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1764-MM2
發(fā)布者:fzjfx0001  發(fā)布時間:2019-08-12 19:17:17

1764-MM2現(xiàn)貨 in stock! 歡迎來電咨詢~。

1764-MM2


DCS 的維護(hù)可分為:日常維護(hù);預(yù)防性維護(hù)和故障維護(hù),日常維護(hù)和預(yù)防維護(hù)是在系統(tǒng)未發(fā)生故障所進(jìn)行的維護(hù)。故障維護(hù)發(fā)生在故障產(chǎn)生之后,往往 已造成系統(tǒng)部分功能失靈并對生產(chǎn)造成不良影響;相反,預(yù)防性維護(hù)是在系統(tǒng)正常運行時,對系統(tǒng)進(jìn)行有計劃的定期維護(hù),及時掌握系統(tǒng)運行狀態(tài)、消除系統(tǒng)故障隱 患、保證系統(tǒng)長期穩(wěn)定可靠地運行,形成定期維護(hù)的概念。實踐證明,定期維護(hù)能夠有效地防止DCS 突發(fā)故障的產(chǎn)生,形成可觀的間接經(jīng)濟(jì)效益。
  DCS 系統(tǒng)的日常維護(hù)
  系統(tǒng)的日常維護(hù)是DCS系統(tǒng)穩(wěn)定高效運行的基礎(chǔ),主要的維護(hù)工作有以下幾點:
  1) 完善DCS系統(tǒng)管理制度。
  2) 保證空調(diào)設(shè)備穩(wěn)定運行,保證室溫變化小于±5℃/h ,避免由于溫度、濕度急劇變化導(dǎo)致在系統(tǒng)設(shè)備上的凝露。
  3) 盡量避免電磁場對系統(tǒng)的干擾,避免移動運行中的操作站、顯示器等,避免拉動或碰傷設(shè)備連接電纜和通訊電纜等。
  4) 注意防塵,現(xiàn)場與控制室合理隔離,并定時清掃,保持清潔,防止粉塵對元件運行及散熱產(chǎn)生不良影響;
  5) 嚴(yán)禁使用非正版軟件和安裝與系統(tǒng)無關(guān)軟件。
  6) 做好控制子目錄文件的備份,各自控回路的PID 參數(shù)、調(diào)節(jié)器正反作用等系統(tǒng)數(shù)據(jù)記錄工作。
  7) 檢查控制主機(jī)、顯示器、鼠標(biāo)、鍵盤等硬件是否完好,實時監(jiān)控工作是否正常。
  8) 查看故障診斷畫面,是否有故障提示。
  預(yù)防維護(hù)
  有計劃地進(jìn)行主動性、預(yù)防性維護(hù),保證系統(tǒng)運行穩(wěn)定可靠。根據(jù)大修周期,利用大修進(jìn)行一次預(yù)防性的維護(hù),以掌握系統(tǒng)運行狀態(tài),消除故障隱患。大修期間對DCS 系統(tǒng)應(yīng)進(jìn)行徹底、全面的維護(hù),內(nèi)容包括:
  1) 系統(tǒng)冗余測試: 對冗余電源、服務(wù)器、控制器、通訊網(wǎng)絡(luò)進(jìn)行冗余測試。操作站、控制站停電檢修。包括計算機(jī)內(nèi)部、控制站機(jī)籠、電源箱等部件的灰塵清理。
  2) 系統(tǒng)供電線路檢修。并對UPS進(jìn)行供電能力測試和實施放電操作。
  3) 接地系統(tǒng)檢修。包括端子檢查、對接地電阻測試。
  大修后系統(tǒng)維護(hù)負(fù)責(zé)人應(yīng)確認(rèn)條件具備方可上電,并應(yīng)嚴(yán)格遵照上電步驟進(jìn)行。

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TELEMECANIQUE ATV-31H075M2A 0.75KW 220V NIB

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1764-MM2

Modicon AS-W907-015

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Advantech PCM7230-CK001

ALLEN-BRADLEY 1746-OB32 32 ch-DC Output Module For Programmable Controller sour

ABB BAILEY SYMPHONY CONTROLS DIGITAL IMASI23 ANALOG INPUT SLAVE MODULE 88109

ADEPT TECH 10330-10150 USPP 1033010150

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Siemens TP27 6AV3 627-1QK00-2AX0 Touchscreen Glass

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Latest Bluetooth Module Cradle 2005 to 2008 Mercedes E320 E350 E500 E550 E55 E63

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Reeves SBAI-1001-11

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Schneider Modicon AS-884A-201 PROCESSOR MODULE AS884A201

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Schneider Modicon AS-5540-003 Bus Duct

Modicon TSX Quantum 24-230 VAC Output Module 140DAO84000

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THK RU280-440213D NSPP RU280440213D

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portable recording DVR for thermal imaging FLIR cameras scope sights M18 M24 MTM

HONEYWELL EXPERIAN TC-CCR013 DUAL REDUNDANT NET INTERFACE MODULE

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Omron 3G2A5-PS211

Schneider Modicon AS-M907-100 PLC M907100 AM-M907-100

Schneider Modicon MEMORY 32K AS-506P-F32 REV C21 M 506-000 REC C

Schneider Modicon AS-H819-103 USPP ASH819103

Schneider Modicon Gould/ AS-J540-100

Schneider Modicon AS-BDAU-208

Schneider Modicon REMOTE I / O ADAPTER AS-J810-000

Telemecanique Inverter Operator Panel ATV66 FS

SCHNEIDER TELEMECANIQUE OTB1S0DM9LP OTB1SODM9LP

SIEMENS/TI/CTI 505-2599/2599 32PT AC OUTPUT MODULE XLNT

Siemens 6AV6 545-0BA15-2AX0 6AV65450BA152AX0 Panel

 

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