Stephen

Screen shows 96% 12.9 v when going to bed but then in the morning they show 96% 10.4v and alarm warning sets off - when I switch it off and then back on again it goes back to 96% 12.9v can’t understand why this is happening all new batteries and equipment

I woke up Saturday morning and my Multiplus 12/3000 no longer works. Cannot turn it on at the unit.

I confirmed that the main fuse is good, and I have 13.6v across the connection to the MP.

Any ideas would be appreciated.

Cheers

Jim

s/v Cabo Frio

Multiplus 12/3000

Hello,

I have 2 x 24/3000 in parallel controlled by a Digital Multi Controller that have been working fine up to approximately 2 months ago.

The Digital Multi Controller amp display went blank and all the lights on the controller came on and stayed on.

When the controller is switched off/on to either charge only or on the 24/3000 units can be heard to 'click' indicating switching on/off and the temperature light on both units flashes once only.

The mains power and voltage as been checked and found to be alright and all the cable connections between the units and controller have been checked and cleaned and re-connected with no change whatsoever, the system still does not work.

Does anyone have any ideas as to what is causing the failure and how to rectify and make the system operational again.

Thank you in anticipation.

I recently updated my travel trailers power system. I installed 4 100w solar panels wired in series. Those run down to a Victron 100/30 charge controller and Victron Battery monitor. They are connected to a Battle Born 100w Lithium battery and a Victron Multiplus 12/3000w inverter which is tied into the circuit breaker.

My problem is a constant 6-6.3 amp draw on the system. I have no idea where it is coming from. I have tried shutting down all circut breakers and fuses and it dosent stop the draw. If I disconnect the battery disconnect between the batter and inverter the power loss stops. Any ideas about where a 6 amp power loss could be coming from?

Somehow my Venus gx package is missing with the green cable connectors which I need. Has anyone some left which I can buy. I donˋt want to buy another Venus for that. Thanks B747@skykay.de

Hope this isn't a silly question, but... If I have the 240V genset running can I turn off the quattro and will the power pass through to the 240V boat systems

i have 2 questions and this is my first time on here i recently brought 2 multiplus inverters and parallel them no problem all seems good on my test before i put then up permantly there is a red and black lead that comes with both units and ill be honest i dont know where there should go i does seen strangeas the red and black it only had 1 ring hole about 3/8 big the othere end clearly 2 wires so thats the first question i also have a battey alarn with heaps of switches witch seems easy enough to hook up but settting for high is 16.5 at max and i need 17 or off all togeather the main reason for this item is to let us know the the system is low so back off on power plus it seems i have to put a pin on both poles on the back....not + - side

Good day all. I am from Zambia and we experience 12-15 hours a day without power. Basically my director has asked me for some help to design him a system. He has a big generator that he runs all time so if batteries are low he can us generator.

For his system I suggested the Quattro 48/15000/200-100/100 VE.Bus with the smart solar 150/100tr mppt charger and BMV-712smart with 500a/50mv shunt.

Now my question is.... What would be required to get everything to talk to each other? He is also asking about lithium batteries.

I am now in the deep end as I don't understand what I would need for the inverter and bmv and solar charger to communicate to each other.

I know this is a long winded question but I'd really appreciate any feed back. Also this is a song shot but would there be anyone willing to help me over WhatsApp messenger,

Thank you in advance

My install is in a box van type motor caravan and consists of;

12/3000 Multiplus

Cyrix split charging

BMV-712

Colour control

75/20 Solar controller

270w solar panel

Rolls AGM batteries

The cab of the base vehicle needs to have a weld repair made on a small section.

What if any actions need to be made to the installation before the welding takes place?

When I put the shunt the rj12 port is down side and the utp cable dont look clean, I mean it needs to make a loop that I dont like. If I change the shunt to oposite side is the battery cable 2/0 that has a big and ugly loop. So if I change the little board on the shunt I can run the cables better and make a clean installation.

Also I need only one feet of utp cable, in the box come 30 fts of cable. Can I cut it and just put a new rj12 connector?

thank you so much for help

Jimmy (lonely sailor)

I have a Quattro 24v 8000 as part of a 4kw off grid solar system with 1000ah traction batteries (12 x 2v in series) . I have a Hyundai DHY8000SELR generator (apparently 7.2 kva) wired into the AC1 of the quattro. I have set the input voltage to a maximum of 16a as my generator seems to trip out if its set above this (which is annoying as it should be able to provide 30a, but this is a separate problem).

The issue is that the quattro is switching to charging (bulk) and mains staying in this mode for a couple of minutes then switching back to inverter mode for about 20 - 30 seconds then back into charge mode. Is there a reason for this? have I got the settings wrong?

Any help/suggestions would be really gratefully received!

I've also set with the dip switches the charge current limitation to 75%

so the dip switches are as follows:

8= off

7= on

6= on

5= off

4= on

3= off

2= off

1= off

Hi,

Is it possible that someone could tell me the shipping sizes of the following items..

BYD B-BOX Cabinet

BYD B-BOX 2.56kW Module

Quattro 48V/8000VA 250v

SmartSolar MPPT Charge Controller 250V/100A-Tr

Venus GX

Lynx Power In

Battery Monitor BMV-712 Smart

Thanks

Tony

75/15 controller, fitted in a campervan approx 2 weeks. 100w solar panel is clipped to the roof & connected to controller when needed.

Lastnight on a campsite with electric hookup (2nd time since installation), so solar NOT connected, & 240v charger connected directly to battery.

Anything connected to the 75/15 "load" is pulsing on/off...2seconds off, 4seconds on.

Load is connected (via 6-way fusebox) : phone-chargers, gps-tracker, CB radio...nothing high-power.

The blue LED "Bulk" is flashing about every 3s.

Any ideas?

EDIT:

Hardware firmware:v1.39

Interface V2, firmware:V2.19

Bootloader: V1.10

In Belgium we still have an electrical grid monophase (only 2 cables coming in) without neutral. I think Norway uses this system too.

It is originating from 3 phase 3 x 230V Delta configuration, from which L1 and L2 are coming to the my meterbox. I imagine my neighbours will be on L2-L3 and L1-L3 to divide the grid load.

there is NO neutral wire.

Which Victron system could be used to provide ESS functionallity? I already have a grid-tied solarinstallation, and would like to expand with ESS capabilities.

all help is greatly appriciated

best regards

Stefaan De Ridder

On dealer advice, bought a phoenix 12/1200 solely to run a fridge freezer in our house. It worked fine for almost 18 months, then developed a buzzing sound & intermitted red alarm fault. We sent it to the local accredited engineer who said he hadn't the facility to test it for long, he ran down a battery checking it, couldn't find a fault, tightened a couple of screws and returned it.

Obviously the fault remained. Contacted him again, he said he needed to examine our set up in person (chargeable) and didn't like the idea that we have a completely separate 12v lighting system, he thinks all should run through inverter which sounds like a poor solar engineer to me as well as irrelevant.

Contacted victron, they say send back to this man who can't test it & is more interested in checking the system. Victron and the engineer have been sent videos of the fault in action, both in and out of the system. Happy to post here if necessary.

The inverter does not function, horrible buzzing sound, red alarm fault. Does this with or without load, in our system or running directly off different, unconnected, stand alone battery.

We have played around with the system, connecting different battery banks, different panel sets, different charge controller and different inverter. The only part that fails in every isolation test is the victron inverter.

Now been living without a fridge freezer for a month, no resolution, no offer of warranty help. My husband has now had to travel overseas to work, hoped he'd resolve long before this.

Feeling utterly let down and frustrated not knowing what to do. If anyone knows a trustworthy, competent person I can get this unit to, for proper testing and repair, please let me know.

Wish I'd bought the cotek.

This is a drawing of my "powerplant". Except for the part with the Ouattro Inverters, I have already realized everything:

[image]

Black normal operation:

In normal operation, the solar system feeds the battery charger and the battery is charged.
At night, the battery is discharged via the same path.
PV and battery can be switched off by NA if malfunctioning.


Red are the actions in case of power failure:

The network is disconnected by a large contactor. (How to do that exactly, I have to find out)
Due to the power failure, the two contactors open from the NA protection
The voltage or current on the supply line of the NA protection breaks down.
The battery WR registers this and activates DC out and the power reduction of the PV to 1/3 power = 27.6 kW
The NA protection registers a correct voltage / frequency and opens the contactors for the PV system
The PV system starts up again and supplies power to the battery and house

Everything seems correct, but is that correct under VDE AR4105?

What is missing, what else needs to be considered?
Please your comments!

Hi

Will this software upgrade allow the multiplus 12/1600 compact to be switched on/off using the Bluetooth dongle when using victor batteries with a BMS.

Many thanks

I am looking to buy a 2nd hand CGX, but is concerned HW version may have changed to a point where older versions may not be as efficient as the latest. Can someone please shed light on the topic? PN BPP000300100R SN HQ 1435WEHNT which looks quite old. I am unable to find anything in change logs or searches to suggest I may my myself some future trouble.

Is there any other way I can monitor my battery system without being connected via the internet the installer changed my blue tooth dongles to a Venus gx when changing my old batteries to lithium batteries. I don’t want this solar system using my internet connection.

this morning I woke up to a huge number of alarms from my VRM, basically because the system has been discharging for the last 7 days... from Jul 1 and batteries were at 0% !!!!

Id not really been monitoring actively, as at this time of year in southern spain - we get loads of sun, so charge is not an issue (though im confused why Ive not been getting alarms prior (say at 50%)

when Iook at the VRM, a few things look odd...

https://vrm.victronenergy.com/installation/1701/share/a6e5e9e3

prior to 1st july all seemed ok, it was regularly going between 90%-100 doing bulk, abs , float

but after july 1, on july 2 it started keeping the battery % dramatically, and then each day, would only go up a bit... then stop rising, despite solar pv being available... and never got into abs

in fact if I look on the 30 day overview, you can see that except for yesterday, we still were producing the same amount of solar... but the batteries appear to be (largely) failing to charge....

Id be grateful if someone could have a look at the above installation graphs (last 30 day overview and you'll see my issue) - and advise me what to take a look at....

Im really confused.. nothing has changed...

the only thing I noticed is that there was also (coincidentally?) firmware update on 1st July, which is when the problems started!

is it that the batteries having stopped taking the charge for some reason?

would this be the MPPT?

could it be the BMV-702, just acting up an reporting wrong voltages?

what can i check?

for now, Ive put the generator on, even though we have a lot of PV, as an 'emergency' to see if I can get some charge into the batteries, as obviously running this low is very bad....

(of course its sunday, so can't do much today - and not even sure who to call tommorow :( )

any thoughts

Mark

system notes:

24 panels

48v

2 x MultiPlus 48/5000/70-100

2 xBlueSolar Charger MPPT 150/70 (VE.Can)

1 x BMV-702

Multiplus 3000

Travelling on canals

Hi again,

sorry for asking so many question in the last couple of days...I find it kind of hard to find information sometimes, seams like information is spread out on to many places and there is some stuffs that are left unknown..

so today, i notice the yellow led is flashing every 3 seconds, in the manual there is no information about that, there is 2 condition where the yellow light flash would indicate a fault but it would have to have the green or the blue led flashing too. no condition with only the yellow light flashing....

FW is v1.39

status on the MPPT is
absorption mode at 14,8v @ 6A

Pv roughly 33v @2.8A

temp is 24C
was in bulk for 4 hrs this morning now in absorption for 45 minutes

I was reading paper version manual for my BMV today, just to review my setting and try to learn more about it. But I got confuse cause I think there is contradicting information within. I had to go check the online version, to check if it was a typo that was maybe corrected. But I find the same error (!?) in the online version of the manual.

I'm saying this, but I might be wrong and confuse, please correct me if I'm wrong. I would really like to know which info is right or if the 2 info I think are contradicting are just 2 different info that I think should be the same..

so at 2.3 commons problems it is mentioned:

[image]

and when reading further, at 4.2.1 Battery settings under 02. Charged Voltage we found that:

[image]

and then if you just the mentioned section 3.7 (in blue ^) the mentioned voltage (13.2v) is proper for float and not for absorb, so think section 2.3 is wrong, unless I am just really confused and those 2 pieces of information are not related to each other...

so to add to my confusion, when I look at my own setup in the BMV, charged voltage is set to 14,8V, which I don't remember having set that, but I would really like to know if this is right or not

If ever i am proven to be wrong, i would like excuse myself in advance since english is not my first language

I'm in a jam and need to get my Multiplus charging my new lithium batteries ASAP. Solar panels not installed yet. Just got everything tested and working and connected batteries only to find out dealer did not inude the MK2-USB cable. I thought I could setup Multiplus va Color GX Controller / monitor or through the wifi dongle they sold me. Appears I can't, I have a USB to ethernet adapter my laptop. Is there anyway to hack or get this to work without the MK-2 USB cable. Need to get this going tonight (eastern U.S. time zone.) Thanks in advance.... MY main issue is to set the charging paramaters till I receive the cable which can't come soon enough. I also have some Raspberry PI 3 and 3+ if that will help.

How is the history feature really working? Does the smartsolar 75/15 has a built in clock, or is it the app keping track of the history? I think I red somewhere the controller itself has no built-in clock. Do l have to start the controller (smartsolar 75/15) at midnight for it to keep track of when one day starts and ends?

when looking at my history in my SmartSolar MPPT 100/20:

[image]

I see that 4 days ago, under "Consump.", it states 20Wh, what does that mean?

that day was the first day of my installation and i had no load connected to it, so it can't be my power usage for that day, furthermore the days i had my refrigerator, inverter and some light connected to my system correspond to "yesterday" and "2 days ago" and there is no value for "Consump." on those day.

so my question is: what is the line "Consump." used for?

Hi all.

FYI, I'm an IT guy and an electronics noob, so please be kind. ;)

I've had my Smart Solar 75/10 since 2nd March this year, and it has been great! However, a few days ago, the battery ran completely flat as the battery had not been charged. At the time I chalked this up to bad weather, but since then, the sun has come out and the charge current remains at 0 watts, 1 watt or 2 watts.

Here are the facts of my set-up:

• Two 12v panels wired in parallel, one 10W, one 80W.
• Always-on load of a Raspberry Pi, plus weather sensing instruments and WiFi antenna. Usually draws 0.2-0.3A from the controller's load output.
• Two lead-acid batteries in parallel, 12v 12Ah, and 12v 2.3Ah.
• The controller has not been disconnected or powered down since first installation . The RPi had an uptime of over a month when the battery stopped charging.
• When the battery died and the load was shut-off automatically, I kept the load disconnected to allow the battery to recharge over several days. However, the controller only reported a yield of 3-10 watts all day. Compared to my average yield of 80-100 watts all day.

Here is what I've checked so far:

• Both solar panels are working fine and gave a 20v output under moderate sunlight for the UK.
• I connected the batteries directly to the solar panels with my multimeter in-line. It showed a draw of 3-4 Amps. Immediately I heard a hissing sound like gas escaping from the batteries, and I stopped. Am I an idiot for directly connecting the panels and batteries, or does this show the batteries are toasted and the controller is not at fault?
• I both visually inspected and continuity tested the 20A fuse and it is fine.
• I have reset the charge controller to default settings.

Observations of the charge controller when operating:

• Despite only charging the battery with 1-2 watts, the status of the controller shifted from bulk, to absorbtion and then float within a few minutes.
• When set to 'battery equalisation' mode, the charge current rose to what I would normally expect at that time of day, 20-30 watts.

Apologises if this doesn't really make sense. Please feel free to ask any questions.

James