產品細節介紹
140CPS11400模擬量電源模塊
當使用BRC-100 Harmony Bridge控制器模塊時，必須在模塊安裝單元的背面安裝處理器總線適配器（PBA）。需要PBA將控制器模塊連接到Hnet，以便與Harmony I/O系統通信。Hnet總線是BRC-100模塊和Harmony I/O塊之間的通信路徑。安裝需要將PBA安裝支架連接到模塊安裝單元的背面，然后將PBA組件連接到每個控制器模塊位置的支架。以下程序詳細介紹了PBA安裝支架的安裝。有關PBA組件安裝和電纜連接，請參閱Harmony Bridge Controller說明。要安裝PBA安裝支架：1.關閉機柜電源。2.擰下將背板組件固定至MMU背面的頂部五顆螺釘。3.使用支架附帶的5-40個螺釘中的五個將一個PBA安裝支架安裝到模塊安裝單元底板組件的頂部（圖3-3）。4.擰下將背板組件固定至MMU背面的底部五顆螺釘。5.使用五個5-40螺釘將另一個安裝支架安裝到背板組件的底部。任何獨立產品或控制系統的可靠性受設備維護的影響。埃爾薩格·貝利
建議所有設備用戶采取預防措施維持設備運行的維護計劃處于最佳水平。
本節介紹了客戶應遵守的程序能夠在現場執行。
這些預防性維護程序應作為指南，以幫助建立良好的預防性維護實踐。
執行預防性維護的人員應符合以下資格。
?維護人員應為合格的電氣技術人員或工程師，了解測試設備的正確使用。
?維護人員應熟悉安裝裝置，具有處理過程控制系統的經驗，并知道在操作時應采取哪些預防措施帶電交流和直流系統。
預防性維護計劃
表4-1是安裝裝置的預防性維護計劃。下表列出了中的預防性維護任務根據其指定的維護間隔進行分組。
注：預防性維護計劃僅用于一般目的。您的申請可能需要特別注意。I/O擴展器總線接頭P57至P60（位于板）允許連接系統I/O擴展器總線每個單獨的安裝單元（圖2-1）。系統模塊位于每個安裝單元中，連接至擴展器總線通過底板上的接頭P2-1至P2-12裝配I/O擴展器總線連接到上的P2連接器系統模塊。
注：I/O擴展器總線電纜如圖3-2所示。如果混合IEMMU11/12/21/22和IEMMU01/02安裝單元，過渡板是必需的。除非用于背板連接器的左側插座（P58或P60）。
這個IEMMU01/02 I/O擴展器總線電纜連接至過渡板（零件號見表5-1）。其他信息是第3節過渡板安裝中給出。雙列直插式分流器位于XU1至XU11，以允許斷開模塊之間的擴展器總線連接（根據需要）和取決于模塊配置。
注：1號擴展器總線插槽連接至P57和P59是否存在XU1。數字12無論XU11是否存在或不存在。
PROCESSOR BUS ADAPTER BRACKETS INSTALLATION
A processor bus adapter (PBA) must be installed on the back of the module mounting unit when a BRC-100 Harmony Bridge Controller module is used. The PBA is necessary to connect the controller module to Hnet for communication with a Harmony I/O system. The Hnet bus is the communication path between a BRC-100 module and Harmony I/O blocks. Installation requires attaching PBA mounting brackets to the back of the module mounting unit, then attaching a PBA assembly to the brackets in each controller module position. The following procedure details PBA mounting brackets installation. Refer to the Harmony Bridge Controller instruction for PBA assembly installation and cable connection. To install the PBA mounting brackets: 1. Turn off power to the cabinet. 2. Remove the top five screws that secure the backplane assembly to the back of the MMU. 3. Install one PBA mounting bracket to the top of the module mounting unit backplane assembly using five of the 5-40 screws provided with the brackets (Fig. 3-3). 4. Remove the bottom five screws that secure the backplane assembly to the back of the MMU. 5. Install the other mounting bracket to the bottom of the backplane assembly using five 5-40 screws.
The reliability of any stand-alone product
or control system is affected by the maintenance of the equipment. Elsag Bailey recommends that all equipment users practice a preventive maintenance program that will keep the equipment operating at an optimum level. This section presents procedures that the customer should be able to perform on site. These preventive maintenance procedures should be used as a guideline to assist in establishing good preventive maintenance practices. Personnel performing preventive maintenance should meet the following qualifications. ? Maintenance personnel should be qualified electrical technicians or engineers that know the proper use of test equipment. ? Maintenance personnel should be familiar with the mounting unit, have experience working with process control systems, and know what precautions to take when working on live AC and DC systems. PREVENTIVE MAINTENANCE SCHEDULE Table 4-1 is the preventive maintenance schedule for the mounting unit. The table lists the preventive maintenance tasks in groups according to their specified maintenance interval. NOTE: The preventive maintenance schedule is for general purposes only. Your application may require special attention.
I/O EXPANDER BUS
Connectors P57 through P60 (located on the four corners of the board) allow connecting the system I/O expander bus between each individual mounting unit (Fig. 2-1). The system modules located in each mounting unit connect to the expander bus through connectors P2-1 through P2-12 on the backplane assembly. The I/O expander bus connects to P2 connector on the system modules. NOTE: I/O expander bus cables are shown in Figure 3-2. If mixing IEMMU11/12/21/22 and IEMMU01/02 mounting units, a transition board is required. The board will not work unless it is used in the left-hand socket of the backplane connector (P58 or P60). The IEMMU01/02 I/O expander bus cable connects to the transition board (refer to Table 5-1 for part number). Additional information is given in TRANSITION BOARD INSTALLATION in Section 3. Dipshunts are located in XU1 through XU11 to allow breaking the expander bus connection between modules as required and dependent on the module configuration. NOTE: The number one expander bus slot is connected to P57 and P59 whether XU1 is present or not present. The number 12 expander bus slot is connected to P58 and P60 whether XU11 is present or not present.
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