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My Multiplus-II 48/5000 throws roundabout 3/4 Overload failures a day under normal operation. When looking in my grafana-Dashboard the peak Power-Consumption values does not exceed 4000W. But why does the inverter throws the overload failures and stores them in the cerbo-gx notifiction panel?
My Installation is built up by a Multiplus-II 48/5000 and eight Pylontech US2000 Plus batteries in an offgrid installation.
grafana or VRM will not accurately see the peaks as the data updates too slowly, around every 5 seconds.
Also the 48/5000 is 5000VA not 5000W. 4000W is around the max sustained load you can put on it.If the ambient temperatures are higher it will be lower.
Does it shut off? If not, thats not a failure, thats a warning. It warns you it is near to Overload. You can disable this behaviour
It does not shut off, its only the warning in the UI
But how can I disable this behavior?
A short inrush current can also trigger an overload warning but is not visible in UI/log.
Matthias is right. It's warning you that something in your system is overloading the Multi. Maybe just a mS spike? invisible to logging.
And it's not adjustable, as it's a hard limit in the Multi. Which can handle it, but it's saying "not for long".
I had this on my 48/5000 regularly, but I knew it was related to a water pressure pump. Replaced the pump start capacitor and problem gone..
Maybe I will need to add a second multiplus...
That sounds familiar. Mine was a dishwasher heating cycle (2500W with other stuff) plus the (faulty) pump.
I don't recall the GX alarms annoying me, but VRM keeps them forever!!
I didn't actually consider it a serious issue, and never considered upping inverter size. Just Victron telling the full story, not hiding it..
Because of @Marv21 's answer I thougt i could lower the treshold for the notification. But at least the only right solution would be to find the origin of the problem and stop the overloading or adding a second multiplus on the same phase.
I've also recognized that the overloading happens often in episodes of three:
The other answers are confusing tbh.
The Overload Warning starts at around 3,5-5kW with the 5KW Unit. There is no caution or something you have to take care of here.
You cant lower (or better rise) the warning trigger here.
You can disable it under your Console. MultiPlus2->AlarmSetup->Overload "Only Alarm".
Ich hab während eines Trainings das auch mal angemeckert, dass es für den Laien echt verwirrend ist eine Warnung abzugeben wenn alles im grünen Bereich ist...
I am also having overload problems with a Multiplus ii 48 3000 35. It seems to be linked to loadshedding power dips.
The load is constant at about 150W and a load spike of 900W as the power dips due to our utility switching areas back on (maybe 8:12am). I seem to get spikes of high load which have caused overload shutdown about 3 times this month. This particular spike didn't cause an overload shutdown and didn't affect the PV inverter connected to the grid.
I am still trying to collect more data, using a pc on a ups and a battery backup for the GX device, to see if I can confirm my suspicion. It might also be caused by the borehole pump or other load here on the farm because we are near the end of the utility 11kV power line.
