Hi all,

Just confirming here that when my boat is floating on the water there should be a link from the input PE terminal to J34a.

So, the earth wire from the shore power supply flex is connected to the input PE terminal and I make a small wire up with a female spade connector from this input PE terminal and connect it to J34a?

Many thanks

[image]

instead get phase one Live and phase two Live from the output of a changeover to feed Quattro AC 1 In and AC2 In respectively and save the cost of running multiple cables.

Please advice. being racking my brain all day long.

What is the Modbus TCP unit ID for the Multiplus II GX ?

BR.

Morten

Please i need an explanation as to what VE.bus inverter state "255" mean and also what MPPT state "131" is?

I have some 24v victron smart lifepo4 batteries to connect in series, i see in the manual it states they should be charged to 28.4 for volts for several hours just wondering how people are doing this? I have various chargers but i dont think i have one with a settable output voltage unless it has cell info e.g i have junsi smart chargers where it would need to see all the individual cell voltages i dont think this will be possible with victrons batteries. Any tips? Thanks Jack

After only 6 weeks my 5kVA Multiplus II has failed!!! My installer has taken the faulty unit into the distributor who has submitted all the warranty info. The disappointing thing is the time this all takes and so far I have no idea when a replacement will be coming. It is kind of critical when you are relying on power. Can this process be streamlined, maybe have a swap out or something similar?

Also, I have heard that the Multiplus II is not as reliable as the Mulitplus. Is this true?

17Perth_20190819-1000_to_20190819-1507 1.pdfI am getting error in VRM data for the inverter but no code. Normally during the night i would get low pv error codes and the like. but in the day every now and then i have Error but no code.

Multi with a Fronius Primo on the AC out 1. grid. the Fronius is on the router via an ethernet cable. so comms should not be an issue? how can i track down this error message?

attached a sample of data.

Hi,

Anybody has information about what's the maximum string voltage of LFP- Smart 25,6/200 connected in series. I couldn't find it anywhere in the documentation.

I assume we won't be using Lynx since it's limited to 48VDC (if remember well) nor Quattro, etc.

KR,

Lucas

not working at all , only 12v dc connected - all 8 leds flash on both settings.

any idea what to do?

Hi all,

my CCGX actually runs firmware 2.18. Now I want to update to the newest version via Internet but I am getting always the following Error and loud Beeps after the updating process has finished: "Hardware problem detected #42; Alarm; Storage is corrupt on this device."

It looks like that the CCGX is running fine after the update, but I cannot reset this error. The only solution for me is to use my backup firmware and downgrade to my previous Version 2.18.

I suggest, I cannot update because at least one of my Linux partition of the CCGX is faulty.

Is there a way to fully reset the CCGX or to format all of the CCGX partitions?

Best regardes

I have just installed a Victron bmv 712 unit in my boat. Setup for house and started battery banks. The display shows voltage of main and auxillary batteries, but is giving a fixed amp and watt reading, both positive and both excessive, I have worked the setup program and consulted the manual, making sure all functions are turned on. I tried the synchronize and zero calibrate functions on both the head unit and phone and they do nothing. I did this with all input power shut off, batteries fully charged. Then applied fridge & other components to see the draw...no change. ie. it is not reading current or power. I tried reversing the negative battery terminals on the shunt...no change.

I see others have had similar problems but do not clearly see the answer. Is this a defective unit? Surely not the cable. I have not taken a photo of the shunt installation but will attach soon.

Thanks.

I was curious what the difference between these modes are and which would I would use to connect my BMV-712 so that I could shut it off when it reaches a certain SOC.

I'd assume relay mode is the one I want but I am not quite sure.

Multiplus 12v 3000 not working,, not switching on.

When I connect 12v , no AC connected and switch on ( inverter) all 8 leds flash for a while, then stop flashing, nothing more happens. When switching over to charger, nothing,

When the leds flash I can hear a clicking noise like from a relay. , It's not the orange 12v relayon the top right side,, could not find another 12v relay in the unit , Maybe the clicking sound is a capacitor discharging?

When Ac connected the same , all 8 led flash or sometimes all 8 on , or sometimes nothing.

I took it apart and checked all connections as well visual., looks all good.

It's 8 years old , hardly used.

Anybody has an idea where the problem might be?

For what reasons is the output voltage so low, batteries are 100 per cent ?

Good Day,

Does the VE.Bus BMS protect 2 LFP Smart 12,8/60 batteries connected in series when a 1200A is being drawn from them? is there an overcurrent protection?

Regarding the BMV712 Smart, for how long the historical data will be kept?

Thank you

Good Day,

Regarding the LFP battery operation:

1) Does the VE Bus BMS disconnect the charge and discharge signal if the AMBIENT temperature is 50? Or when the BATTERY CELL temperature is 50?

2) What is the specific heat capacity of the LFP battery? (J/kg.k)

3) What is the internal resistance of the LFP battery?

Thank you

[image]

How Can the default password for the CCgx ACCESS LEVEL change from the defult "ZZZ" password?

AS keeping it on Defult means that the user can change it himself anytime !

I accidently connected the vacuum cleaner (approx. 1800W) to one of the sockets connected to my MultiPlus 500 while shore power was connected. It made a strong buzzing noise as from a relay switching really fast. The inverter works as usual but, now I noticed that the MultiPlus will not charge the battery and are not able to switch over to shore power as before when connected.

Did I burn the “push true” relay or is there any fuses on the 230V level?

Hello, the above unit has been fitted on our boat for in excess of ten years without problems, as we are never far from a shore power supply we tend to use it in charger only mode with a remote panel,

However recently we have noticed that when we plug in an appliance which only requires a small amperage, the charger will sometimes switch off &the blue mains light on, on the panel will flash,if we switch the unit off using the remote panel & wait a few moments, the charger restarts, quickly going down from bulk to float, it is never the same appliance, or the same socket outlet & does not always happen, could you give us some assistance as to where the problem could be ?

Our fear is that one day the unit will fail to reset it's self & leave us without a battery charger.

Regards

Hello,

I have my system running scheduled charging (from grid) starting 8:00am until 10:30am.

[image]

I have seen periods where there is more than enough solar availability but it's not being inverted for charging and/or covering consumption:

[image]

as seen directly in the console:

[image]

and also as seen directly from the sky:

[image]

but after a while it goes back to normality and solar becomes main input

[image]

can anyone help to understand the reason this happens? It's very usual and I don't know how to limit it.

Thanks in advance.

Bonjour,

J’ai un problème avec le battery monitor BMV-702.

Même en l’absence de production d’energie, l’afficheur indique une consommation d’ampères alors que les appareils’ électrique en consomment.

J’ai pourtant respecté le plan de montage.

Merci d’avance pour vos réponses !

Hi all I recently installed a 5k multiplus with a mppt 150/60

Ad did the ess as needed however my pv array comes on in the mornings to charge the battery's and ad soon as they are charged drop dow to 30 or 50w

And my full load is being pulled by the grid and nothing by the pvs

Please help me understand why

So in an idea world i would use the ESS assistant to use solar while available and grid AC to supplement eg at night or during power outages. the issue being we are not allowed to run grid tied/ feed back in my country so the ESS and Hub1 assistants wont work ?

what options are there to use solar during the day rather than the default of ac bypass when available?

i have looked at using the virtual switch to only use AC charging when voltage lower than 12.5 and turn off when > 13 but it seems a bit of a hack and not "perfect"

thanks

Can anyone tell me what the disconnection time is for the loss of mains detection relay please? Quattro 8kw 24V

Did a firmware update yesterday of a system with 2 x BYD B-PLUS2.5 & a MultiPlus 2 3kVA. I've noticed the BYD is reporting currents down to 0.1A (just the Venus GX running). Steps up to 0.3A (MultiPlus 2 running with no load). The SOC seems to be more accurate too. Previously I don't think it would resolve below 1A and the SOC would be inaccurate after being left overnight.

Just wondering if anyone else has noticed this?

Updates were from Alps Power site, BMU upgraded to v4.23, batteries to 4.12. All Victron firmware is latest.

Cheers, Matthew

Hi colour control has frozen in pv inverter screen any hard reboot ideas? Why has this happened, can it be reset from VRM?

Many thanks

Matt

Today I've spent pretty well all the hours of daylight, and then some tonight, on trying to penetrate the thick defences of my Multiplus 170/50. All I want to do is tick the box to allow more tolerant generator standards, and untick the UPS button, so I can get my generator to charge.

I've tried the MK2 USB dongle with both Windows and Mac computers. I've tried to connect through bluetooth. I've finally managed to send into the nearest city for a long ethernet cable in order to connect to our internet router.

I've successfully installed VRM Portal, and though it is nice to see everything as seen on the colour control mirrored on my laptop, I STILL can't see how to get into the generator settings.

I've worked fairly intensively with computers since 1990, both Windows and Mac, and yet the installing of the USB drivers for the dongle cost me 4 hours, despite following all the instructional videos and reading forums.

Is there anything else anyone can suggest to get me in to where I need to go?

Dear All,

I have a Smart Blue Power IP22 Charger 24v/16amp for my boat engine. I need to charge a 24v system consisting of two AMG 12 batteries (vestus marine batteries). The batteries were delivered with a voltage of each 14.2 volt and the system showed me (using a multi-meter) 28.x volt. It is my second pair of batteries having just lost the first once (chronically discharged).

Now, as I have used the new battery a bit, it shows me 24.6 volt, meassured with the multi-meter. When I connect the Smart Blue Power IP22 charger and look into the App, it says 28.x volt, but 0.0 amp., So, I'm afraid I have connected the chrarger wrongly or that it is broken (?).

Unfortunatly, the guideance in the manual is not sufficient for me as it only shows the side of the charger, not the batteries. As I was unsure whether I have connected the system in the right way, I changed the connectons, but the system still showed the same values. I would have expected that it would show me an error if I connect them in the wrong way (?).

Through this questions may not be difficult for most of you, I'd be glad to understand whether we should already see amps flowing, or should this only happen when the batteries has reached a discharge below 24v? Can I find better information on how to connect the system and is the above written (connection in different order does not change anything) an indication that the system is defect?

Thank you very much!

Olli

Hi there,

I've got a system where I don't want the quattro to automatically restart after shut down (due to the nature of the system it could restart onto a fault it doesn't detect for).

Is there a way to program this in so that in any shutdown event the inverter will not restart unless manually told to do so?

Planning a DC-coupled ESS with Multiplus-II (due to grid regulations) and 2 x Pylontech US2000 batteries and Grid Feed-In enabled.

Batteries are mainly for backup (feed-in tarriff works out cheaper than batteries per kWh transferred).

I also want to be able to connect a small generator and charge the batteries during longer power outages when battery SOC is insufficient to last through the night.

If I connect the generator to the AC in, I'm concerned that the Multiplus-II might try to feed-in to the generator.

1. Is there a way to automatically ensure that MultiPlus-II will not start inverting while on generator? Automatically switch it to "Charger Only" and pass-through to AC loads?

2. I could completely avoid the risk of feed-in to generator if I could find a charger that could connect directly from 230V AC generator to the batteries, so the generator would be kind of "DC-coupled"...but what charger would work for this type of batteries with built-in CAN BMS?

I have already read other similar questions like the one below, but the answer there would not work for me because I would really want to charge the batteries from the generator.

https://community.victronenergy.com/questions/20939/multiplus-ii-with-grid-injection-how-to-avoid-inje.html