產(chǎn)品詳情
為了使負(fù)載方向變化的工作機(jī)構(gòu)能得到很好控制,另外一個(gè)PI控制器將被運(yùn)用到有桿腔的壓力控制器中,當(dāng)負(fù)載方向改變后,無(wú)桿腔的壓力將減??;如果仍將有桿腔維持一個(gè)很低的壓力,當(dāng)負(fù)載很大時(shí),液壓缸將向反方向運(yùn)動(dòng)。此時(shí)我們可用所增加的PI控制器監(jiān)視無(wú)桿腔壓力的變化,當(dāng)PI控制器檢測(cè)到無(wú)桿腔壓力低于所設(shè)定的參考值時(shí),將提高有桿腔壓力控制器所設(shè)定的壓力,從而保證系統(tǒng)的正常工作。Ultronics液壓控制系統(tǒng)Ultronics公司是一家集設(shè)計(jì)、研究和制造的電子液壓技術(shù)公司。
ALLEN BRADLEY 193-EA2KE / 193EA2KE (USED TESTED CLEANED)
ALLEN BRADLEY B41 / B41 (USED TESTED CLEANED)
ALLEN BRADLEY B50 / B50 (USED TESTED CLEANED)
ALLEN BRADLEY B47 / B47 (USED TESTED CLEANED)
ALLEN BRADLEY 2294R-NX1-850DON / 2294RNX1850DON (RQANS1)
ALLEN BRADLEY 113497-7 / 1134977 (USED TESTED CLEANED)
ALLEN BRADLEY 1497-D-ABDX-3-N / 1497DABDX3N (RQANS2)
ALLEN BRADLEY 47SN1-4001 / 47SN14001 (USED TESTED CLEANED)
ALLEN BRADLEY 40863-012-51 / 4086301251 (USED TESTED CLEANED)
ALLEN BRADLEY 702-BOA91 / 702BOA91 (USED TESTED CLEANED)
ALLEN BRADLEY 509-BOD-A2E-90 / 509BODA2E90 (USED TESTED CLEANED)
ALLEN BRADLEY 140UE-JTF3-D20 / 140UEJTF3D20 (RQANS1)
ALLEN BRADLEY 72-A83 / 72A83 (RQANS1)
ALLEN BRADLEY 80173-108-01 / 8017310801 (USED TESTED CLEANED)
ALLEN BRADLEY 800H-FPXJM6A / 800HFPXJM6A (NEW IN BOX)
ALLEN BRADLEY 45225-2 / 452252 (USED TESTED CLEANED)
ALLEN BRADLEY 6228-616 / 6228616 (USED TESTED CLEANED)
ALLEN BRADLEY 2755-PT1 / 2755PT1 (USED TESTED CLEANED)
ALLEN BRADLEY 4011682535 / 4011682535 (USED TESTED CLEANED)
ALLEN BRADLEY E-530A-24V / E530A24V (USED TESTED CLEANED)
ALLEN BRADLEY 74102-404-02A / 7410240402A (USED TESTED CLEANED)
ALLEN BRADLEY 194E-A00-1753 / 194EA001753 (USED TESTED CLEANED)
ALLEN BRADLEY 4011682438 / 4011682438 (USED TESTED CLEANED)
BECKHOFF KL1104
BECKHOFF KL2124
BECKHOFF KL1124
BECKHOFF KL9100
BECKHOFF KL9190
BECKHOFF Touchscreen CP6903!
BECKHOFF KL2134 4-CHANNEL
BECKHOFF KL2408 低價(jià)丶盡在福建鴻飛達(dá)科技
BECKHOFF EL2940 低價(jià)丶盡在福建鴻飛達(dá)科技
BECKHOFF ZK1020-0101-0
BECKHOFF OPERATOR INTERFACE C3220TP HS6237 V2.2B
BECKHOFF CP9030_4A ISA CP-Link Cards
BECKHOFF AX2503-B510 Series Digital Compact Servo Drive
BECKHOFF 2 x ANALOG INPUT RTD MODULE KL3202
BECKHOFF C9900-U330
BECKHOFF POWER SUPPLY TERMINAL KL9510
BECKHOFF KL9510 低價(jià)丶盡在福建鴻飛達(dá)科技
BECKHOFF BK2000 KL2134 KL1164 KL9210 KL2502 KL4032 KL3351 低價(jià)丶盡在福建鴻飛達(dá)科技
BECKHOFF AL2403 LINEAR SERVO MOTOR AL2403-0001
BECKHOFF KL9505
BECKHOFF CP6003-1001
BECKHOFF KL1702
BECKHOFF AX2006 S60600-520
BECKHOFF BK5120 KL1418 KL2408 KL1114 KL2134 KL9210 KL9010
BECKHOFF BK2000
BECKHOFF ZK1052-6152 低價(jià)丶盡在福建鴻飛達(dá)科技
BECKHOFF THK SKR4620C540L
BECKHOFF KL3052
BECKHOFF C9900-U330
BECKHOFF IL2302B310-0000 IL2302B3100000
BECKHOFF AM3043-1E41-0000
BECKHOFF II/O LIGHTBUS COUPLER KOPPLER BK2000
BECKHOFF KL9210
BECKHOFF Digital Servo Drive AX2501-0000 低價(jià)丶盡在福建鴻飛達(dá)科技
BECKHOFF AM3024-0D20-0000 低價(jià)丶盡在福建鴻飛達(dá)科技
BECKHOFF IL2301-B520
溫度儀表系統(tǒng)的指示值突然變到或,一般為儀表系統(tǒng)故障。因?yàn)闇囟葍x表系統(tǒng)測(cè)量滯后較大,不會(huì)發(fā)生突然變化。此時(shí)的故障原因多是熱電偶、熱電阻、補(bǔ)償導(dǎo)線斷線或變送器放大器失靈造成。溫度控制儀表系統(tǒng)指示出現(xiàn)快速振蕩現(xiàn)象,多為控制參數(shù)PID調(diào)整不當(dāng)造成。溫度控制儀表系統(tǒng)指示出現(xiàn)大幅緩慢的波動(dòng),很可能是由于工藝操作變化引起的,如當(dāng)時(shí)工藝操作沒(méi)有變化,則很可能是儀表控制系統(tǒng)本身的故障。溫度控制系統(tǒng)本身的故障分析步驟:檢查調(diào)節(jié)閥輸入信號(hào)是否變化,輸入信號(hào)不變化,調(diào)節(jié)閥動(dòng)作,調(diào)節(jié)閥膜頭膜片漏了;檢查調(diào)節(jié)閥定位器輸入信號(hào)是否變化,輸入信號(hào)不變化,輸出信號(hào)變化,定位器有故障;檢查定位器輸入信號(hào)有變化,再查調(diào)節(jié)器輸出有無(wú)變化,如果調(diào)節(jié)器輸入不變化,輸出變化,此時(shí)是調(diào)節(jié)器本身的故障。目前國(guó)內(nèi)市場(chǎng)排水管道的應(yīng)用狀況目前,我國(guó)建筑排水管道工程應(yīng)用主要有兩種:UPVC排水管和鑄鐵管。壓力排水管較多是選用鍍鋅襯塑管。在相關(guān)政策下,鍍鋅鋼管、鑄鐵管由于能耗高,污染大,價(jià)格高將逐漸退出歷史舞臺(tái)。塑料管、復(fù)合管成了管道系統(tǒng)的常用管材,特別是排水管材,UPVC幾乎是選材,占我國(guó)塑料管行業(yè)產(chǎn)量的5%左右,是我國(guó)應(yīng)用為廣泛,技術(shù)成熟,用戶(hù)熟悉的塑料管材。但在使用過(guò)程中,UPVC排水管存在著諸多的問(wèn)題,如老化、耐熱性差、抗沖擊較差等。
Ovation 2840A18G03
Ovation 2840A18G04
Ovation 2840A19G06
Ovation 2840A19G07
Ovation 2840A20G01
Ovation 2840A20G02
Ovation 2840A20G03
Ovation 2840A21G01
Ovation 2840A21G02
Ovation 2840A21G04
Ovation 2840A21G05
Ovation 2840A38G01
Ovation 2840A49G01
Ovation 2840A77G02
Ovation 2840A78G01
Ovation 2840A79G01
Ovation 2840A80G04
Ovation 2840A80G06
Ovation 2840A80G07
Ovation 2840A80G08
Ovation 2D34347G06
Ovation 2D34347G08
BALLUFF BES 12,0-KH-2S/W PROXIMITY SENSOR MOUNT, NEW #159372
BALLUFF BES 12,0-KH-2S/W PROXIMITY SENSOR MOUNT, NEW #159372
Balluff BDS 21MR05-NT-PU-03-SA2 Induktiver Sensor - ungebraucht! -
Balluff BDS 21MR08-NT-PU-03-SA2 Induktiver Sensor - ungebraucht! -
Balluff BDS 21MR05-NT-PU-03-SA2 Induktiver Sensor - ungebraucht! -
Balluff B0S 18M-PA-1QB Photoelectric Sensor
Balluff B0S 18M-PA-1QB Photoelectric Sensor
BALLUFF IDENTIFIKATIONS- SYSTEM BIS C-600-007 inkl Vers
BALLUFF BES007Y, BES M18MI-POC80B-S04K3, Inductive sensor - NEW
BALLUFF BES007Y, BES M18MI-POC80B-S04K3, Inductive sensor - NEW
Balluff Proximity Switch BES 516-324-G-E5-D-S4 Used #62869
Balluff - BES Q40KFU-PSC35Z-S04G-011 Inductive Proximity sensor
Balluff BKS-S 10-4 Steckverbinder
Balluff BNS 813-FR-60-185 Limit Switch - Unused In Box
BALLUFF BGL0039 BGL 50C-003-S4 50mm Gabellichtschranke Lichtschranke -used-
Balluff C04ANL7 Female micro Straight field connector
Balluff Identification-System BIS C-300-PU1-05 Schreib- und Lesekopf Neu OVP
Balluff Induktiver Sensor BES MO8EE-PSC20B-S04G
BALLUFF PROXIMITY SENSOR BAW-M18MI-UAC50B-S04G BAWM18MIUAC50BS04G
BALLUFF BNS-819-D08-R16-100-10 LIMIT SWITCH NEW 160066
Balluff Netzteil BES 516-706-B-3 (115/230VAC - 24VDC) (D.267)
BALLUFF BLE 18M-BS-1LT-S4-C / BLE18MBS1LTS4C, photoelectric sensor
Balluff Proximity Switch BES 516-324-E4-C-S4-003 Used #58496
聯(lián)系人:小葉
公司名稱(chēng):福建鴻飛達(dá)自動(dòng)化科技有限公司
公司地址:福州市閩侯高新區(qū)正榮財(cái)富中心(SOHOB座8層)
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