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140CPS11400模拟量电源模块
当使用BRC-100 Harmony Bridge控制器模块时，必须在模块安装单元的背面安装处理器总线适配器（PBA）。需要PBA将控制器模块连接到Hnet，以便与Harmony I/O系统通信。Hnet总线是BRC-100模块和Harmony I/O块之间的通信路径。安装需要将PBA安装支架连接到模块安装单元的背面，然后将PBA组件连接到每个控制器模块位置的支架。以下程序详细介绍了PBA安装支架的安装。有关PBA组件安装和电缆连接，请参阅Harmony Bridge Controller说明。要安装PBA安装支架：1.关闭机柜电源。2.拧下将背板组件固定至MMU背面的顶部五颗螺钉。3.使用支架附带的5-40个螺钉中的五个将一个PBA安装支架安装到模块安装单元底板组件的顶部（图3-3）。4.拧下将背板组件固定至MMU背面的底部五颗螺钉。5.使用五个5-40螺钉将另一个安装支架安装到背板组件的底部。任何独立产品或控制系统的可靠性受设备维护的影响。埃尔萨格·贝利
建议所有设备用户采取预防措施维持设备运行的维护计划处于最佳水平。
本节介绍了客户应遵守的程序能够在现场执行。
这些预防性维护程序应作为指南，以帮助建立良好的预防性维护实践。
执行预防性维护的人员应符合以下资格。
•维护人员应为合格的电气技术人员或工程师，了解测试设备的正确使用。
•维护人员应熟悉安装装置，具有处理过程控制系统的经验，并知道在操作时应采取哪些预防措施带电交流和直流系统。
预防性维护计划
表4-1是安装装置的预防性维护计划。下表列出了中的预防性维护任务根据其指定的维护间隔进行分组。
注：预防性维护计划仅用于一般目的。您的申请可能需要特别注意。I/O扩展器总线接头P57至P60（位于板）允许连接系统I/O扩展器总线每个单独的安装单元（图2-1）。系统模块位于每个安装单元中，连接至扩展器总线通过底板上的接头P2-1至P2-12装配I/O扩展器总线连接到上的P2连接器系统模块。
注：I/O扩展器总线电缆如图3-2所示。如果混合IEMMU11/12/21/22和IEMMU01/02安装单元，过渡板是必需的。除非用于背板连接器的左侧插座（P58或P60）。
这个IEMMU01/02 I/O扩展器总线电缆连接至过渡板（零件号见表5-1）。其他信息是第3节过渡板安装中给出。双列直插式分流器位于XU1至XU11，以允许断开模块之间的扩展器总线连接（根据需要）和取决于模块配置。
注：1号扩展器总线插槽连接至P57和P59是否存在XU1。数字12无论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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