2. Specification 7 規(guī)格闡明 3. Quick Start 9 快開(kāi) 4. Connecting to valve and plant 11 閥設(shè)備連接 5. Plant mode operation (in line) 12 工作模式操作（在線） 6. Checker mode operation (stand alone) 15 檢測(cè)模式操作（離線獨(dú)立） 7. External 24V supply 17 外部供電24V 8. Valve performance checks 18 閥性能檢測(cè) 9. Block diagram 20 流程圖 DESCRIPTION 產(chǎn)品描述 1.1 The Moog G040-123 Valve Checker is an instrument capable of checking the flow control function of nearly the complete range of Moog electrical feedback (efb) proportional and servo valves. Mechanical feedback (mfb) and pressure control valves are not catered for by the G040-123. 穆格 G040-123型伺服閥監(jiān)測(cè)儀是一種能對(duì)穆格閥就近能對(duì)閥流量控制，比例閥和伺服閥電氣信號(hào)反饋檢測(cè)儀器。帶機(jī)械反饋壓力控制閥不能用G040-123型檢測(cè)儀。 The feature that makes it so versatile is the way it can test a valve while the valve is still installed in its normal operating plant. This is done at two levels, “in line” and “stand alone”. 這種儀器特點(diǎn)能對(duì)安裝在閥臺(tái)上正常工作閥門進(jìn)行多方面檢測(cè)和操作。這里有兩種測(cè)試方式：在線檢測(cè)和獨(dú)立檢測(cè)。 1.1.1 Plant (In Line) 工廠工作（在線檢測(cè)） As in fig a) the plant and valve operate normally. In fig b) the Valve Checker is connected between the plant electronics and the valve such that all the plant electronics’ signals，to and from the valve，are connected as normal. The Valve Checker monitors the plant electronics’ signals and the signals back from the valve，enabling a check of the valve’s performance. 圖a為電氣線路與控制閥普通連接方式； 圖b為伺服閥檢測(cè)儀串聯(lián)在電氣線路和控制閥總電氣線路之間，保證閥輸出輸入線路在正常狀態(tài)。檢測(cè)儀器能檢測(cè)電氣信號(hào)和輸入給閥信號(hào)，來(lái)檢測(cè)閥性能。 1.1.2 Checker (Stand Alone) 檢測(cè)模式（獨(dú)立檢測(cè)） In this mode the plant command is switched out while the Valve Checker generates the command to the valve and monitors the signals back from it. The valve remains installed in the plant but the plant command signals are disconnected. Checking while still installed in the plant provides the added benefit of checking the valve by observing the reaction of the plant to the Valve Checker’s commands. 在這個(gè)模式下操作，工廠工作指令被斷開(kāi)，檢測(cè)儀控制信號(hào)輸給閥，閥反饋信號(hào)在回到檢測(cè)儀。盡管檢測(cè)儀還串聯(lián)在電路中，但工作信號(hào)已經(jīng)被斷開(kāi)。檢測(cè)同步，可以由檢測(cè)員給出指令來(lái)監(jiān)測(cè)被測(cè)閥動(dòng)態(tài)變化。 1.2 The Valve Checker is powered by the plant electronics which also continue to supply the valve in both plant and checker modes of operation. As well，there is a +24V DC power connector on the front panel for 24V DC and ± 15V DC powered valves，without connection to the plant electronics’ power. 1.2檢測(cè)儀供電源由原電路供應(yīng)，同步能繼續(xù)提供應(yīng)被檢測(cè)閥在“ 工作”和“ 檢測(cè)”模式操作提供電源。同樣這里24V直流電源可以提供閥電子元件所需24V直流電源或± 15V 直流電源。不必外接其他電器電源。 1.3 Two cables connect the Valve Checker to the plant electronics and valve. Each of the Valve Checker models is dedicated to a power supply voltage and connector type. It is necessary to select the model type that has the correct connector and supply voltage. The table below shows the model numbers and their supply/connector types. 1.3連接在檢測(cè)儀兩條電氣線一條接供應(yīng)電線，另一條接被檢測(cè)閥上。無(wú)論檢測(cè)儀那個(gè)模式下都是這樣連接來(lái)提供電源電壓和連接方式（接頭普通類型同樣），對(duì)于必要要選取類型要糾正連接類型和提供電源電壓。下表提供是型號(hào)和電源電壓參數(shù) Model dash number table:零件模塊參數(shù)表 Model dash 型號(hào)— connector 接頭、插接件 supply 供應(yīng) 1.4 There are six functional blocks on the front panel. 在面板上有六個(gè)功能模塊 1. Q Command 電流指令 4. Control 控制 2. Spool 滑閥 5. Enable 啟動(dòng)，容許 3. Power 電源 6. Valve Connector 閥連接接口 1.4.1 Q Command 電流指令 This block is active only when checker mode is selected. The rotary pot adjusts the Q command level. 只有在選在“檢測(cè)模式”下這某些模塊才干投入使用，旋轉(zhuǎn)鈕是調(diào)節(jié)電流大小量。 The grey test point gives a 0 to ±10V signal proportional to the actual voltage or current being delivered to the valve. The rotary selector switch selects the signal type that is connected to the valve. 這個(gè)灰色測(cè)電位點(diǎn)提供0V~±10V成比例輸出真是電信號(hào)，信號(hào)積極傳遞給被檢測(cè)閥件，旋轉(zhuǎn)扶手開(kāi)關(guān)選著輸給閥信號(hào)類型 The +/- switch connects the valve Q command signal to the non-inverting (+ve gives P? A) and inverting (+ve gives P? B) inputs. 這個(gè)“+/-”開(kāi)關(guān)是連接閥Q指令開(kāi)關(guān)，開(kāi)關(guān)在“+”位置（閥給油P? A）輸入，在“-”位置（閥給油P? B）輸入。 1.4.2 Spool滑閥 The spool position signal from the valve is always available at the green spool test point and passed on to the plant electronics regardless of the mode of operation. The green spool test point gives a 0 to ±10V signal proportional to the spool signal from the valve. The LED display to the left of the test point provides a rudimentary indication of the signal. The centre blue null LED will be illuminated when the spool signal is less than ± 10%. 無(wú)論哪種控制模式下，從閥來(lái)閥芯位置信號(hào)總是在測(cè)試點(diǎn)上呈綠色，這些綠色測(cè)試點(diǎn)上電信號(hào)與提供0 ~ ±10V電信號(hào)成正比例。LED批示燈顯示左邊測(cè)試點(diǎn)跡象,提供了一種初步信號(hào)，中心藍(lán)色LED零位批示燈在閥芯電信號(hào)不大于10%時(shí)才亮。 An understanding of the checker load switch is important for successful use of the Checker，when the spool signal is a current (± 10mA or 4-20mA). When the valve has a current output there must be a path through which the current can flow，for the Checker to be able to measure the current. When the plant lectronics do no provide this load，or the Checker is not connected to the plant electronics，the Checker load switch connects a 100 Ohm load to ground (0V) on the spool signal，enabling a current to flow. 檢查員理解負(fù)荷開(kāi)關(guān),并成功運(yùn)用檢查是很重要。當(dāng)滑閥信號(hào)電流（± 10mA 或 4-20mA）當(dāng)閥門具備一種輸出電流必要有能檢測(cè)測(cè)量當(dāng)前流通電流。當(dāng)電路不提供負(fù)荷，或者檢查沒(méi)有連接到電路電子原件，檢測(cè)員要把負(fù)荷開(kāi)關(guān)連接到100歐姆負(fù)載到接地（0V）使電流信號(hào)流通，才干檢測(cè)。 Note that a six position rotary switch is used to select the five feedback signals. The fifth and sixth positions both select 4-20mA signal. 注:6個(gè)位置旋轉(zhuǎn)開(kāi)關(guān)是用來(lái)選取五個(gè)反饋信號(hào). 第五檔位和第六檔位4-20mA都選取位置信號(hào)。 1.4.3 Power 電源 1.4.3.1 24V models 24V模式 The 24V LED illuminates with both plant 24V and the external 24V supply. The external 24V is connected via the large black connector below the LED. 這里24V LED顯示燈電源有工廠工作24V電壓電源或者有外部24V電壓電源提供電源。外部電源連在24V LED顯示燈下面大黑色插孔上。 The checker LED indicates the internal ±15V supply is healthy. This supply is used to power only the Valve Checker internal electronics. The valve and internal ±15V regulators are always powered by the external 24V，regardless of the presence of plant 24V. When there is no external supply the plant 24V powers the valve and internal regulators. 檢測(cè)員LED批示燈正常工作是由±15V內(nèi)部電壓提供，這個(gè)電壓僅用于提供檢測(cè)儀內(nèi)部電子元件使用。不論有24V工廠工作電源，或沒(méi)有外部電源提供24V工廠電源提供應(yīng)閥和調(diào)節(jié)器，±15V電壓和閥工作24V電壓都是由外部24V電源提供。 1.4.3.2 ±15V models ±15V模式 The 24V LED illuminates when the external 24V supply is connected. The plant ±15V LED’s illuminate when the plant ±15V supply is present. The checker LED indicates the internal ±15V supply is healthy. When the checker is powered from the plant ±15V the valve is powered from that supply as well. 24V LED批示燈亮是表達(dá)與外部24V電壓電源連接通。當(dāng)工廠現(xiàn)場(chǎng)提供±15V電壓電源時(shí)±15V LED批示燈會(huì)亮。檢測(cè)儀顯示內(nèi)部電壓±15V供應(yīng)正常，如果檢測(cè)閥工作電壓是±15V，那么這也能正常提供閥檢測(cè)使用。 When external 24V is present，the checker internal regulators are powered from that supply，regardless of the presence of the plant supply and the valve in turn is powered form the internal regulators. 當(dāng)外部提供24V電壓，檢測(cè)器內(nèi)部調(diào)節(jié)穩(wěn)壓來(lái)自這個(gè)電源，不論工廠提供閥工作電壓都要通過(guò)檢測(cè)儀內(nèi)部解決器后供應(yīng)閥。 1.4.4 Control 控制 This switch selects the two operating modes: 旋轉(zhuǎn)開(kāi)關(guān)可以選取兩個(gè)操作模式： - In Checker mode valve Q commands and valve enable are generated by the Checker，with the valve generated signals of spool position，enable OK and valve OK，available to be monitored on the Valve Checker test points and passed back to the plant electronics. 在檢測(cè)模式下，檢測(cè)員可以操作Q指令和使被檢測(cè)閥動(dòng)作，產(chǎn)生作用閥電信號(hào)和閥芯位置檢測(cè)信號(hào)，來(lái)判斷使用和閥狀態(tài)正常。檢測(cè)員可以在監(jiān)測(cè)檢測(cè)點(diǎn)上記錄下輸入輸出電信號(hào)信息。 - In Plant mode valve Q commands and valve enable are generated by the plant electronics，with the valve generated signals monitored in the same way as in checker mode. 在工廠工作模式下，閥門Q指令和閥門產(chǎn)生電信號(hào)通過(guò)工廠電氣設(shè)備，閥檢測(cè)信號(hào)產(chǎn)生方式和“檢測(cè)模式”產(chǎn)生是同樣。 Note that a three position rotary switch is used to select between checker and plant modes. The first and second positions both select plant mode. 注:三個(gè)位置旋轉(zhuǎn)開(kāi)關(guān)是用來(lái)選取檢查者,之間 　　工廠模式。第一和第二位置都選廠模式。 1.4.5 Enable 啟動(dòng) The enable LED illuminates when the enable signal to the valve is positive. The enable signal to the valve comes from the plant electronics when plant mode is selected. When checker mode is selected it comes from the enable on switch. However，the enable to the valve can be turned off by selecting master off when either plant or checker mode is selected. 當(dāng)閥門啟動(dòng)信號(hào)呈陽(yáng)性，啟動(dòng)批示燈亮起。當(dāng)選取工廠工作模式，閥工作勉勵(lì)電信號(hào)來(lái)源工廠工作電源提供。當(dāng)打啟動(dòng)動(dòng)開(kāi)關(guān)，“檢測(cè)模式”激活啟用，但是，當(dāng)選取“工廠工作模式”或“檢測(cè)模式”時(shí)，這個(gè)閥開(kāi)關(guān)可以關(guān)掉選取模式。 As well as enabling the valve，the enable signal also enables the Valve Checker output signals derived from either the checker itself，or the plant electronics. 通過(guò)閥門檢測(cè)員輸出控制信號(hào)，來(lái)檢測(cè)閥門，閥門信號(hào)和檢測(cè)儀自身工廠工作電子元件電源。 This provides a safety feature that quickly removes all signals in the event of damaging or dangerous process movements. Simply selecting master off turns off all signal lines to the valve. 這個(gè)提供一種安全檢測(cè)辦法，迅速檢測(cè)和清除關(guān)閉所有有關(guān)信號(hào)事故、危險(xiǎn)動(dòng)作進(jìn)程。只需簡(jiǎn)樸關(guān)掉控制信號(hào)就可以切斷所有信號(hào)線。 The enable OK LED illuminates when the enable OK signal form the valve is positive. 當(dāng)來(lái)自閥勉勵(lì)正常時(shí)，LED照明啟用（亮）。 1.4.6 Valve Connector 閥插孔連接 All the test points in this section are wired directly to the valve connector. This enables the actual voltage on the valve’s input pins to be measured，regardless of the mode selected. A knowledge of the valve input impedance is sometimes necessary to gain benefit from this measurement. 在這某些里所有測(cè)試點(diǎn)都與閥門直接連接，這個(gè)檢測(cè)儀輸入插腳是來(lái)測(cè)量閥實(shí)際電壓，無(wú)論選取什么控制模式，對(duì)于閥輸入阻抗有較好理解也要來(lái)源這種測(cè)量。 This section also contains the valve OK LED. The valve OK signal is an output from the valve. 這某些面板同樣包括檢測(cè)閥正常信號(hào)燈“OK LED”，檢測(cè)儀顯示正常信號(hào)也來(lái)源閥輸出。 2. SPECIFICATION 規(guī)格闡明 Q Command Outputs Q指令輸出 ± 10V， ±10mA, 4-20mA Q Command Test Point Q指令測(cè)試點(diǎn) 0 to ± 10V Q Command Q指令 Output swing 輸出范疇 ±10V，±20mA Spool Inputs 線圈可調(diào)范疇 2.5 to 13.5V，±10V ferential, ±10V single ended，± 10mA，4-20mA.