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battery LIFE in CPU-S7400

Created by: ninad at: 8/12/2011 1:23 PM (9 Replies)

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8/12/2011 1:23 PM	Rate (0)
ninad Posts: 37 Rating: (2)	What is battery life which we put in S7-400 CPU? Rgards, Ninad
ninad Posts: 37 Rating: (2)
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8/12/2011 3:14 PM	Rate (1)
hdhosseini Diamond Expert Joined: 1/28/2009 Last visit: 9/10/2024 Posts: 6849 Rating: (1365)	ninad What is battery life which we put in S7-400 CPU? Rgards, Ninad The topic is discussed here in depth : How great is the power requirement (from the backup battery) of the modules to be backed up at "Power Off" and what is the relationship between the backup current and the length of the backup time? Best regards
	Last edited by: hdhosseini at: 8/12/2011 4:06 PM Demo Channel on Youtube
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This contribution was helpful to 2 thankful Users Ayman Elotaify poya_xp

8/14/2011 5:21 PM	Rate (0)
gre_m Posts: 947 Rating: (45)	hi ninad version 4.x PLC has small battery life als 5.x. If plc install without external power (not work) battery life reduced.
gre_m Posts: 947 Rating: (45)
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8/24/2011 9:58 AM	Rate (0)
ninad Posts: 37 Rating: (2)	Is there any document available for the same? i need to submit to client.
ninad Posts: 37 Rating: (2)
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8/24/2011 5:45 PM	Rate (0)
Vitas Posts: 74 Rating: (2)	Hi Everybody, I have small commentary to this point. Battery life depend on energy consumption of memory, but also important is working and storage ambient temperature. Too low and high temperature markedly decreased battery life. The lithium battery are sensitive to temperature. One example of many : My customer want spare energy by switching-off of heating and cabinets power supply in factory during Christmas. In the new year he want to start technology and many machine stay still with lost of programm. On CPU was lit Battery LED, even if all batteries was changed in the summer. In the factory temperature chieved -10Deg C. Vitas
Vitas Posts: 74 Rating: (2)
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This contribution was helpful to 2 thankful Users H-H hdhosseini

8/24/2011 6:02 PM	Rate (0)
Marcjan Platinum Expert Joined: 4/22/2010 Last visit: 5/3/2024 Posts: 5697 Rating: (715)	ninad Is there any document available for the same? i need to submit to client. Yes you can find it in the link posted by Hdhosseini before. And in the system manual section 3.3 http://support.automation.siemens.com/WW/view/en/1117740 Regards, Marcjan
	Last edited by: Marcjan at: 8/24/2011 6:04 PM Problem solved? Please let us know! Please no technical questions by PM, use the forum sections for your questions.
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10/4/2011 8:34 PM	Rate (0)
Jazz_M Gold Member Joined: 9/6/2008 Last visit: 5/7/2022 Posts: 1121 Rating: (86)	hi In addition to all others, you can also have a look at the battery calculator for determining the life of the battery. my customer once asked so. Have fun... Battery Calculator https://support.automation.siemens.com/WW/llisapi.dll?query=17900782&func=cslib.cssearch&content=adsearch%2Fadsearch.aspx&lang=en&siteid=cseus&objaction=cssearch&searchinprim=0&nodeid0=10805188&x=0&y=0
	Last edited by: Tagolover at: 10/4/2011 8:38 PM link change Last edited by: Tagolover at: 10/4/2011 8:37 PM Last edited by: Tagolover at: 10/4/2011 8:36 PM Jazz
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3/18/2017 10:37 AM	Rate (0)
Raheel Bronze Member Joined: 8/10/2006 Last visit: 7/15/2024 Posts: 156 Rating: (3)	Hi Tagolover, Your link is not working anymore. Can you please update. Thanks

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3/18/2017 10:54 AM	Rate (0)
ixo65 Grandmaster Joined: 12/18/2014 Last visit: 10/4/2024 Posts: 33879 Rating: (4214)	Here's another link: How great is the power requirement (from the backup battery) of the modules to be backed up at "Power Off" and what is the relationship between the backup current and the length of the backup time?

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This contribution was helpful to 1 thankful Users Ste39

3/18/2017 12:05 PM	Rate (0)
Ste39 Platinum Member Joined: 1/21/2013 Last visit: 9/4/2024 Posts: 4620 Rating: (708)	and When should you replace the back-up battery on your S7 300/400 ...

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