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4/7/2012 8:26 AM | |
Joined: 12/1/2009 Last visit: 6/7/2024 Posts: 672 Rating:
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Hi, can you give us some some information about your system? Or just upload us a picture. A picture tells more than thousend words But if I understood you correctly you havea redundant H-system (i.e. 155H). Due to any reason you lost the main powerto the system. The backup batteries never got replaced and are of courseempty now. The power is backand the CPU's do not want to go to RUN mode. The power supply module has a DIP setting where you can switch the batterymonitoring on/off. If it is ON you need to replace the batteries before the start of the CPU. If it is OFFthe CPU will start even with no or faulty battery. The description is in the manual: "Power Supply Unit / Configuration Swithes"" https://support.automation.siemens.com/WW/llisapi.dll/csfetch/1344858/6ES5+998-4SR21band1.pdf?func=cslib.csFetch&nodeid=1344859&forcedownload=true Regards. |
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