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8/19/2010 2:36 PM | |
Posts: 27 Rating: (0) |
hi barbarian , one more thing about outputs , is it same for s7-200 cpu 224 relay output . Splitted from logo outputs. |
Last edited by: O_Moderator at: 8/20/2010 8:33 AMLast edited by: O_Moderator at: 8/20/2010 8:32 AMnew subject after splitting |
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8/20/2010 11:42 AM | |
Posts: 94 Rating: (15) |
Hello, This is same for S7 200 series. But check the current rating Regards;- TITAS |
8/23/2010 11:07 AM | |
Posts: 173 Rating: (95) |
Hi there gkhn_ & titus YES!, the relay outputs on the S7-200 (all of them powered with 220V AC) are ALSO potential-free. EXCEPT that they cannot handle the same CURRENT as the LOGO! on-board realys. The ones inside the S7-200 & most expansion modules, are rated to only 2A. Because the LOGO! was originally intended as a RELAY REPLACEMENT technology in switching cabinets, the current rating was kept high. S7-200 PLC's are not meant to switch loads directly - it is always best practice to switch loads through intermediate relays with the right current rating. There are some of the S7-200 expansion modules that can switch higher currents, but I do not know the model numbers of part numbers right now - have a look on www.siemens.com/s7-200 I am sure the info is there! Allt he best AAAArrrgghhhh!!! ("Have a nice day!") |
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