海寶2604-故障排除

1、系統(tǒng) 故障排除 Page 2Copyright, 2005 Hypertherm, Inc.These materials cannot be reproduced in any form without the permission of Hypertherm, Inc.關鍵部分關鍵部分:互鎖 氣體引導弧浪涌回路斬波器 電流控制控制電壓 冷卻液CNC控制器和調高接口易損件 Page 3Copyright, 2005 Hypertherm, Inc.These materials cannot be reproduced in any form without the permission o

2、f Hypertherm, Inc.在上電時等離子電源會檢查一些數(shù)據(jù)后判定自身是否安全. 對于高性能等離子互鎖出錯的檢測是由傳感器來讀取并反饋給DSP (數(shù)字信號處理器). 這就遠勝于鏈式開關信號LED的顯示(如 HT2000).HPR 會將出錯指示顯示在氣體控制器上(手動氣體控制器)或顯示在CNC控制器上(自動氣體控制器). RHF door switchXformer tempswitchCoolant levelswitchShield pressure switchPlasma pressure switchCoolant flowswitch前面板上的互鎖前面板上的互鎖 LEDsHT

3、2000Xformer tempsensorShield pressure switchCoolant flowswitchPlasma pressure sensorCoolant levelsensorHPRHPR control board互鎖互鎖 LEDs出錯出錯 顯示顯示LEDNs Page 4Copyright, 2005 Hypertherm, Inc.These materials cannot be reproduced in any form without the permission of Hypertherm, Inc.錯誤指示錯誤指示 LEDs:冷卻液流量冷卻液流量

4、LED 會亮會亮,如果流量低于如果流量低于.6 gpm (2.3 lpm)壓力壓力 會亮會亮,如果是如果是: 等離子氣預流壓力低于等離子氣預流壓力低于15 psi (103 kPa) 等離子氣切割流壓力低于等離子預流氣壓力低于等離子氣切割流壓力低于等離子預流氣壓力低于50 psi (345 kPa) 保護氣預流壓力低于保護氣預流壓力低于2 psi (14kPa) 任何氣體壓力大于任何氣體壓力大于99 psi (683 kPa)電壓電壓 LED 會亮會亮, 如果輸入電壓超過如果輸入電壓超過15% 的上下波動的上下波動.溫度溫度 LED會亮會亮,如果是如果是: 斬波器溫升超過斬波器溫升超過83 C

5、 (180 F) 冷卻液溫升超過冷卻液溫升超過70 C (158 F) 主變壓器溫升超過主變壓器溫升超過 150 C (302 F) Page 5Copyright, 2005 Hypertherm, Inc.These materials cannot be reproduced in any form without the permission of Hypertherm, Inc.冷卻液溫度和流量傳感器冷卻液溫度和流量傳感器 在等離子電源箱右側在等離子電源箱右側流量傳感器 溫度傳感器 Page 6Copyright, 2005 Hypertherm, Inc.These materia

6、ls cannot be reproduced in any form without the permission of Hypertherm, Inc.冷卻液溫度和流量傳感器信號接到控制板冷卻液溫度和流量傳感器信號接到控制板上的上的J201.在在 2 和和3 針腳上測試流量傳感器的輸出針腳上測試流量傳感器的輸出5VDC = 4.5 gpm (17 lpm)臨界點是臨界點是 .6 gpm (0.2 lpm) or .67VDC (最小最小)在在5 和和6針腳上測試溫度傳感器的輸出針腳上測試溫度傳感器的輸出臨界點是臨界點是 2.8 VDC (最大最大) Page 7Copyright, 200

7、5 Hypertherm, Inc.These materials cannot be reproduced in any form without the permission of Hypertherm, Inc.所有所有Hypertherm 等離子切割系統(tǒng)有兩等離子切割系統(tǒng)有兩個主要電氣部分組成個主要電氣部分組成:弧電源部分弧電源部分: 這部分電路用于產(chǎn)生電弧. 包含主接觸器,主變壓器, 斬波器和電感. 控制電壓部分控制電壓部分: 這部分用于其它功能. 包含控制變壓器, 電源分配板, 各種傳感器和控制裝置. 輸出輸出:24, 120 和 240 VAC 到電源分配板輸出輸出:215 VA

8、C 到斬斬波器波器控制變壓器控制變壓器主變壓器主變壓器主接觸器主接觸器,HPR 接線樁接線樁用戶提供的用戶提供的開關開關HyPerformance PAC480 VAC 3480 VAC 1 Page 8Copyright, 2005 Hypertherm, Inc.These materials cannot be reproduced in any form without the permission of Hypertherm, Inc.產(chǎn)生穩(wěn)定的弧是最重要的,與此相關的部件在等離子電源中的多要參與:引導弧電路浪涌電路斬波器單元弧 電流控制 Page 9Copyright, 2005

9、Hypertherm, Inc.These materials cannot be reproduced in any form without the permission of Hypertherm, Inc.一些相關的部件按時序工作來建立弧HPR130 Torch CircuitMachine On - No Start Signal4.00 VDC = 100 AmpsGRNF3J2+15SignalShieldCS3L1C1+ OutWHTT1 High Voltage- OutI/O PCBControl PCBGRNDC+J12DC-K1NozzleDC+ PilotCR1H9J

10、3Common(OPEN)0.0 VDCHigh Frequency ConsoleH8-15Chopper ControlHPR ChopperJ10.0 VDCCS1Work (+)Power Distribution BoardBLKSignalJ301J5+15Electrode (-)REDJ10T2 Air CoreBetween WHT and BLKJ1Spark Gaps-15Common(3) 1400 pFCapacitors150 AJ3J200WHTPilot ArcControllerBLKRED3412781112123411121314+36HPR130 Tor

11、ch CircuitPre-Flow/Pilot Arc Mode4.00 VDC = 100 AmpsGRNF3J2+15SignalShieldCS3L1C1+ OutWHTT1 High Voltage- OutI/O PCBControl PCBGRNDC+J12DC-K1NozzleDC+ PilotCR1H9J3Common(CLOSED)0.0 VDCHigh Frequency ConsoleH8-15Chopper ControlHPR ChopperJ1.8 to 1.4 VDCCS1Work (+)Power Distribution BoardBLKSignalJ301

12、J5+15Electrode (-)REDJ10T2 Air CoreBetween WHT and BLKJ1Spark Gaps-15Common(3) 1400 pFCapacitors150 AJ3J200WHTPilot ArcControllerBLKREDPilot Arc3412781112123411121314+36Work (+)HPR130 Torch CircuitAfter Arc Transfer4.00 VDC = 100 AmpsGRNF3J2+15SignalShieldCS3L1C1+ OutWHTT1 High Voltage- OutI/O PCBCo

13、ntrol PCBGRNDC+J12DC-K1NozzleDC+ PilotCR1H9J3Common(OPEN)5.2 VDCHigh Frequency ConsoleH8-15Chopper ControlHPR ChopperJ15.2 VDCCS1Power Distribution BoardBLKSignalJ301J5+15Electrode (-)REDJ10T2 Air CoreBetween WHT and BLKJ1Spark Gaps-15Common(3) 1400 pFCapacitors150 AJ3J200WHTPilot ArcControllerBLKRE

14、DCutting Arc3412781112123411121314+36 Page 13Copyright, 2005 Hypertherm, Inc.These materials cannot be reproduced in any form without the permission of Hypertherm, Inc.該板是所有相關部件工作的起點該板是所有相關部件工作的起點電源分配板控制板 Page 14Copyright, 2005 Hypertherm, Inc.These materials cannot be reproduced in any form without

15、 the permission of Hypertherm, Inc. 缺相檢測. 三相進線通過F5, F6 和F7保險后后進入電源分配板. 任何一個保險壞了, 表明該板有問題.F5 F6 F7 Page 15Copyright, 2005 Hypertherm, Inc.These materials cannot be reproduced in any form without the permission of Hypertherm, Inc.通過該板輸出的電壓也安裝有保險通過該板輸出的電壓也安裝有保險F2 是用于 24 VAC 在繼電器前F3是用于120 VAC F1 是用于 24

16、VAC 在繼電器后F4 是用于240 VAC Page 16Copyright, 2005 Hypertherm, Inc.These materials cannot be reproduced in any form without the permission of Hypertherm, Inc.輸出的電壓有輸出的電壓有 LEDs指示指示:D1 亮 表明電壓被送到主接觸器D2亮 表明電壓被送到引導弧繼電器D5亮 表明電壓被送到高頻箱的高壓變壓器.亮 表明電壓被送到I/O板的浪涌繼電器 Page 17Copyright, 2005 Hypertherm, Inc.These materi

17、als cannot be reproduced in any form without the permission of Hypertherm, Inc.在該板上的電壓也有在該板上的電壓也有 LEDs 指示指示,送到冷卻電機的也有送到冷卻電機的也有LED指示指示.D33亮標明板上有+15 VDC D32亮標明板上有-15VDCD31亮標明板上有+5 VDC.D26 亮表明電壓被送到冷卻泵電機D25 亮標明板上有+24 VDC Page 18Copyright, 2005 Hypertherm, Inc.These materials cannot be reproduced in any

18、form without the permission of Hypertherm, Inc.定期檢查主接觸器的觸點定期檢查主接觸器的觸點. Page 19Copyright, 2005 Hypertherm, Inc.These materials cannot be reproduced in any form without the permission of Hypertherm, Inc.有凹痕或磨損的觸點會引起缺相有凹痕或磨損的觸點會引起缺相,損壞斬波器損壞斬波器. Page 20Copyright, 2005 Hypertherm, Inc.These materials can

19、not be reproduced in any form without the permission of Hypertherm, Inc.HPR新型斬波器新型斬波器. Page 21Copyright, 2005 Hypertherm, Inc.These materials cannot be reproduced in any form without the permission of Hypertherm, Inc.LED 1 占載率占載率D2 5V 電壓電壓LED2 18V 電壓電壓 Page 22Copyright, 2005 Hypertherm, Inc.These ma

20、terials cannot be reproduced in any form without the permission of Hypertherm, Inc.HPR 斬波器的特點斬波器的特點電流輸出從100A增加到130A.并行的100-A IGBTs. 簡化的電路.斬波器斬波器上沒有過流保護.只要控制板不輸出信號給斬波器它有不會有輸出斬波器它有不會有輸出. Page 23Copyright, 2005 Hypertherm, Inc.These materials cannot be reproduced in any form without the permission of H

21、ypertherm, Inc.HPR 斬波器的功能斬波器的功能 :輸入整流橋連同鋁電解電容把輸入的交流電轉換成直流電.IGBTs 擔當高速并行開關(14 KHz) 來調節(jié)電流的輸出.控制板對斬波器的輸出起到控制和監(jiān)控. Page 24Copyright, 2005 Hypertherm, Inc.These materials cannot be reproduced in any form without the permission of Hypertherm, Inc.檢查開路電壓檢查開路電壓:開路電壓是斬波器不帶負載是開路電壓是斬波器不帶負載是的輸出的輸出(沒有弧轉移沒有弧轉移).關閉

22、電源.拔去高頻箱中高壓變壓器上的120V插頭.如圖所示.拔去插頭拔去插頭 Page 25Copyright, 2005 Hypertherm, Inc.These materials cannot be reproduced in any form without the permission of Hypertherm, Inc.檢查開路電壓檢查開路電壓: 取下并檢查斬波器保險 F3*.給出起動信號, 檢查斬波器上輸入整流橋的輸出端上電壓是否是310VDC檢查斬波器下部”WORK” 和”TORCH”連接端上的電壓是否是310V.如上述電壓沒有的話, 請按照維修章節(jié)中的描述做斬波器測試.* N

23、ote: The chopper fuse in the HPR130 is on the positive lead. Removing it does not disconnect the chopper from the electrode Page 26Copyright, 2005 Hypertherm, Inc.These materials cannot be reproduced in any form without the permission of Hypertherm, Inc.切割電流通過切割電流通過2個電流傳感器被檢測個電流傳感器被檢測.CS3 弧轉移電流傳感器弧轉

24、移電流傳感器CS1 是用于斬波器電流輸出的調節(jié)是用于斬波器電流輸出的調節(jié).兩個傳感器的輸出和電流輸出是線性關系:4.00 VDC = 100 amps Page 27Copyright, 2005 Hypertherm, Inc.These materials cannot be reproduced in any form without the permission of Hypertherm, Inc.電流傳感器的信號接到控制板上電流傳感器的信號接到控制板上J3.200插插頭上頭上.CS3 的輸出的輸出(弧轉移電流弧轉移電流) 在在pins 3 和和4.CS1 的輸出的輸出(斬波器電流斬

25、波器電流) 在在pins 13 和和14.紅紅 +15V綠綠 -15V白白 信號信號黑黑 公共端公共端切割過程中不能斷開電流傳感器信號切割過程中不能斷開電流傳感器信號 Page 28Copyright, 2005 Hypertherm, Inc.These materials cannot be reproduced in any form without the permission of Hypertherm, Inc.控制板上有兩排控制板上有兩排LED 來顯來顯示不同的功能和系統(tǒng)的狀示不同的功能和系統(tǒng)的狀況況.LEDN 301LEDN 300J I H G F E D C B AJIHG

26、FEDCBA Page 29Copyright, 2005 Hypertherm, Inc.These materials cannot be reproduced in any form without the permission of Hypertherm, Inc.A 運動信號: 弧轉移被感知, CNC應該探測到運動信號.B 錯誤: 輸出給CNC表明有錯誤被數(shù)字處理器(DSP)檢測到.C RD 錯誤: 輸出給CNC表明在漸降過程中有錯誤.D 和 E 不用F 引導弧使能: 打開啟動電路.G 拐角: CNC發(fā)出信號給等離子電源要求降低切割電流. 一般用于在拐角的切割. Page 30Cop

27、yright, 2005 Hypertherm, Inc.These materials cannot be reproduced in any form without the permission of Hypertherm, Inc.H 穿孔: 從CNC接受到穿孔完成信號. I 保持: 表明保持信號在. 電源會等待從CNC發(fā)出的穿孔完成信號.J 啟動信號: 等離子電源接受到啟動信號. Page 31Copyright, 2005 Hypertherm, Inc.These materials cannot be reproduced in any form without the per

28、mission of Hypertherm, Inc.A 高壓變壓器: 啟動高壓變壓器.B 泵: 開起冷卻液馬達.C 主接觸器: 讓主接觸器吸合.D 引導弧繼電器: 讓引導弧繼電器吸合.E 不用F 浪涌選擇: 讓浪涌繼電器吸合.等離子電源被設為劃線工藝.G, H and I 不用J 缺相: 該燈條亮表明沒有缺相. Page 32Copyright, 2005 Hypertherm, Inc.These materials cannot be reproduced in any form without the permission of Hypertherm, Inc.等離子電源地址:HPR系

29、統(tǒng)允許系統(tǒng)允許4臺等離子電源受一個臺等離子電源受一個CNC控制控制. 每個電源有兩個地址可以設定每個電源有兩個地址可以設定 .J303 上跳線上跳線 提供了弧轉移和運動信號通路地址提供了弧轉移和運動信號通路地址S100 撥碼開關提供串行撥碼開關提供串行通訊地址通訊地址.串接終點跳線串接終點跳線 Page 33Copyright, 2005 Hypertherm, Inc.These materials cannot be reproduced in any form without the permission of Hypertherm, Inc.多系統(tǒng)串接中的最后一個單元必須被設定跳線.必

30、須對串行通訊的數(shù)據(jù)流做一個終斷必須對串行通訊的數(shù)據(jù)流做一個終斷.以防止信號回頭傳遞造成數(shù)據(jù)以防止信號回頭傳遞造成數(shù)據(jù)丟失丟失. 多系統(tǒng)串接中的最后一個單元J107J108多系統(tǒng)串接中的其他單元 Page 34Copyright, 2005 Hypertherm, Inc.These materials cannot be reproduced in any form without the permission of Hypertherm, Inc.轉移信號通路在J303.CNC 接口電纜有接口電纜有4對通路讓對通路讓 CNC 定義每一個電源的弧轉移信號的定義每一個電源的弧轉移信號的通路通路,

31、也稱作運動信號也稱作運動信號. 跳線必須按下圖所示跳線必須按下圖所示:Unit 11 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 Unit 4Unit 3Unit 2 Page 35Copyright, 2005 Hypertherm, Inc.These materials cannot be reproduced in any form without the permission of Hypertherm, Inc.電源定義串行通訊. HPR系統(tǒng)允許系統(tǒng)允許4臺等離子電源受一個臺等離子電源受一個CNC控制控

32、制. 接線圖接線圖 S100Switch 1 is ON側面看側面看 switch 1OFF側面看側面看 switch 1ON1 2 3 4 OFF1 2 3 4 OFF1 2 3 4 OFF1 2 3 4 OFF1 2 3 4 OFFUnit 1Unit 2Unit 3Unit 4這些設定是用于串行通訊時對這些設定是用于串行通訊時對 每個等離子電源的識別每個等離子電源的識別. Page 36Copyright, 2005 Hypertherm, Inc.These materials cannot be reproduced in any form without the permissio

33、n of Hypertherm, Inc.熱交換器熱交換器水箱水箱冷卻液溫度開關冷卻液溫度開關過濾器過濾器泵泵開關閥開關閥流量開關流量開關止回閥止回閥分配器分配器高頻箱高頻箱割槍割槍HPR要求一個封閉的水冷卻系統(tǒng),流量為每分鐘一加侖 Page 37Copyright, 2005 Hypertherm, Inc.These materials cannot be reproduced in any form without the permission of Hypertherm, Inc.冷卻液流量問題引發(fā)冷卻液流量問題引發(fā):流量開關不滿足 (冷卻液出錯).易損件壽命短.割槍和易損件發(fā)熱. P

34、age 38Copyright, 2005 Hypertherm, Inc.These materials cannot be reproduced in any form without the permission of Hypertherm, Inc.冷卻系統(tǒng)故障排除冷卻系統(tǒng)故障排除確保水箱是滿的.1.檢查在回水管上的流量為每分鐘一加侖. Page 39Copyright, 2005 Hypertherm, Inc.These materials cannot be reproduced in any form without the permission of Hypertherm,

35、Inc.在回水管上檢查流量在回水管上檢查流量3.按下氣體控制器電流調節(jié)按鈕強制水泵起動.回水管回水管 Page 40Copyright, 2005 Hypertherm, Inc.These materials cannot be reproduced in any form without the permission of Hypertherm, Inc.如果沒有流量如果沒有流量:檢查馬達是否得到240VAC.如果馬達沒轉,取下泵再看.6.如果馬達轉, 檢查聯(lián)軸節(jié)和泵自身.馬達馬達泵泵 Page 41Copyright, 2005 Hypertherm, Inc.These materia

36、ls cannot be reproduced in any form without the permission of Hypertherm, Inc.高頻火花隙引導弧繼電器浪涌回路引導弧控制手動起弧步驟弧轉移要建立等離子弧要建立等離子弧,必須要有一些裝置和過程來建立弧必須要有一些裝置和過程來建立弧 Page 42Copyright, 2005 Hypertherm, Inc.These materials cannot be reproduced in any form without the permission of Hypertherm, Inc.診斷引導弧問題診斷引導弧問題:檢查

37、高頻火花.檢查引導弧繼電器(CR1).檢查主接觸器的觸點(CON1).如果割槍沒有起弧, 斬波器有輸出,氣體沒有問題的, 那問題回出在引導弧回路上. Page 43Copyright, 2005 Hypertherm, Inc.These materials cannot be reproduced in any form without the permission of Hypertherm, Inc.診斷引導弧問題診斷引導弧問題:檢查浪涌回路 (稍遲). 檢查引導弧起動電路控制 (稍遲).檢查氣路有無損壞和受限制.檢查割槍電纜有無損壞和受限制.做氣體泄漏測試做斬波器測試. Page 44

38、Copyright, 2005 Hypertherm, Inc.These materials cannot be reproduced in any form without the permission of Hypertherm, Inc.Electrode (-)ShieldNozzleCH130 Chopper- Out+ Out120 Volts AC6000 Volts ACT1 High VoltageHigh Frequency Console(3) 1400 pFCapacitorsT2 Air CoreSpark Gaps Page 45Copyright, 2005 H

39、ypertherm, Inc.These materials cannot be reproduced in any form without the permission of Hypertherm, Inc.浪涌回路繼電器在浪涌回路繼電器在I/O板上板上.引弧繼電器有罩引弧繼電器有罩殼下殼下 Page 46Copyright, 2005 Hypertherm, Inc.These materials cannot be reproduced in any form without the permission of Hypertherm, Inc.繼電器功能繼電器功能:CR1: 引弧繼電器

40、使噴嘴和公件等電位,在起弧是必須吸合.K1: 浪涌繼電器功能是改變浪涌電容的沖電電阻的阻值在劃線過程中. 這將減小斬波器輸出電流.在劃線是必須吸合. Page 47Copyright, 2005 Hypertherm, Inc.These materials cannot be reproduced in any form without the permission of Hypertherm, Inc.HPR130 Surge Injection CircuitElectrode (-)Work (+)ShieldNozzleChopper OutputInductor OutputSur

41、ge Injection OutputPower Supply OutputPilot Arc StartThe output of the chopper is a series of pulsesAfter the inductor (L1) is charged its output is a series of pulses exactly out ofphase with the chopperThe surge injection capacitor (C1) discharges as soon as the circuit is established as the highf

42、requency breaks over between the electrode and the nozzleThe result is that there is enough current soon enough to establish thepilot arcC1CR1H9H8Pilot ArcControllerHPR Chopper-+101001010K+ Page 48Copyright, 2005 Hypertherm, Inc.These materials cannot be reproduced in any form without the permission

43、 of Hypertherm, Inc.Output currents as the pilot arc starts 時間電流輸出電流輸出電流浪涌電容放電斬波器 總電流 Page 49Copyright, 2005 Hypertherm, Inc.These materials cannot be reproduced in any form without the permission of Hypertherm, Inc.診斷浪涌回路故障診斷浪涌回路故障:檢查 R1, R2 和 R3 的阻值(手冊上有數(shù)據(jù)).檢查電容C1的狀態(tài).如果切割電流20 A或更小(劃線), K1 吸合. Page

44、 50Copyright, 2005 Hypertherm, Inc.These materials cannot be reproduced in any form without the permission of Hypertherm, Inc.控制板上發(fā)出控制板上發(fā)出”引導弧使能引導弧使能”信號信號打開起動電路板打開起動電路板. 這能夠快速去除這能夠快速去除噴嘴的接觸在弧轉移時噴嘴的接觸在弧轉移時. Page 51Copyright, 2005 Hypertherm, Inc.These materials cannot be reproduced in any form withou

45、t the permission of Hypertherm, Inc. 起動電路(引導弧控制) 功能是: 在引導弧建立前提供一個小的阻抗給電路. 通過短接H8 和H9來去除該板的控制.短接短接 H8 和和H9 Page 52Copyright, 2005 Hypertherm, Inc.These materials cannot be reproduced in any form without the permission of Hypertherm, Inc. Dip 開關 S100 設定串行通訊地址. 跳線開關 J303 指定“運動” 或 “弧轉移” 信號通過其對應的接口電纜線給到C

46、NC. 正因為4臺HPR 可以受控于一個CNC, 所以有必要給每個HPR設定不同的身份地址. Page 53Copyright, 2005 Hypertherm, Inc.These materials cannot be reproduced in any form without the permission of Hypertherm, Inc. 37 孔孔型插座. 兩條與之匹配的細線 一個單刀單擲開關19371836173516341533143213311230112910289278267256245234223212201插腳插腳 34 和和 15 要手動起弧, 你必須要有一個測

47、試接口: Page 54Copyright, 2005 Hypertherm, Inc.These materials cannot be reproduced in any form without the permission of Hypertherm, Inc.氣體系統(tǒng)割槍高度控制系統(tǒng)要建立等離子弧必須要有氣體來產(chǎn)生電子和形成弧要建立等離子弧必須要有氣體來產(chǎn)生電子和形成弧. Page 55Copyright, 2005 Hypertherm, Inc.These materials cannot be reproduced in any form without the permiss

48、ion of Hypertherm, Inc.HPR的用戶操作界面在氣體控制器上 Page 56Copyright, 2005 Hypertherm, Inc.These materials cannot be reproduced in any form without the permission of Hypertherm, Inc.在電流調節(jié)鈕上有出錯顯示窗在電流調節(jié)鈕上有出錯顯示窗: (所有代碼在手冊上能找到所有代碼在手冊上能找到)狀態(tài)開關必須選在錯誤指示上狀態(tài)開關必須選在錯誤指示上任何一個錯誤任何一個錯誤LED亮的時候亮的時候出錯顯示出錯顯示: Page 57Copyright,

49、2005 Hypertherm, Inc.These materials cannot be reproduced in any form without the permission of Hypertherm, Inc.HPR是采用 調節(jié)器來代替流量閥的系統(tǒng).主要的優(yōu)勢是調節(jié)器可以補主要的優(yōu)勢是調節(jié)器可以補償償 進氣口壓力進氣口壓力+/- 10 psi (69 kPa) 波動波動 Page 58Copyright, 2005 Hypertherm, Inc.These materials cannot be reproduced in any form without the permis

50、sion of Hypertherm, Inc.H35/F5 INO2 INAIR INN2 INV1V3V2V12V11V10V9V8V7V6V5V4V13V14V19V18V17V16V20Vent to AtmospherePR4PR3PR2PR1P4P3P2P1PLASMA (Clear)SHIELD (Gray)電磁閥電磁閥壓力傳感器壓力傳感器調節(jié)器調節(jié)器 Page 59Copyright, 2005 Hypertherm, Inc.These materials cannot be reproduced in any form without the permission of H

51、ypertherm, Inc.氣體泄露測試氣體泄露測試 #1對于第一個 20 秒氣體泄露測試 #1, 所有進氣口電磁閥關閉所有 “開關閥組”上的閥打開允許氣體系統(tǒng)中的壓力釋放到外部 Page 60Copyright, 2005 Hypertherm, Inc.These materials cannot be reproduced in any form without the permission of Hypertherm, Inc.H35/F5 INO2 INAIR INN2 INV1V3V2V12V11V10V9V8V7V6V5V4V13V14V19V18V17V16V20Vent t

52、o AtmospherePR4PR3PR2PR1P4P3P2P1PLASMA (Clear)SHIELD (Gray) Page 61Copyright, 2005 Hypertherm, Inc.These materials cannot be reproduced in any form without the permission of Hypertherm, Inc. Copyright, 2001 Hypertherm, Inc. These materials cannot be reproduced in any formwithout the permission of Hy

53、pertherm, Inc.氣體泄露測試氣體泄露測試 #1第一個 20 秒后“開關閥組” 上的閥關閉.所有壓力傳感器上讀數(shù)必須為零, 或接近零.監(jiān)控壓力 20分鐘,如果有上升,懷疑進氣閥有泄漏. Page 62Copyright, 2005 Hypertherm, Inc.These materials cannot be reproduced in any form without the permission of Hypertherm, Inc. Copyright, 2001 Hypertherm, Inc. These materials cannot be reproduced i

54、n any formwithout the permission of Hypertherm, Inc.H35/F5 INO2 INAIR INN2 INV1V3V2V12V11V10V9V8V7V6V5V4V13V14V19V18V17V16V20Vent to AtmospherePR4PR3PR2PR1P4P3P2P1PLASMA (Clear)SHIELD (Gray) Page 63Copyright, 2005 Hypertherm, Inc.These materials cannot be reproduced in any form without the permission of Hypertherm, Inc.氣體泄露測試氣體泄露測試 #2第一個20秒, “開關閥組” 上的閥關閉.所有進氣口閥打開,允許氣體系統(tǒng)中的壓力達到進氣口壓力. Page 64Copyright, 2005 Hypertherm, Inc.These materials cannot