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Power supply supprts IT earthing

Created by: Sindhu at: 8/10/2009 6:31 AM (3 Replies)

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8/10/2009 6:31 AM	Rate (0)
Sindhu Posts: 163 Rating: (0)	I want to know whether the redundant power supply,PS407,10A 6ES7407-0KR02-0AA0 supports IT earthing syste i.e Line-Line (L-L-220V)No neutral distributed.can anybody give me links of this supporting document
Sindhu Posts: 163 Rating: (0)
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8/10/2009 7:09 AM	Rate (0)
UMENCHO Diamond Member Joined: 3/21/2006 Last visit: 11/1/2024 Posts: 10229 Rating: (1181)	Hello, I am afraid it doesn't supports IT-earthing. Into S7-400 System manual (Entry ID 1117740 in section 3.9) you can find info about this type of power suply module. Power connection An AC connector is used for connecting the PS 407 10A and the PS 407 10A R to both an AC and a DC supply. Polarity reversal of L+ and L Reverse polarity of L+ and L- with supply voltages of between 88 and 300 VDC has no effect on the function of the power supply. The connection should be made as described in the instructions in the Installation Manual. And in Installation manual said: AC DC Terminal L1 L+ 1 N L - 2 PE PE 3 Regards, Hristo Mihalev

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8/10/2009 7:42 AM	Rate (0)
Sindhu Posts: 163 Rating: (0)	Can I have link of that installation manual.The options should be connecting the AC supply of L1 and L2 without neutral distributed.i.e L-L 220V AC with no neutral distribution of 60 HZ
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8/10/2009 7:47 AM	Rate (0)
dchartier Grandmaster-Expert Joined: 9/27/2006 Last visit: 11/16/2024 Posts: 12294 Rating: (2691)	Hello Sindhu; Here is a link to the Hardware installation manual for the S7-400: http://support.automation.siemens.com/WW/view/en/1117849 Alternatively, you can search for it on the product support link that you can see at the top of this page. Using the Search facility, you will locate manuals, applications, FAQs, downloads, updates on various products... Hope this helps, Damiel Chartier

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