艾倫-布拉德利1756-L84E是ontrollogix控制器。這款控制器屬于高端控制器，設(shè)計(jì)現(xiàn)代，連接性強(qiáng)。該控制器非常適合大型應(yīng)用，因?yàn)樗梢杂脕磉B接和控制輸入和輸出設(shè)備，特別是128，000個(gè)離散輸入和輸出以及4000個(gè)模擬輸入和輸出
它支持本地I/0控制以及利用一種或多種通信協(xié)議(如以太網(wǎng)/P、控制網(wǎng)、設(shè)備網(wǎng)、數(shù)據(jù)高速公路Pus、遠(yuǎn)程/0、SynchLink和第二方過程和設(shè)備網(wǎng)絡(luò))實(shí)現(xiàn)分布式I/O架構(gòu)
1756-L84E配有集成通信端口，如-(1)個(gè)以太網(wǎng)I/P。該嵌入式端口支持10/100/1000 Mbps傳輸速度，可用于通過同一以太網(wǎng)內(nèi)的信息指令與人機(jī)界面(HMD、監(jiān)控和數(shù)據(jù)采集(SCADA)及其他控制器進(jìn)行通信。USB端口是支持12 Mbps通信速度的USB2.0。

1756-L84E

1756-L84E有一個(gè)高達(dá)20MB的內(nèi)置用戶內(nèi)存。可以使用2GB安全數(shù)字(SD)卡1784-SD2安裝擴(kuò)展非易失性存儲(chǔ)器。這種控制器不需要電池來保存易失性存儲(chǔ)器的內(nèi)容，因?yàn)樗鼛в鞋F(xiàn)代能量存儲(chǔ)解決方案，消除了使用電池的需要，使控制器用戶和環(huán)境友好。
Allen-Bradley生產(chǎn)的1756-L84E ControLogix 5580控制器是一種高性能控制器，具有高達(dá)128，000個(gè)/0，可增強(qiáng)機(jī)器自動(dòng)化并提高性能。它配備了20MB的用戶程序存儲(chǔ)內(nèi)存，并允許通過可選的預(yù)裝2 GB安全數(shù)字卡(1784-SD2)進(jìn)行擴(kuò)展和長(zhǎng)期程序存諸?？刂破魃锨度肓艘粋€(gè)諸能模塊，無需額外的電池，整個(gè)控制器在1.2V DC下消耗5毫安的背板電流，在5.1V DC下消耗1.2室安的背板電流。1756-L84E的工作散熱為21.2 BTU/hr，并在USB端口至背板、以大網(wǎng)端口至查板和USB端口至以大網(wǎng)端口之間提供50V隔離，采用在1000V交流電下測(cè)試1分鐘的基本絕緣.
故障排除①查明斷點(diǎn)予以修復(fù)；②檢查繞組極性；判斷繞組末端是否正確；③緊固松動(dòng)的接線螺絲，用萬用表判斷各接頭是否假接，予以修復(fù)；④減載或查出并消除機(jī)械故障，⑤檢查是還把規(guī)定的面接法誤接為Y；是否由于電源導(dǎo)線過細(xì)使壓降過大，予以糾正，⑥重新裝配使之靈活；更換合格油脂；⑦修復(fù)軸承。

1756-L84E

The Allen Bradley 1756-L84E is an ontrollogix controller. This controller is a high-end controller with a modern design and strong connectivity. The controller is ideal for large applications as it can be used to connect and control input and output devices, especially 128,000 discrete inputs and outputs and 4,000 analog inputs and outputs
It supports local I/0 control and distributed I/O architectures utilizing one or more communication protocols such as Ethernet /P, control network, device network, data highway Pus, remote /0, SynchLink, and second party process and device networks
The 1756-L84E is equipped with integrated communication ports such as -(1) Ethernet I/P. The embedded port supports 10/100/1000 Mbps transfer speeds and can be used to communicate with the human machine interface (HMD, supervisory Control and Data Acquisition (SCADA) and other controllers over information instructions within the same Ethernet. The USB port is USB2.0 that supports 12 Mbps communication speed.
The 1756-L84E has a built-in user memory of up to 20MB. Extended non-volatile memory can be installed using the 2GB Secure digital (SD) card 1784-SD2. This controller does not require a battery to hold the contents of volatile memory, as it comes with a modern energy storage solution that eliminates the need to use a battery, making the controller user – and environment-friendly.
The 1756-L84E ControLogix 5580 controller from Allen-Bradley is a high-performance controller with up to 128,000 /0 to enhance machine automation and improve performance. It is equipped with 20MB of user program storage memory and allows for expansion and long-term program storage via an optional pre-loaded 2 GB secure digital card (1784-SD2). A multi-energy module is embedded in the controller, requiring no additional batteries, and the entire controller consumes 5 mA backplane current at 1.2V DC and 1.2 chamber amps of backplane current at 5.1V DC. The 1756-L84E has an operating heat dissipation of 21.2 BTU/hr and provides 50V isolation between the USB port and backplane, from the main grid port to the board, and from the USB port to the main grid port, with basic insulation tested at 1000V AC for 1 minute.
Troubleshooting ① Identify the breakpoint and repair it; ② Check the polarity of the winding; Determine whether the end of the winding is correct; ③ Tighten the loose wiring screws, use a multimeter to determine whether the joints are false, and repair them; ④ load reduction or detect and eliminate mechanical faults, ⑤ check whether the specified face connection is also misconnected to Y; Whether the voltage drop is too large because the power wire is too thin, to be corrected, ⑥ reassembly to make it flexible; Replace qualified grease; ⑦ Repair bearings.

1756-L84E