ABB DSTYW121 3BSE007836R1工控系列模块
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在更换之前，新CPU必须加载与现有CPU相同的正确固件。如果BC810由外部电源供电，则整个CPU（带底板）可以在操作期间更换。按照以下步骤更换暂停的处理器第一单元。断开电源插座与处理器单元的连接。2.从要交换的处理器单元上断开RCU链路电缆和光模块总线电缆。在任何情况下，都不要从当前以单一状态运行的主CPU上卸下RCU链路线缆。卸下电缆可能会导致CPU停止。请断开控制网络电缆。4.将锁定装置旋转至装置底板上的滑动位置（2），参见第69.5页的图17。轻轻地从侧面松开装置/基板，以松开装置的触点。6.逆时针转动锁定装置至打开位置（1），并在底座处向外向上松开装置底板。提起装置，将其从DIN系列上拆下。用刀片螺丝刀轻轻撬开装置底板，即可轻松将其彼此断开
Before replacing, the new CPU must be loaded with the correct firmware as in the existing CPU If the BC810 is powered from an external power source, the entire CPU, with baseplate, can be replaced during operation. Follow the steps below to exchange a halted processor unit 1. Disconnect the Power Supply Socket from the processor unit. 2. Disconnect the RCU Link Cable and optical ModuleBus cable from the processor unit to be exchanged.Do not, under any circumstances, remove the RCU Link Cable from the primary CPU now running in a single state. Removing the cable might cause the CPU to stop.Disconnect the Control Network cables. 4. Rotate the locking device to the SLIDE position (2) on the unit baseplate, see Figure 17 on page 69.5. Gently ease the unit/baseplate sideways in order to release the contacts of the unit. 6. Turn the locking device anti-clockwise to the OPEN position (1) and ease the unit baseplate outward and upward at the base. Lift the unit to remove it from the DIN-rail.The unit baseplates are easily disconnected from each other by gently prying them apart with a blade screwdriver
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