CC-PAON01 51410070-175編碼器_廈門阿米控技術有限公司

產品標題: CC-PAON01 51410070-175編碼器怎麼使用

型號： CC-PAON01 51410070-175

品牌： 霍尼韋爾

產品詳情資料：

DCS係統現場設計的可靠性措施

　　DCS出現問題後，將會有無法操作、無法監視等造成設備失控的情況出現。輕者出現設備停運影響經濟效益，重者危及人身和設備的。所以在設計中要根據現場的具體情況認真的考慮係統以下幾點可靠性：

　　(1)電源係統

　　DCS係統的供電係統是其運行的基礎，電源負荷不要超過60%，以免電源高負荷運行。同時要考慮用的電源，一般採用UPS電源，採用兩臺UPS互為備用好，一臺出現故障後備用機能夠無擾切換，提高電源的可靠性。UPS輸入電源不要採用電氣的同一母線，要根據電氣廠用接線取可靠性高的不同母線段電源，這樣保證電氣一段母線出現問題後不會影響DCS係統的電源。

　　DCS電源係統(UPS、電源櫃等)在現場安裝時要安裝在滿足無塵、無振動、防腐等要求的電子設備間內，同時安裝完畢通電前把電纜孔封堵，以防泄漏蒸汽從電纜孔進入電源係統造成電源短路。在DCS電源上電後，要在UPS、電源櫃等設備上挂“設備帶電運行禁止操作”標識牌，更不準可以在DCS電源係統上接入與DCS係統無關的負載，如檢修電源、檢修照明、充電設備、空調等。

　　(2)冗餘係統

　　現場考慮人們有必要對重要的I/O模塊進行冗餘，同時考慮操作員站的N:1冗餘結構，這樣避免由於卡件或操作員站出現硬件故障造成設備停運。

　　(3)採用後備措施

　　手動後備

　　對於重要的控制回路，可以採用手動後備的方法來提高可靠性。一旦自動控制失靈，用手動操作站直接進行操作，在這種情況下，手動操作站直接輸出4～20mA或1～5V的模擬量信號去控制執行機構或直接接地進行設備的操作，可以手動控制生產過程。

　　自動後備

　　自動後備是採用冗餘的方式設置另外一套或幾套備用控制裝置。當處於運行狀態的自動控制裝置發生故障時，備用控制裝置自動投入，維持係統的自動控制。自動後備是冗餘係統的一種形式，冗餘有主控單元冗餘、電源係統冗餘、網絡冗餘、I/O模塊冗餘、操作員站冗餘、服務器冗餘等。運行設備出現故障時，熱備設備會自動無擾的運行，同時不影響對故障設備的檢修。

產品英文詳情資料：

Reliability measures for on-site design of DCS system

After DCS issues occur, there will be situations where equipment cannot be operated or monitored, resulting in loss of control. In light cases, equipment shutdown may affect economic benefits, while in severe cases, it may endanger personal and equipment safety. So in the design, the following reliability points of the system must be carefully considered based on the specific situation on site:

(1) Power system

The power supply system of the DCS system is the foundation of its operation, and the power load should not exceed 60% to avoid high load operation of the power supply. At the same time, it is necessary to consider using high-quality power supply, generally using UPS power supply. It is best to use two UPS as backup for each other, and one backup machine can switch without disturbance in case of a fault, improving the reliability of the power supply. The UPS input power supply should not use the same electrical busbar. It is necessary to choose different bus section power supplies with high reliability according to the electrical factory wiring, so as to ensure that the power supply of the DCS system will not be affected if there is a problem with the electrical busbar section.

When installing the DCS power supply system (UPS, power cabinet, etc.) on site, it should be installed in an electronic equipment room that meets the requirements of dust-free, vibration free, and anti-corrosion. At the same time, after installation, the cable holes should be sealed before power on to prevent leakage steam from entering the power supply system through the cable holes and causing power short circuits. After powering on the DCS power supply, a "No operation allowed for live operation of equipment" sign should be hung on equipment such as UPS and power cabinet, and it is not allowed to connect loads unrelated to the DCS system, such as maintenance power supply, lighting, charging equipment, air conditioning, etc., to the DCS power supply system.

(2) Redundant system

On site, it is necessary to consider the redundancy of important I/O modules, while also considering the N: 1 redundancy structure of the operator station, in order to avoid equipment shutdown caused by hardware failures of cards or operator stations.

(3) Adopting backup measures

Manual backup

For important control circuits, manual backup methods can be used to improve reliability. Once the automatic control fails, the manual operation station can be used for direct operation. In this case, the manual operation station can directly output 4-20mA or 1-5V analog signals to control the actuator or directly ground the equipment for operation, which can manually control the production process.

Automatic backup

Automatic backup is the use of redundancy to set up another set or several sets of backup control devices. When the automatic control device in operation malfunctions, the backup control device automatically switches on to maintain automatic control of the system. Automatic backup is a form of redundant system, which includes redundancy in the main control unit, power supply system, network, I/O module, operator station, and server. When there is a malfunction in the operating equipment, the hot standby equipment will automatically operate undisturbed without affecting the maintenance of the faulty equipment.

免責聲明：

AMIKON我們銷售新產品和停產產品，獨立渠道購買此類特色產品。阿米控不是本網站特色產品的授權分銷商、經銷商或代表。本網站上使用的所有產品名稱/產品圖片、商標、品牌和徽標均為其各自所有者的財產。帶有這些名稱,圖片、商標、品牌和徽標的產品描述、描寫或銷售僅用於識別目的，並不表示與任何權利持有人有任何關聯或授權。

ABB	Honeywell	Modicon
PU515A 3BSE032401R1	51402615-400	416NHM30030A
XI16E1 1SBP260100R1001	51402592-175	140ACI03000C
3HNE00313-1	51402592-100	140CPS12420C
YT296000-MZ YXU149B YXU 149B	51402573-250	140XCP50000
DSMB144 57360001-EL	51402573-150	140XCP51000
C1900/0263/0260A C1900/0263	51402497-200	140CRP93200C
DSMB151 57360001-K	51401642-150	R911 AS-S911-003
YXU149 YT296000-RX	51401635-150	BMH1403P11A2A
C1900/0363 C1900/0363/0360A	51401496-100	BCH2MM0813CA6C IEC 60034-1
DSMB114 57360001-MG	51401632-100	140CPU65160S