3/29/2012 12:27 PM | |
Posts: 2930 Rating:
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Hi, No Power, no operation! You can use relais with change over contacts. In case of power fail use the closed contact do do some thing. Regards |
3/29/2012 3:52 PM | |
Posts: 27 Rating:
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Use a small UPS (Uninteruptable Power Supply) to feed the 230VAC LOGO and its direct coupled relais etc. |
4/3/2012 8:39 AM | |
Posts: 26 Rating:
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Hi, This information can be useful. Automatic System Transfer with LOGO! https://support.automation.siemens.com/WW/llisapi.dll?func=cslib.csinfo&lang=en&objid=27074055&caller=view Attachmentgenerator-power supply.pdf (163 Downloads) |
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