Hello!

I worked today the first time with the Victron stacked fuse holder and the bus bar.

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I am confused how to mount the stacked fuse holder with the Victron busbar. By dismounting one "screw stack" I got the screw M8, 1 pc. of wave washer, 2 pcs. of washer, 3 pcs. of nuts.

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First question: Is it stupid to think the cable itself has to be fixed in a way that it can't accidentally jump off when changing a blown fuse?

Second question: Is how to mount the whole puzzle in combination with the fuse, cable lug and busbar?

To mount it as it can be seen on the Victron leaflet, seems to me at the first idea not correct, because than it is not possible to use the cover anyway.

So I tried first to mount it on top of the busbar.

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By doing so it is not possible to mount the fuse 100% horizontal, because the thickness of the washers, nuts, cable lugs are not equal so at the end the fuse is some how crooked. And I feel not sure if it is perfect in sense to get the most possible contact from the fuse to the screw - busbar - nut - cable lug. There is always as contact surface "only" a washer, which is somehow smaller as the fuse and smaller as the cable lug. And it looks with all the nuts, washers etc. in the best way of thinking strange.

Therefore I tried the version to mount it under the busbar.

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With this version it looks for me quit good. The fuse has a wide and 100% contact area from fuse to busbar and from fuse to cable lug. Still the fuse is somwhow crooked and not 100% horizontal. I don't care about this really. But I wonder there might be somehow some unwanted torsion onto the fuse, itself by this. Or doesn't this matter? And when dismounting the fuse when it is blown the cable lug is loose, too and it can "jump" off at an unattended moment and cause unwanted problems ... Is this the price you have to pay when wanted to get as much contact area as possible? And still I see no way to use the cover.

As I couldn't find any answers for my question at Victron, I hope to get some feedback here.

And last question. What maximum torque I should use to tighten the nuts?

I am looking forward for your ideas and thinking how to get the best and safest way of fixing all correctly together.

Kind regards and stay healthy

DayAndNight

Hi I have installed a BMV 12 into my camper trailer connected to a 120Ah AGM battery. I have followed the instructions. With no load on the system, the app is reporting -1.1A current and -16W power. Why would the monitor be using that much power?

Just some advise, two 100/30 mppt's, completely separate units, two separate panel arrangements, both mppt's battery cables connected to the same positive busbar but are reading different voltage, one reads 14.29v and is in absorption the other reads 14.14 and is still in bulk, both mppt's have the same settings, don't be concerned or is there something to adjust?

Rod.

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Hi everyone,

I installed a brand new Multiplus 12/3000 yesterday with 4 Lion energy 1300 lithium batteries. I used all 4/0 cabling and the ones between the batteries are exactly the same length. I'm currently hooked into a stable 50 AMP plug on my house and have a BMV-712 installed. I also have the Smart Dongle. My absorption and float rates are configured at 13.9. When monitoring voltage from the BMV or the Smart dongle, my voltage is bouncing hard between 13.5 and 14.3. If I change the absorption rate to 14.4 or 14.6 per Lion Energy, my voltage will bounce between 14 and 15 volts. I was told my voltage should be stable and not bounce like this.

Below are the steps of troubleshooting I've been able to do thus far and looking for assistance, as I'm not an expert by any means.

- Updated software to v469

- Turned off 150/100 MPPT charge controller(I don't have panels yet anyway, but just in case)

- Voltage is bouncing at all the batteries with multiplus charging in absorption

- With inverter off, Voltage is stable at 13.6ish volts at all batteries individually and off parallel leads

- Turning inverter back on, voltage bounces again at each battery and main leads from battery to inverter

- Changed absorption charge rate in multiplus settings, 14.4,14.6, etc.. still bounces, but higher

I'm not sure what else to do now and looking for troubleshooting guidance. Should I open up the Multiplus and measure the voltage coming out of the terminals where the battery leads come out of? Should that voltage be stable?

Thank you,

Dale

Is it possible to charge a 48V batterie with solar panels having 30VOC using a smartsolar mppt 75/15 and Orion 24/48-6 in series? having connected the solar panels to the mppt and the output of the mppt to the input of the Orion?

We need to conect two Smart MPPT 150/100 in parallel mode, both sides (PV and Battery)

There is not information about it, please coud You help me.

In advance, thanks so much

Jorge G

I would like to integrate the Sunny Boy 3000TL with the Victron Multi Grid as described in the manual. But i have run through the troubleshooting steps without success. I cannot see any device on color control (CC) interface as described in the manual. even when i am setting manually the IP address of the device.

I am able to ping the inverter from within the CC, so i have verify that this communication is ok. Moreover i am able to read SMA's parameters from my SCADA which means that the modbus TCP capability of SMA is enabled. Sunny Boy listen on modbus ID-3 but i cannot verify that this is the default for the CC.

Thanks in advance

Hi. So I have 3. 75/15 charge controllers. Can I use them at different times on the three at different times. And is the 30day history I will get off the individual controller. Or is the info stored in the dongel for the 30days.i was hoping that when I plug dongel in the charge controller I would get last 30day info from the c/controller it plugged into.

Two Phase ESS setup with 2 x 48/8000/110 Quattros, 15kVA three phase generator with Titan 48/50 Charger on third phase.

Firmware: CCGX 2.53~2, Quattos 469.

Generator on AC-IN-1 with current limit of 14 Amps. All good while loads are low and system in Bulk, charging battery. Current hovers around 12 - 14 Amps. The problem I have is when a large load turns on, the mode changes to "Pass Thru" and excessive current is drawn continuously from the generator. I was monitoring the system when the 3kW water heater came on. I watched the Quattro draw 27 Amps from the generator for 30 seconds before I turned the generator isolator off. This is virtually twice the limit set.

Dynamic Current Limiter - disabled

UPS Function - Enabled

Was going to try the "Dynamic Current Limiter" but the increase in current is not temporary. It matches the loads applied and completely ignores the “AC Input Current Limit”. Also I don’t want it working while connected to the grid.

Please advise if I’ve overlooked something.

In user manual is reported that Inverter Voltage is adjustable (210-245V).

Because i have an automatic switch commutating inverter vs. grid, sometimes happen the main differential switch turn-off, letting me without energy at home. Grid voltage comes at 247V, default setting for Phoenix Inverter is 230V, so I need to make equal the values, to avoid falling down of energy.

How may I set up a Voltage higher than 230V?

Many thanks if you can help me.

Hi, I have a Mppt 150/70 Mc4 and it has been working great for the last 4 years. I have the Bluetooth dongle so I can monitor the PV array out put and then the load.

But now something strange is going on.....

When the sun was setting I noticed the voltage didn't drop to below ~25v. Even when I disconnected the Pv array the voltage is the same. For some reason the Pv voltage is more or less set to the same voltage as the batteries (24v).

It's like the battery voltage is leaking out to the PV connectors. Not until I disconnected the batteries, the controller stopped "charging" (blue light on). And now when I connected the batteries back the voltage for the PV array is again ~24V. I checked with voltmeter that the voltage I was reading on the app was coming to the Pv connectors and it is.... Please help! Is it still safe to use? Is it broken? What can I do?

Hi,
I have used a Centaur 24/60 charger to charge Winston 400AH cells.

Suddenly it stopped charging but all seems to be normal. Green light on, fans running.
But the voltage from the spare output(only charging one bank) is fluctuating between 5 and 10 volts) and the bank in use is not delivering any current.

So is it just to bin it?

Hallo !

I have an Easysolar 24/3000 system with 10 kW lithium and 1800 wats of panels that work fine. However I need a backup source of energy to charge my battery in October/November since the sun is low/absent in Norway then....

I have a 2,2 kW generator that works fine for tools, lights etc. if I use it directly -but I can not use it to charge my battery through the multiplus in mye Easysolar (from 2018).

I can see it connect and it shows 100-150 wats of charging for a brief moment before it disconnects.
I have tried to lower input current and I have also hooked off for "Weah AC" in VE.Configure.

The generator is a fairly cheap, but good and very common generator -see picture. I have considered buying a Honda 2.0 i generator -could this generator work better?

(I might only need the generator 2-3 times a year so I want to get away with a small and cheap generator)

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I have an easysolar connected with 200 Ah battery bank, in this section of setting what is the battery capacity should I adjust 200 Ah or 85% of 200 Ah =170 Ah ?

I’ve had an error come up on one of our GX devices saying “Internal Error Alarm”. This seems to be related to the BMS in our Pylontech batteries.

All I can find in Victrons docs is under https://www.victronenergy.com/live/vrm_portal:alarms – the last line in 2.1.2. Although this is no help; it only shows me that it’s an alarm that is being monitored.

Can you please tell me what this alarm means?

I'm in the final design stage of an all-Victron LIFEPO4 upgrade for my sailboat. MultiPlus, 2 of the LFPSmart 12,8/200-a batteries, VE Bus BMS, BMV-712, battery protect, cyrix, Victron MPPT solar controller, new Balmar alternator regulator and Sterling APD...the works, very similar to the example system diagrams Victron provides. Given the amount this is going to cost, I'm keenly interested in designing the system for maximum utility AND maximum useful life. I'd like my children to inherit this LFP system :)

My typical usage pattern is to not really need the house bank most of the year, but for 4 - 6 weeks in the summer my family pretty much lives on the boat. So we see a period of intense use in the summer, but the rest of the year I would like to do what I can to keep the LIFEPO4 batteries in a "storage mode" if that will prolong their life.

My understanding is that when not in use for a while, they should be stored in a partially depleted state...60%, 70%, 80%, I've seen figures in those ranges, with the BMS and all other loads disconnected. I figured I could manage this, running my minor house loads at the dock (bilge pump, never really runs, lights and radio when I am at the boat in the winter working on projects) off the AGM starter battery, which has its own 10amp dedicated shore power charger (not the MultiPlus)

But I've also read in the Victron battery manual that they should be fully charged once per month to keep the cells balanced, which seems to defeat much of the point of having a system in place to store them in isolation at 75%-ish charge for extended periods of time.

What are your thoughts on habits and system design for maximizing LFP battery life?

Is it a false economy to try to maximize life by being fussy managing the storage charge level, disconnecting and reconnecting the BMS and then diligently charging to 100% every month? Is it better to just "set it and forget it" and keep the MultiPlus going all year long? I want to avoid trying to be too clever and cutting off my nose to spite my face, if it is not really worth it.

Part of my concern here is "what counts as a cycle" when we talk about things like 3000 or 5000 charge cycles as being the useful life of a LFP battery. I hate to think I am using up my precious finite lifetime charge cycles just bouncing up and down between 95% and 100% at the dock while getting zero utility from the system.

I have a 12v 100W PV panel left over from a prior project that I would like to use as a battery maintainer for the vehicle's 24v battery bank.

What is the simplest way to go about this?

The 24v battery bank is strictly for the vehicle, not tied to the habitat system.

We have a multiplus 2 48/3000 connected to a BMZ ESS 7.0 48V Li-ion battery. The multiplus has 230V AC power supply and the battery supplies 54V DC, the MK-3 interface is connected to computer and the firmware has been upgraded, however when switching on the multiplus nothing happens. No diodes light up and the computer cant find the inverter.

Additionally we've connected a CCGX with RJ-45 to the multiplus and a VE.Bus to CAN Type B Cable is used to connect the ESS to the CCGX.

Since we can't get any communication up and running we're not able to proceed with the configuration. Perhaps something was set to not allow the multiplus to switch on due to connecting the CCGX to the poles of the BMZ battery for Power Supply. If so how could we reset the Multiplus II inverter to begin over following all the steps in the manual?

Thanks in advance. All insights are greatly appreciated :)

Hello, I plan to use a Multiplus II-GX 48/5000/70-50 with Fronius 4.0 on a 3-phase grid connected system. The 2 phases are connected directly to the consumer and the phase-3 will pass-through the Victron-Fronius system supporting Energy Storage System on one phase only . I have the next 3 questions:

1, Does the above system works fine?

2. Is the Multiplus II-GX anti-islanding certified and does exist a certificate for Greece?

3. Assuming the 3 grid phases are on. Does exist the possibility on the above system to have on the 2-direct phases 50Hz grid freq. and on the phase-3 higher ( for example 52 Hz) due to MG shifting on frequency? (This frequency unbalance would be abnormal for 3-phase loads).

Best regards,

Pavlos.

Hi,

what is the recommended DC interconnect between 2 x BYD LVL 15.4, 3 x MPII 48/5000 and up to 3 MPPTs ? The Lynx systems (with the 600A internal fuse in the Lync shunt) looks OK, but the related documentation is focussing on other batteries. According to the BYD/Victron docummention i expect problems with the BYD BMU and Lynx Shunt VE.Can connection to the CCGX. What are the recommended fuse levels and breakers (if required) ? Is the Lynx Shunt required at all with the BYD BMU is use anayway ?

best regards,

Martin

Hi I am looking to mount my multiplus 500 inverter/charger and am really tight of space. I was hoping I could mount it downwards directly to the floor, rather than upright - is this possible? Can't find anywhere in manual.

Best

Georjie

Hi,

I have a CCGX with a VECan NMEA cable. It have a multiple and 3 BMV VE Direct meter plugged in to the CCGX.

I can see some information on my plotter but I do not see an NMEA instance for each BMV plugged in to the CCGX. Is this supported? I also don't see a power out value for my Inverter NMEA device? Is there a document somewhere explaining what NMEA objects and values a GX device will push to NMEA when connected?

I have 2 3kw multiplus. one has a GX and the other a CCGX. Should I add an NMEA VE Can cable to those also or what do I lose by just using the CCGX NMEA link versus connecting the multiplus directly?

Hi I have an (off grid) EasySolar 48/3000/35 Mppt 150/70 the CCGX has stopped showing PV Charger, When I have rebooted and it will appear on CCGX for about 90sec then disappears, the solar charger is still working (can see it on Bluetooth Dongle) and voltage at battery is showing so too. As the PV charger is not showing on CCGX it is not showing correct SOC either.

I have also changed ve direct ports on back of CCGX but no different.

help : )

I do not have any Victron devices inline with incoming shore power, is it possible to add a Victron AC Current sensor to feed the Cerbo incoming current data to display on the GX Touch 50?

Hello, Im planing on building a three phase 9kW solar powerplant on my house roof. It is an older house so there is TN-C electric instalation in it (meaning that one phase grid inside the house is wired with two wires (common N and GND) and three phase with four wires). My idea of dealing with the wiring was to connect GND and N on the input to the same wire(remmember, there are four wires, L1,L2,L3 and N) and then leaving the output GND unconnected. Originally, I planed to use 3x Multiplus II 48V 3000W, but recently I spoke about it with one of the Victron dealers in Czech Republic and they told me that Multiplus II cant operate in TN-C grid from their experience, but that Multiplus can do it. Can somebody confirm this claim and explain how is it possible? They werent really helpful with the details, or they maybe didnt even know them. I just cant imagine how can Multiplus II recognise that the output GND is not connected and more importantly why should it be a problem. Thank you for the answers!

hello,

Last winter I installed some extra solarpanels to increase solar yield from an often absent sun. Now, with summer approaching, I wonder if I should disconnect some of the panels.

12v system here: 6x 160W solar panels (approximately 30V) connected in parallel to a 100/20 MPPT. It gets me through winter just fine. But I am afraid of frying the MPPT in summer... So should I disconnect some panels?

I have hooked 3 maretron tlm100-01 tank level sensors to a Nmea2000 backbone and connected that to a ve can adapter going to my ccgx

But the tank level sensors do not show up on the ccgx display

The manual say that these are compatible

Have I somehow installed of these wrong?

Or is there some sort of program I need to download to make them communicate?

I'm trying to figure out how to take advantage of the tank monitoring capabilities in the CCGX. I know for resistive sending units I need the VE.Can resistive tank sender adapter... My only problem is I have three tanks (Fresh, grey, and black) and these adapters cost $400 each!!! I would end up spending more than twice as much on these "adapters" as I have invested in the CCGX itself.

So I started looking at options. For RV holding tank monitoring: SeeLevel II is pretty much considered the standard for high end monitoring. When i was looking at their product offerings I noticed they have sending units that support "RV-C" which is a CAN Bus based protocol. Since the VE.Can adapter simply converts the resistance it gets from the tank into CAN Bus messages... If the SeeLevel II sends CAN Bus messages to begin with then it *should* be fairly straightforward to just connect these to my existing VE Can bus (I already have a CAN bus between the CCGX and my Orion Lithum BMS system)

That's assuming that the RV-C messages sent by the SeeLevel II are compatible with whatever message format the VE.Can adapter sends. I'm hoping someone from Victron can help me out.