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    HIgh voltage alarm - victron products

    I removed the positive Shunt cable to battery. No new alarms yet. Output towards battery is a bit higher than the mppt tells me but nowhere near 30 v.
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    HIgh voltage alarm - victron products

    I have not disconnected the pos cable yet but I accessed the shunt and disabled the ve network. Currently mppt volage towards battery is 29,4 v
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    HIgh voltage alarm - victron products

    A short comment here. Now my MPPT is in bulk charging mode at 28.9V. That is after I set absoption to 27.4. So the question is really, why do I think the bulk would react from the absorption setting? I cannot set bulk voltage anywhere and according to history, the mppt is mostly in bulk mode...
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    HIgh voltage alarm - victron products

    I need to check if I accidently changed my Lifepo4 factory default settings. I don't remember the float to be at 27V. Do you have the settings from yours? Absorption time seems to be default at 2 hr. Re-bilk voltage offset seem to be 0.2. No equalization. No temp compensation. Low temp cut off...
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    HIgh voltage alarm - victron products

    Not able to. I cannot get BT connection with MPPT as it says connected to other device. Tried logging out of VRM and also disconnecting my Raspberry PI that is connected via USB to all my three Victron devices. Seem that a reset of the MPPT is needed. In my opinion, quality products requiring...
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    HIgh voltage alarm - victron products

    Hmm...maybe I should break the connection between these victron units. Maybe it is a combination of that Victron Inverter and Victron SmartShunt informs the VIctron MPPT about loads, hence the MPPT adjusts abnormally. Will try to break the the internal network for the to see if any changes
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    HIgh voltage alarm - victron products

    I also tested using another voltage meter. Both my manual voltage meters show 30.0V
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    HIgh voltage alarm - victron products

    I now got a new alarm. probably because I drained the battery a little and then charged it up and came to the same situation as earlier. Output voltage set to 28. Voltage meter shows med 30.1. Battery is considered full. BMS tells med 29.5 and it also tells me 0.0A towards battery. VRM shows this
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    HIgh voltage alarm - victron products

    I set it back to standard factory for LifePo4 a number of times. This issue always comes back. Issues came before I started messing around with absorption duration time and re-bulk voltage offset. I agree that voltages could be higher for a small amount of time but my average alarm is about 2-3...
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    HIgh voltage alarm - victron products

    No questions about the three stages being different. I was more wondering why I cannot set the bulk charge voltage setting and only absorption. I have never seen alarms during charge of battery (being well below full). Maybe I should use tail instead of fixed absoption time? I changed to 15...
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    HIgh voltage alarm - victron products

    If I set mppt to 28 it still goes up to 30V :)
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    HIgh voltage alarm - victron products

    Another question, Bulk and Absorption are considered the same. But why does this MPPT have 3 separate lamps then? One for bulk, absorption and float. When at bulk, most of the time voltage seem to be correct. Then when alarms comes, it generally did most of the charging needed. Could it be that...
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    HIgh voltage alarm - victron products

    Yes, MPPT measure with voltage meter shows over 30V. When I started using it I tried it out, setting the BMS to lower settings to see if it kicked in and it did. Not sure why it does not do that now. It would be another thing if it would read wrong, hence act wrong, but it seem to read correct...
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    HIgh voltage alarm - victron products

    I then put some more load on it, about 250W. Still showing to high voltage from MPPT when I measure with voltage meter. I then set MPPT charge voltage to 26. It now measures 26.5. BMS cell voltages are now: 3.436 3.444 3.456 3.447 3.472 3.443 3.414 Not really sure about anything at the moment.
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    HIgh voltage alarm - victron products

    Now I did some more tests as I got more alarms. While alarm was active I measured voltage. It is about 30.4. While having alarm I lower the settings in the MPPT controller to 28 from 28.4. And yes, these 0.4 is seen with my voltage meter. So I would have to lower MPPT settings to 26 or so in...
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    HIgh voltage alarm - victron products

    I checked my history for other alarms. Strangely I cannot see the absorption starting/stopping at all during those alarms. I can only see bulk.
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    HIgh voltage alarm - victron products

    Strange! People in these forums mentions that bulk and absorption is the same. But Victron does not seem to think so according to attached picture. In this picture it is clear that my alarm issue comes as soon as absorption is finished and goes back to bulk. Bulk does not seem to care much for...
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    HIgh voltage alarm - victron products

    Today while at work I got another alarm. When I came home alarm had already recovered. Although, in the BMS software I found a high voltage alarm. Not for a specific cell, but for the battery in total ("sum volt high level 2"). The BMS has high volt protect set at 29V. I will work from home...
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    HIgh voltage alarm - victron products

    The time I measured was when the overvoltage had been there already for some time. Seems this can be seen for some while. Cabling in my case are very short in general. Between battery and shunt there is 1 dm and between shunt BMS, another dm. Between BMS and battery it is about 3 dm. Same length...
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    HIgh voltage alarm - victron products

    Seems main issue is all the different voltage readings from different involved hardware. Not sure how to correct that but as long as it looks like that, alarms can go off in all directions I assume. I saw in another forum that a person had alike issues with voltage differences up to 0.2 due to...
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    HIgh voltage alarm - victron products

    Hi! Good input. I added some comments 1. Victron inverter 24/375 (sinus is the more pure form of electricity, alike the electricity coming from wall outlets) 2. No other charge/power source anywhere adding anything. (Not counting the power of love) 3. I see no alarms from BMS. Alarms shown...
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    HIgh voltage alarm - victron products

    I also add picture of statistics showing that this more or less only happens when close to 100% SoC. But still, purpose of MPPT is to never go over max voltage charge is set to, which still is only 28.4V
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    HIgh voltage alarm - victron products

    Hi! I have 2 solar panels 2x230W, serial connected (2x24 v). Connected to a Victron MPPT SmartSolar 100/20. The MPPT feeds an 8 cell LifePo4 battery (24 volts). The LifePo4 battery is controlled by a Daly BMS 8S On the Battery negative side, I have a Victron SmartShunt installed. There is...
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    Daly BMS - how to handle it correctly

    Answer: If adding/withdrawing a load: remove BMS cell cable first, then re-attach If adding/removing a charger or solar panel: remove BMS cell cable first, then re-attach Regards, Henrik
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    Daly BMS - how to handle it correctly

    Hi all! I'm setting up a 24 v system and I use a Daly 8S 24V 80A bms. I finished top balancing yesterday and am currently waiting for a Victron shunt 500A to arrive. Short description of my setup from Battery minus side: "Battery minus" to "battery on/off switch" to "Victron Shunt" to "BMS B-"...
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