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| 5/16/2014 3:37 PM | |
Joined: 1/21/2013 Last visit: 9/4/2024 Posts: 4620 Rating:
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Hello kire, Have a look: Parallel connection of same type of power supplies for redundant operation |
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| 5/16/2014 4:32 PM | |
Joined: 5/28/2008 Last visit: 9/9/2024 Posts: 4515 Rating:
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Hello, I just want to add the part number of Redundnacy Module which contains these two power diodes to make 100% redundnacy between two power supplies. Hope this helps.
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Ayman Elotaify |
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| 5/17/2014 12:29 PM | |
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Posts: 56 Rating:
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First I will say thank you, for your fast and good support / inputs ! I think the choice will be 6EP1961-3BA21, but is this product ATEX approved? The equipment inside the cabint has to be Atex zone 2 approved. Edit the post, I have googled more, and found this, please see the two attachement, for me it looks like it already been ATEX approver for zone 2 ? Have nice wekkend further. |
Last edited by: kire at: 5/17/2014 12:34 PM |
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| 5/17/2014 12:34 PM | |
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Posts: 56 Rating:
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Data sheet.
AttachmentE86060_K2410_A101_A9_7600_chap_10.pdf (190 Downloads) |
| 5/17/2014 1:40 PM | |
Joined: 7/2/2008 Last visit: 8/26/2024 Posts: 928 Rating:
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Hellokire,
Yes the module is certified for Zone 2. Also, Class I Division II is equivalent to Zone 2. Edit: In your link6EP1961-3BA21if you go for entries tab and chose certificates in entry type, you will find thisFor use in hazardous locations, CSA, CSA. Best regards, H-H |
Last edited by: H-H at: 5/17/2014 1:44 PM |
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| 5/17/2014 8:48 PM | |
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Posts: 56 Rating:
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Thank you for your confirmation, and extra info how to figure it out. Then I have only one question / conern left, what about diagnostic for power failure? For what I know can not PS307 give any diagnostic, but what about the redundacy module? |
Last edited by: kire at: 5/17/2014 8:48 PM |
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| 5/17/2014 8:57 PM | |
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Joined: 5/28/2008 Last visit: 9/9/2024 Posts: 4515 Rating:
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Hello, Redundancy module6EP1961-3BA21is equipped with a Floating relay contact. this relay is enegized if both Input voltages > switching threshold. You can take this relay contact and wire to a PLC DI to monitor PS status. Here's bellow the manual: Hope this helps.
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Ayman Elotaify |
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| 5/18/2014 5:15 AM | |
Joined: 1/28/2012 Last visit: 7/23/2024 Posts: 519 Rating:
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General article regarding power supply redundancy using diode. www.manmonthly.com.au/features/how-to-achieve-redundancy-in-power-supply-systems |
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Regards, |
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| 5/18/2014 11:19 PM | |
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Posts: 2348 Rating:
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I guess you can use QUINT-DIODE/12-24DC/2X20/1X40 ( order number 2320157), it has ATEX : II 3G Ex nA IIC T4 Gc. Also Phoenix has 10A version - i don't know what power you need. Both have auxiliary contact for diagnostics. |
Last edited by: Aret at: 5/18/2014 11:20 PM |
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