CM808 智能MCC 控制保護管理裝置是瑞安工泰電器有限公司在研究國外同類產品、總結國內大量 MCC 電氣系統(tǒng)典型設計經驗的基礎上，為適應電氣系統(tǒng)二次設備終端智能化的趨勢，針對 MCC 回路的設計特點推出的新一代數字式、強抗干擾型智能 MCC 控制保護管理裝置。

產品主要用于低壓電動機控制回路中，實現(xiàn)對電動機的各種保護、監(jiān)測及控制功能，并能通過現(xiàn)場總線，實現(xiàn)對電動機回路的遠程監(jiān)控。

CM 808智能MCC 控制保護管理裝置采用通用化設計理念，在簡化一次回路的基礎上（省去了傳統(tǒng)的熱繼電器、熱保護器、欠壓過壓保護器等多種保護器；取消了時間繼電器、中間繼電器、輔助繼電器、電流互感器、儀表、轉換開關、指示燈、可編程邏輯控制器等多種二次分立元件），完成了二次回路的控制、保護、聯(lián)鎖、測量、信號、通訊等功能，極大提高了設計與生產效率，同時降低了用戶現(xiàn)場調試及維護工作量，縮短了項目設計及調試周期，具有明顯的綜合效益。

功能特征 

◆輔助電源支持DC110V/220V或AC220V。

◆硬件體系采用分布式結構設計，模塊化、標準化程度高，安裝方便、易于組網，便于現(xiàn)場維護。

◆所有接線全部采用即插即拔的插頭聯(lián)接方式，使用具有高可靠性的插件，徹底消除接觸不良的隱患。

◆采用背插式結構，強弱電完全分開，可大大減少外部電磁干擾在弱電側的耦合，增強裝置的抗干擾能力，提高其可靠性和安全性。

◆采用Profibus DP-V1冗余通訊方式。

◆采用32位工業(yè)級微處理器，速度快、精度高。

◆交流采樣使用真有效值（RMS）算法，全面反映諧波電流的影響。

◆自適應變頻采樣技術，適用于變頻器回路。

◆靈活的多種控制方式，各控制權限相互閉鎖。

◆裝置小型化設計，安裝方式靈活。

◆全金屬外殼設計，有效屏蔽外界電磁干擾。

◆漢字液晶，豐富的菜單顯示，界面友好。

◆12路開關量輸入回路，采用內部DC24V電源驅動，傳輸距離遠，可靠安全性高。

◆裝置內部控制觸點帶有保護電路，無需外加浪涌吸收器即可有效保護觸點。

◆裝置內帶自記憶芯片，無需外配單獨電源模塊即可實現(xiàn)“抗晃電”功能及電壓恢復自起動功能。

◆解決了熱繼電器和 MCCB 過載部分不能模擬 MCCB 負荷的電特性和熱特性的缺憾，在節(jié)省熱繼電器、簡化 MCCB 構造的基礎上，能更好地保護用電設備。

◆解決了 MCCB 瞬時脫扣器對長距離供電電動機端單相接地保護靈敏度不夠的問題，了以往針對該問題單獨加裝單相接地保護的手段。

◆完善的過載保護。熱模型考慮了電機正負序電流綜合熱效應，通過發(fā)熱常數和散熱常數精確模擬電機的發(fā)熱和散熱過程。

◆豐富的可編程邏輯，可實現(xiàn)復雜工藝聯(lián)鎖(如電動機間的聯(lián)鎖、電動機與液位、溫度等物理量的聯(lián)鎖)，提高了設計效率。

◆內置光電隔離的4~20mA 輸出接口，輸出電量可選，且范圍可調。

◆采用工業(yè)現(xiàn)場總線技術(Profibus-DP/ModBus-RTU)可以快捷地與監(jiān)控系統(tǒng)、PLC通訊聯(lián)網，實現(xiàn)了遠方高級管理功能。

◆雙通訊接口設計，可實現(xiàn)網絡冗余，大大提高通訊的可靠性，組網方式靈活。

◆強大的統(tǒng)計管理分析功能（事件記錄、管理記錄），方便用戶實時掌握電動機的運行狀態(tài)。

CM808 intelligent MCC system is Ruian Gongtai Electric Appliance Co. Ltd based on similar products abroad, summarize the experience of a number of typical design MCC electrical system in China, in order to adapt to the electrical system of two terminal equipment intelligent trend, a new generation of digital, strong anti-interference intelligent MCC system for the design. The launch of the MCC loop.

The products are mainly used in the low voltage motor control circuit, and realize the various protection, monitoring and control functions of the motor, and can realize the remote monitoring of the motor circuit through the field bus.

CM 808 intelligent MCC system using the general design idea, in a loop on the basis of the simplified (omitted thermal relay, traditional thermal protection, undervoltage and overvoltage protection device and other protective devices; cancel time relay, intermediate relay, auxiliary relay, current transformer, instrument, switch, indicator, programmable logic controller and other two discrete components), completed the two loop control, protection, interlock, measurement, signal, communication and other functions, which greatly improves the design and production efficiency, and reduce the debugging and maintenance of user workload, shorten the project design and debugging cycle, has comprehensive benefits the obvious.

Functional characteristics

The auxiliary power supply support DC110V/220V or AC220V.

The hardware system adopts distributed architecture design, modular, high degree of standardization, convenient installation, easy networking, convenient on-site maintenance.

We all use all the wiring plug and plug connection drawing, using high reliability of the plug-in, eliminate the hidden danger of bad contact.

It adopts back insert structure, electrical completely separate, can greatly reduce the external electromagnetic interference coupling in low voltage side, enhance the ability of anti-jamming devices, improve the reliability and safety.

It adopts Profibus DP-V1 redundant communication mode.

It uses a 32 bit microprocessor, high speed and high precision.

The use of true RMS AC sampling (RMS) algorithm, fully reflect the influence of harmonic current.

The adaptive frequency sampling technique for inverter circuit.

A variety of control methods - flexible, the mutual locking control authority.

The miniaturization of the device design, flexible installation.

The metal shell design, effectively shielding the external electromagnetic interference.

The Chinese characters LCD, rich menu display, friendly interface.

The 12 switch input circuit, driven by internal DC24V power, transmission distance, high safety and reliability.

The internal control device contacts with protective circuit, no additional surge absorber can effectively protect the contact.

The device with self memory chip, without a separate power distribution module can realize "anti shake function and voltage recovery self starting function.

We solve the electrical and thermal properties of thermal overload relay and MCCB part can not simulate the load of MCCB defects, based on saving the thermal relay, simplified MCCB structure, can better protect the electrical equipment.

It solves the MCCB instantaneous release of long distance power supply motor end single phase protection sensitivity is not enough, in the past according to the problem of adding a separate single-phase grounding protection means.

The perfect overload protection. The thermal model considers the combined thermal effects of the positive and negative sequence currents of the motor, and accurately calculates the heating and cooling process of the motor through the heating constant and the heat dissipation constant.

The rich programmable logic, can realize complex process (such as physical interlocking interlocking interlocking between the motor and the motor, liquid level, temperature and so on), improve the efficiency of design.

The built-in 4~20mA output interface photoelectric isolation, the output power is optional, and adjustable range.

The use of industrial fieldbus technology (Profibus-DP/ModBus-RTU) can quickly and network monitoring system, PLC communication, to carry out advanced management function.

The design of the dual communication interface, can realize the network redundancy, greatly improve the reliability of communication, flexible networking.

The statistics management powerful analysis function (event records, records management, user) to control the real-time operating state of the motor.