Logic28
New Member
No ESS, and no connection to the grid at all.
In all fairness, I only have a couple of low battery warnings recently as can be seen from the images but many DC ripples.
Multiplus II - Warnings & Alarms
- Thread starter Logic28
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In all fairness, I only have a couple of low battery warnings recently as can be seen from the images but many DC ripples.
ricardocello
Watching and Learning
My VRM widget list has a VE.Bus device for my Quattros, you should have one for the multiplus.
See if you can plot the DC voltage and current at that time (zoom in)
See if you can plot the DC voltage and current at that time (zoom in)
Logic28
New Member
Thanks, I did not have them enabled, probably after the recent parallel reset.
I can see them now but they are new to me so I have to understand them better.
Checkthisout
Solar Wizard
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The RIPPLE can also come from the charge controller if its running at the time of failure.
In other words when the battery kicks off the inverter is then running directly off the MPPT which can have lots of ripple.
Don't know your exact setup.
Checkthisout
Solar Wizard
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Yes.
Also, if the battery is off, the MPPT produces ripple.
Yes. That is what I would be chasing. Your battery is turning off or something like that.
I don't know the exact algorithm for generating an overload warning
However, I do know that Multiplus's go bonkers when voltage ripple is present.
Logic28
New Member
I have now reconnected the Seplos Can Bus of the 16Kw Battery to Venus, it was disconnected last month after erroneous behaviours between the two battery banks. So far everything seems to run smoothly however I'm not happy about not being able to use data from the smaller 5Kw Odipie battery which doesn't seem to communicate through any of the available networks.Yes.
Also, if the battery is off, the MPPT produces ripple.
Yes. That is what I would be chasing. Your battery is turning off or something like that.
I don't know the exact algorithm for generating an overload warning
However, I do know that Multiplus's go bonkers when voltage ripple is present.
justinm001
Solar Addict
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Export the excel file in vrm and note the time of the alarms then check all the DC voltages with a minute or so of that time. Work backwards from the inverter/vebus. I've noticed some voltages can be a few seconds or so off. I just hide all columns that aren't voltage, current, time then look at what's going on around that time.
A loose connection or bad fuse or other wiring issues will cause the voltage to drop under large load.
If inverter voltage is much lower than battery then it's an issue past battery.
A loose connection or bad fuse or other wiring issues will cause the voltage to drop under large load.
If inverter voltage is much lower than battery then it's an issue past battery.
Logic28
New Member
I had one L1 Overload warning today but no battery warnings, the load was nothing serious, only 1203W on L1. BTW I assume that it's impossible to determine which of the two inverters is generating the warning since they run in parallel or is it?
I'm not sure I know what you mean by Exporting the Excell file, I have not seen that feature as yet.
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