ABB SDCS-PIN-48 3BSE004939R0002脉冲变压器板
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在没有BC810的配置中要在冗余CPU配置中交换RCU链路电缆，请执行以下步骤：1。关闭备用CPU的电源。（主CPU的电源必须仍然打开。）2。从备用CPU上断开RCU链接电缆。3.断开RCU链接电缆与主CPU的连接。请勿在RCU链接线缆断开的情况下长时间离开主CPU。如果电缆断开时发生电源故障，主CPU无法在电源恢复时执行启动。将新的RCU链接电缆连接到主CPU，注意电缆上的UPPER方向。新电缆端必须以与更换电缆相同的方式连接到冗余CPU（完全相同）。因此，电缆端的UPPER标记必须位于与交换前相同的CPU上。将RCU链接电缆的另一端连接到备用CPU。6.打开备用CPU的电源。更换保险丝–ModuleBus和CEX总线要更换TP830内部ModuleBus与CEX总线保险丝：1。使用刀片螺丝刀，松开PM8xx盖上的两个弹簧固定螺钉。2.小心地卸下处理器单元。3.识别TP830基板右侧的ModuleBus和CEX总线保险丝座。4.使用刀片螺丝刀，小心地拧下包含故障保险丝的保险丝座。拆下保险丝。5.插入新保险丝并更换保险丝座。6.更换处理器单元并拧紧盖螺钉。7.检查相关LED是否亮起。本主题不适用于不包含内部保险丝的PM891。
In Configuration without BC810 To exchange a RCU link cable in a redundant CPU configuration, perform the following steps: 1. Switch OFF the Power for the backup CPU. (Power on the primary CPU must still be On.) 2. Disconnect the RCU link cable from the backup CPU. 3. Disconnect the RCU link cable from the primary CPU.Do not leave the primary CPU with the RCU link cable disconnected for a prolonged time. If a power fail occurs while the cable is disconnected, the primary CPU cannot perform a startup when the power come back.Attach the new RCU link cable to the primary CPU, note the UPPER orientation on the cable.The new cable-ends must be connected to the redundant CPUs (exactly) in the same way as the replaced cable was. Thus, the UPPER mark on the cable-end must be located to the same CPU as before the exchange.Attach the other end of RCU link cable to the backup CPU. 6. Switch ON the Power to the backup CPU.Changing Fuses – ModuleBus and CEX-Bus To change the TP830 internal ModuleBus and CEX-Bus fuses: 1. Using a blade screwdriver, release the two spring-loaded captive screws on the PM8xx cover. 2. Carefully remove the processor unit. 3. Identify both the ModuleBus and CEX-Bus fuse-holders to the right on the TP830 Baseplate. 4. Using a blade screwdriver, carefully unscrew the fuse-holder containing the defective fuse. Remove the fuse. 5. Insert a new fuse and replace the fuse holder. 6. Replace the processor unit and tighten the cover screws. 7. Check that the relevant LED lights up. This topic does not apply to PM891, which does not contain internal fuses.
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