Configuring Dual Victron Inverters in 3 minutes or less for both split phase and parallel operation

[@offgridsimplicity]

Very helpful for my split phase programming. Thanks for posting.

[@PanelsUpSolar]

Glad it worked out well for you.

[@DreamIt_PlanIt_DoIt]

I've spent all night trying to figure out programming these new inverters in split phase since VictronConnect isn't working for me. Your video is by far the most helpful I've found, it made it easy. Thanks a lot!

[@PanelsUpSolar]

@@DreamIt_PlanIt_DoIt glad it worked out for you. Let me know if you have any questions.

[@LuckyCharmRVing]

This is one of the best configuration videos we’ve seen, especially for split and parallel phased setups. Great job Justin!

[@BecomingOffgrid]

This is a great video. I knew literally nothing about victron inverters at the beginning, and mine are now in parallel and no longer throwing errors! Thank you for sharing!

[@PanelsUpSolar]

Glad you found it helpful. Let me know if there is anything else we can help you with.

[@brycematson1626]

This video was a big time saver when installing the same dual Victron inverters that you have but in a parallel configuration. Battle Born referred me to your video and I'm glad they did. I couldn't believe how easy it was to set up the inverters for parallel operation after referencing your very clear video. Note: I ran into one SNAFU (not your fault). Victron's installation manual says to connect the Ethernet cable to the right side connector (#2) which gave me an error message on my CCGX. After calling Battle Born, they said to use the left side connector (#1) which solved the problem since that' the one they use to program the inverters (I had them do the basic programming of the inverters which they do at no charge but they don't set them up for parallel or split phase). Thank you very much Justin.

[@PanelsUpSolar]

Glad it worked out for you and that I could make it a little easier for you. Hope to cross paths some day. Be sure to stay in touch.

[@carlossantini]

Im amazed Victron didn't uploaded this instructions in the first place. Shamed on them. They should pay you for this. Thx u!

[@bluetrepidation]

You are a baller for running these apps in Wine and having an excellent explanations of all the Victron utilities.

[@PanelsUpSolar]

Glad you enjoyed it. Things have changed a little since this video was released with the Mac OS so I was forced to upgrade to parallels. But you can do a lot more with the native VictronConnect software now. However once thing that can not be done is setting the inverters to not switch as group.

[@bluetrepidation]

@@PanelsUpSolar Can you set battery type to LFP? And install assistants?

[@PanelsUpSolar]

@@bluetrepidation going through Parallels yes. VictronConnect does not support assistants yet. You can set the charge parameters for your specific battery bank and change chemistry characteristics. Depending on what kind of assistant you are wanting to work with, VictronConnect does have some upgraded settings such as AC ignore to disconnect the mains until specific parameters are met such as load or state of charge.

[@sammybittok4567]

You're a star Justin, thank you.

[@PanelsUpSolar]

Glad I could help. VictronConnect makes it even easier accept for the switch as group part.

[@erikrezlman7900]

Great video! Slow and methodical for all us Lay-People. Thanks

[@ozon8r]

Great videos. Took me a minute to figure out how you say "ethernet" as "eh-ther-net" rather than "e-ther-net" as I have always heard it pronounced in the IT world.

[@PanelsUpSolar]

ozon8r yep its a shame that Silicon Valley can butcher the english language even more by not following typical spelling guidelines. 🤣

[@MmeHyraelle]

Aether-net :D

[@saintacquaint]

Thank you very much for this info Much appreciated

[@KELLYPARRISH]

Can you please explain the scenario where the advantages of split phase versus parallel and vice versa would be desirable? Thanks!

[@PanelsUpSolar]

@@KELLYPARRISH if you have a 50 amp coach and are using two single phase inverters, you will want to set them up in split phase. If you are using two 2x120 inverters, then Parallel may be a better option. If your coach is 30 amps, you could use two inverters in parallel to double your current output.

[@KELLYPARRISH]

@@PanelsUpSolar - thanks! We have a 50 amp coach with two 2x120 multiplies II set up in parallel. Was just wondering what the difference would be set for split phase.

[@PanelsUpSolar]

@@KELLYPARRISH if you set up the inverters in split phase, L2 would not function on the two inverters you would lose functionality of the combining contactor will not function. Each inverter would have to be set up to power its own leg of power with one designated L1 and one designated L2. Your current limit would be 3000va per leg. But the benefit would be that you can decrease the max current limit from your shore connection down to 9.5amps total.

[@1stClassRVadventures]

Justin is a genius and my life saver 😍😍😍

[@ChickerysTravels]

Nice job breaking it down, Justin.

[@snoobler]

Nice work. I've seen the Victron professional training video for this (too much emphasis on 3 phase). I like this one better.

[@PanelsUpSolar]

Thanks. Though through the development of their firmware and system software, the configuration process has been getting easier. I will be putting out a new video soon

[@Pineys_Mtb_adventures]

Having little issue with my split phase system. When I was hooked up to 50a hookup everything works fine but when hooked up to only 20 single leg inverters don’t initialize the shore power and strictly invert. Could that be related to the adapter sending the same phase to both inverters?

[@PanelsUpSolar]

Hey Ralph - Justin is out of town this week doing some training with Victron. We actually run a solar installation company, so if you send him a message by email, he may be able to get to it faster. [e-mail]

[@TsaWind]

Checkbox on the left says "Switch as group" in the VE.Bus System Configurator. Default it is checked, so if they don't see both hot legs, they wont switch to pass-through/charge ect. Unchecked, you can now make split-phase power output from single phase power input! (Master will pass-through/charge ect based on input current setting, slave will be in inverter mode)

[@daninbenson]

​@@TsaWind Thanks for answering this year old post- I'm watching this because I'm commissioning a newly installed system (diy) and this really helps! Now I understand what that checked box does- first explanation I've seen.

[@TheMasterMUF]

I’m in the process of installing two multiplus 24/3000/70 in split phase. My question is: will I get 140 amps of charging current into my battery bank 70 from each inverter or just 70?

[@PanelsUpSolar]

If they are configured correctly and the power coming in matches the configuration you will get the max if it set up correctly. By default, the inverters are not set for full charge output.

[@marccalello]

I have the same question today. Does running in split phase nullify one of the chargers?

[@BATTERY73]

Very cool! Thanks for the detailed configuration videos, keep up the good work.

[@PanelsUpSolar]

Glad it brought you value.

[@BATTERY73]

Opting Out of Normal Very much so, I got 12 KWh worth of batteries that are in need of a Victron Quattro! kzbin.info/www/bejne/pZ-thGOrar2ei5Y

[@PanelsUpSolar]

Crimp Daddy what are you going to power. If you are looking at split phase you will need two quattros.

[@BATTERY73]

Opting Out of Normal Correct, 2 Quattro inverters. This will be a home solar / power backup solution for a stationary installation. All regular home appliances.

[@JeffreyFay]

Paralleling the inverters doubles the power, does it have any effect on charger current? I.E., does the 120 amps become 240 amps?

[@PanelsUpSolar]

Yes, but that happens when you have them in split-phase as well.

[@JeffreyFay]

@@PanelsUpSolar Thanks!

[@johnsmith1424]

Justin thank you for all your information,I’m trying to set up my 2 multiplus in split phase following you directions to a T at 11:36 on your video when I get to this screen I don’t have a Quik start button to click,in my bottom left in red mine says (devices must have same firmware version) and it also says same as yours with no device in group,I can’t go anywhere with out the Quik start button,please help

[@PanelsUpSolar]

Have you tried to set the inverters using VictronConnect? That program has made it very simple to make sure firmware is updated. You will still need to come back to this point to make sure you uncheck switch as group though.

[@johnsmith1424]

I have not it was my understanding that this way checks for all updates and does them as needed,I did try to move Ethernet from master to slave to try and do firmware updates but com would not even see the slave even when turned on

[@PanelsUpSolar]

@@johnsmith1424 Ve Configure 3 will not automatically check for the latest firmware. VictronConnect does allow you to update the firmware to both inverters and then configure the inverters for split phase operation. But you need to come back to VE CONFIG 3 to be able to make the change to switch as group.

[@johnsmith1424]

Okay I will go that route thank you

[@brucebaumgartner8290]

Chance you could show a wire diagram on AC outputs of each of the converters a little confused on how you would wire both split phase and parallel out to a power box

[@PanelsUpSolar]

I actually never change my system out of the split phase wiring configuration. This video was to demonstrate how easy it was to switch the profile from one to the other. Benefits would allow for rapid charging due to both inverters charging from a single phase of power.

[@USHighwayCadillac]

Great video. This really is great information.

[@rjoustra1150]

When you make the change over once the profiles are configured and saved do you need to have incoming AC and or outgoing AC off at the time?

[@PanelsUpSolar]

Richard J no you can have it on but it will cycle.

[@rjoustra1150]

@@PanelsUpSolar So I programmed the parallel profile and turned back on the split phase AC and the second inverter went in to an error. I was figuring it might not be happy but assumed it at the very least would reject the incoming AC and start inverting similar to what I am told happens if they are configured split phase and you give them the same phase, but I believe both inverters shut down although I did not go check the AC on inverter 1 I just switched them back and figured I would try it when we needed it. Have you tried to run them in parallel with incoming split phase? Thanks for the help...

[@PanelsUpSolar]

@@rjoustra1150 I do not recommend running large loads in the trailer when configured in parallel without them wired in parallel. I have done it to speed charging from the generator but not in split-phase because they are looking for the same phase input.

[@joegleason4306]

Hey there, I'm still a little confused on the split phase piece. It sounds like one unit can only monitor one leg and L2 is just a pass through if plugged in to a pedestal. Is there a way to configure two units with one monitoring L1 and the 2nd monitoring L2?

[@PanelsUpSolar]

No each inverter is supplying power to its leg. Which means that they are monitoring the leg. When connected to a single phase source, L1 being the leader will pass through power and provide assist. It will also charge the battery bank. L2 will only invert power.

[@joegleason4306]

@@PanelsUpSolar thank you for the clarification.

[@charlesrg]

Great video, do you think you could use the output of each phase in split phase mode to power 220V appliances like a dryer ?

[@PanelsUpSolar]

You can use the output of the two as long as they are configured in split-phase to get 240 volts out of the pair. They give you the same kind of power that you would get from a typical RV Pedestal. But one thing to remember, when using an inverter to power something electrical that produces heat, loads will be high.

[@gregoryhenriksen957]

How do you set floating return to ground on second inverter

[@PanelsUpSolar]

I am not quite sure I understand your question. Are you asking about turning off the neutral to ground bond in the second inverter?

[@billkresge9217]

Fantastic help here. I am just getting ready to program my 2 5000w Quattros in parallel and split phase. Have gotten this far with a great deal of assistance from Juan at beginningfromthismorning but he only has the one inverter so his panel is at 120V. You are helping me get the rest of the way and after trying to slog through the info that Victron provides you are a welcome breath of fresh air. Two questions, first what is the difference between your split phase config and your split phase floating? Second does turning off the ground relay have any effect on the wiring out of the inverters into the electrical panel. Currently I am planning on taking 120V out of the L1 on each inverter. My electrical panel is less than 30 ft from my inverters so I was going to run a hot, neutral and ground out of each one. Sounds like I need to keep all my cables the same length and I was going to put the two neutrals together under the neutral lug on the panel and run the grounds to the neutral bar. Is that the best way to go and if not, what would you suggest as an alternative? Thanks again for this great help, currently Victron is in a Catch-22 situation. They want to increase their market share in the US but they don't have enough qualified people away from marine centers to meet the demand. Until they increase their market share they won't have enough qualified people to help homeowners, or in my case farm owners, set up parallel and more complicated systems. People like you are helping bridge the gap and for that I am profoundly grateful!!

[@PanelsUpSolar]

Hi Bill, I am glad to hear that you are getting value from my videos. It would be great if there was a little more factory support for sure, but I understand the reasoning for the model that they have to push the main support to the local vendor. That is where they need to increase their footprint in my opinion. I look back to when I lived in a stick and bricks and realize that for a back up or off grid system, solar is definitely making many advancements and a Victron system could be a viable solution for many regular residential setups. Though you would now be tied to government regulation. For your questions, I have not noticed a difference in the two different split phase settings. Though I have to say I have not often been plugged in to shore power much. The way I understand how it works, I believe that the floating split phase just allows for a little bit of extra leeway for the inverters to allow passthrough and charging. I would think that it would be a bigger concern to want to keep the phases 180 degrees out if you are using the potential 240 volt output. For the ground switch, since with my system would always have the master/leader providing the ground to neutral bond if needed, I did not want to possibly introduce an issue if the follower tried to create the bond when connected to an external single phase source of power. As far as the output for the wiring goes, there is no difference. As far as wiring the panel, the grounds do not go to the neutral bars. They would go to a separate grounding bar. the neutrals are isolated from panel grounds. You need to wire your panels like a sub panel, not a main panel. Your ground bonds should occur either in the inverter or at the main source of power pre-inverter (either generator or shore power). I would be interested in seeing your system if you would care to share.

[@billkresge9217]

@@PanelsUpSolar I would be delighted to send you some pictures. I haven't tidied things up yet, always hate to re due wire ties and such if I need to make changes. Do you have an email address you prefer to receive such things at? I also have a question on your hat swag, and want to promote your message. The shopping cart software doesn't like my shipping address and I'm concerned the hat may not be big enough for my massive noggin. Hope to be communicating with you soon

[@daninbenson]

​@@PanelsUpSolar It's my understanding that some RV parks wire their pedestals with 3 phase (only putting 2 phases at each pedestal). Those phases are 120 degrees out. The "float" setting will allow it. Without it they set a fault. Most 50 amp RVs would never notice as they only use a single phase to each of 2 panels.

[@PanelsUpSolar]

@@daninbenson Yes, it occasionally becomes an issue for some people. But it is easily corrected for those with the knowledge.

[@robellis3990]

Can you show me what your out put from inverter look like ? I also have 2 inverters just haven’t tied the out put together.

[@PanelsUpSolar]

Currently my inverters are set up in split phase. If you check out my walkthrough video, you will see how my wiring is configured. Or are you looking for output data?

[@CryptoNut82]

On my split phase I had to program the assistant for ESS on each inverter by itself, otherwise with just have master having it I got +1800watts on L1 & -1800 watts on L2 for a total of 0 watts. Wowed shit but adding the ESS to the slave fixed it thankfully.

[@benjones8977]

Just came across your video, thanks. I just wish the software was for the Mac and not for windows, as I don’t know how to use windows.

[@PanelsUpSolar]

The good news is that there is software that is now available for the MAC. Victronconnect can now be used to program the dual inverter configurations.

[@benjones8977]

@@PanelsUpSolar The problem is you have to buy windows & download on a Mac to be able to use Victron. I don’t know anything about windows or how to use it, nor do I want to buy it.

[@PanelsUpSolar]

@@benjones8977 VictronConnect is available for the mac and you can find it in the apple store. You will still need the MK3 dongle but you will be able to do all the configurations with the mac.

[@benjones8977]

@@PanelsUpSolar I’ll have to look into it, thanks. Funny when I contacted Victron sales they specifically said I had to use PC software. I already use VictronConnect for my charge controllers, but I haven’t tried it except with the limited settings for the inverter.

[@PanelsUpSolar]

@@benjones8977 Yes, you can do much more with it when you connect it to the system using the MK3 usb to ethernet adaptor and connect to the vebus side of the gx system.

[@9111logic]

Thank you so much for sharing, 🙏 I'm expecting my second Multiplus II tomorrow ready to set the two up in parallel. Only one doubt after watching your video, will all parameters be sent simultaneously to both inverters or do we have to repeat the process twice? Again thank you 🙏

[@PanelsUpSolar]

Sending parameters to both is an option. Inn parallel, it is important to make sure that wire lengths are equal. What are you installing the system in?

[@9111logic]

@@PanelsUpSolar The system has been up and running for six months for my off grid outbuilding, I am aware of the cables length and trying to fin a way around it as I did not design it for twin inverters. As it stands I would have 40cm difference for both DC and AC so I'll have to rearrange the wiring but I was questioning what degree of impact they would have if left at that moderately small discrepancy (1m vs 1.4m)

[@PanelsUpSolar]

@@9111logic it is pretty important that the lengths are similar as the inverters are going to perform as a pair.

[@RVLIVINGLIFE]

Great video, finally a decent walk through. Question though. I have looked through your videos and do not see how you actually wired the invertoers. Are they wired paralel or split phase? I wired mine with the 6/3 cable split and line 1 (black) along with nuetral and ground to the left inverter and line 2 (red) along with nuetral and ground to the right inverter. Then it all joins up again to a 50 amp breaker at the panel. I have tried your setup and it doesnt seem to work for me. is mine wired different then yours?

[@PanelsUpSolar]

Mine are wired in split phase. I have another video that has the wiring drawn out.

[@RVLIVINGLIFE]

@@PanelsUpSolar Thank you for the responce. I looked through all your videos and can't figure out which one has the diagram. i am pretty sure i have it right, but confirmation would be great. Can you kindly provide a link? it would certainly be appreciated.

[@jmr8111]

Great info ! I see that you have the trimetric meter still in use and a smart shunt with the cerbo gx im guessing ? How did you wire it so that you could have both ? Thank you J

[@PanelsUpSolar]

They are both measuring the same shunt.

[@TurboAdam]

Hey Justin, I have a 50a 240v shorepower connection. And I’d like to get 2 multiplus 3000’s, but do I want to set them up in split phase or parallel? What happens if I adapt the 50a 240v inlet to use a 30 amp 120v cord? Will the inverters care if the incoming AC legs are NOT out of phase? Also what if one of the 120v legs is lost from the 240v inlet, but not the other. Do both inverters switch to invert? I don’t need 240v in the RV, that’s just how it comes in, and the panel is divided, but parallel operation would also work. What do you recommend?

[@PanelsUpSolar]

I recommend split phase if you have 120/240v access. If the follower leg drops off the Leader inverter will still charge, and power assist. The follower will only invert.

[@RoamingWithRosie]

Hi Justin - Greta video! I have a question I went though your video and configured the inverters and the inverters work, but my multi is not charging in regular mode or charge only mode. Have you heard of anyone else having this issue?

[@PanelsUpSolar]

I have not heard of anyone having issues. Are neither working or just one?

[@jpence151]

Justin, in split phase are you doing in and out 50 amp wires to both units or just 1. Do you split L1 and L2 to Separate units. Learned a lot from this video, but I have seen drawings with Neutral, Ground and L1 to unit 1 then Neutral, Ground and L2 to unit 2. then the to outs are rejoined at the fuse box. I am connecting 2 12/3000/120-50. I need 240 for my AC. Thanks for your help.

[@PanelsUpSolar]

Yes each inverter carries its own leg. kzbin.info/www/bejne/aoLGYYeCh8tqm5I

[@johnk1325]

Excellent video, many thanks. I’m looking to add an additional 3000va multiplus to my system and configure them to run in Parallel for the occasional times I need additional power. My question is, can the slave be turned off when not required (to save power) or will the Master only run when a slave is present?

[@PanelsUpSolar]

When configured in parallel, the inverters will both need to be operational. If the slave is turned off the master will throw an alarm and shut down. At that point you will need to reconfigure to two stand alone inverters and disconnect the communication cable between the inverters. Then you can run just a single inverter.

[@Vagabundobr]

A question about the inverters, we can configure the 220v inverters to 110v mode or the 110v to 220v? wanna buy some, but here in my loc, only sells 220v and we use 110v in the normal ways.

[@PanelsUpSolar]

I saw that there was a voltage adjustment but never played with it to see what the limits were. You would be better off asking your local Victron distributor.

[@57beanyboy]

Hi Justin. Do you mind answering questions about the actual wiring in parallel of two inverters? I am not an electrician but I would like to wire two inverter/chargers in parallel myself. I doesn't look to difficult but perhaps there is more to it than meets the eye. Regards Jon.

[@PanelsUpSolar]

Jon Phillips I don’t mind. But keep in mind I am not a certified electrician and you need to be confident in your abilities and accept responsibility for your job. For for true parallel you can only have 1 hot supply leg so if you are plugged into 50 amp you will only be able to use one leg. So you need to feed both inverters with that one leg and then you need to combine both outputs of the inverters to one leg that will feed your coach.

[@57beanyboy]

@@PanelsUpSolar Thanks for that advice. I intend to run two battery banks to two bus bar then supply both inverters from the negative and positive bus bars. The 240v output will again go to two bus bars. This should even out any differences due to resistance in the wires. I will make all wires the same length. Does that sound ok to you?

[@PanelsUpSolar]

Jon Phillips I think I will need to see a wire diagram to see exactly what you are thinking. Each inverter will only put out 120 volts. You get 240 volts AC output by running your inverters in split phase. If you join my Solar group on Facebook it will be easier to send messages back and forth through messenger that way. You can also see my walk through video for my system to see how my system is currently wired.

[@TheUnlocking]

Opting Out of Normal...Hello there Justin. It’s great to find someone who is willing to impart his knowledge of solar systems. Please help; where can I find a real diagram or pictures or videos on how to physically connect 2 MultiPlus inverters in parallel with an MK3 USB and the UTP cable? Your explanation is great but how about showing where the cables go? I’m going to get a second MultiPlus and I need some knowledge how how that is done. I’ve tried the Victron data sheets but they are just too complicated for a newbie. Thanks

[@PanelsUpSolar]

@@TheUnlocking So you are asking how to connect the com cable? Or are you looking for instructions on how to parallel the inverters themselves?

[@mrmotofy]

Does this require 2 MK3 to usb adapters or what's the physical connections needed?

[@PanelsUpSolar]

mrmotofy a gx device connected to the inverters with ethernet cables are required to get them to work together.

[@mrmotofy]

@@PanelsUpSolar So there's 1 mk3 adapter and 1 ethernet from each inverter? They both connect to CCGX or does 1 inverter plug into the other and connect through it. Can the ethernet cables just connect to a regular network switch? Trying to understand the physical link options

[@PanelsUpSolar]

mrmotofy you only need 1 Mk3 adapter when programing the system. The inverters are daisy chained directly to a gx device such as the CCGX or the new Cerbo unit.

[@trigmish]

How is the AC input wired between the two?

[@PanelsUpSolar]

When in split phase, the inverters should be wired as such. if configured in parallel, the lengths of wire should be exact same length and of sufficient capacity to carry the current.

[@Aaron71304]

On split phase, with single 15 amp 120v in, I can charge my batteries on shore power as long as the circuit is not GFI protected. The GFI protection on my generator will not let me charge as well. Any ideas?

[@PanelsUpSolar]

Turn of loads when transferring to the generator. Could be a wiring issue or a faulty gfci

[@Aaron71304]

@@PanelsUpSolarThank you for your quick response. I ended up unchecking the ground on the AC leg in on the Master, and checked the ground on the slave where there is no input and now it's working. Does this make sense?

[@PanelsUpSolar]

@@Aaron71304 a gfci detects a difference between current flowing through the hot legs and Neutral wires. When the inverters are plugged into the generator or a shore connected source, the neutral to ground bond should be coming from the power source not the inverters.

[@elsalsero9634]

Do configure the master and slave individually or when saving the settings in the master, is the slave automatically configured?

[@PanelsUpSolar]

When using the ve configure software the master and slave are identified. You then have to go into the individual inverters and program the settings. You can save the settings to all though.

[@rjoustra1150]

Okay I have a question. On your CCGX do you see and increase or fluctuation in the DC LOADS box as you increase AC Loads. It shows I am pulling about maybe 180w without the AC's running and with them on I am pulling 350-400 watts. Not sure why this is. All loads come off of the same buss bars. Is this normal or is something a miss. Thanks again for your help.

[@PanelsUpSolar]

The DC loads box is not an actual measurement but an internal calculation. It is not 100% accurate. There is no reason for concern.

[@gsahlstrom]

Great video, but difficult to hear, even with my earbuds on...any way you can boost the audio?

[@PanelsUpSolar]

I am sorry it is difficult for you to hear, have you tried turning on the captions? They are pretty accurate to give a good understanding of the requirements to program the inverters.

[@jungleplant]

will this work for a generations of the 3000 watt multiplus

[@PanelsUpSolar]

Yes, it will work for all of their inverter/chargers. But there are some easier ways now as well. The VictronConnect app can walk you through the entire process.

[@luyandalatoya3654]

hi there the led's on a slave flickering between mains on and inverter is that normal?

[@PanelsUpSolar]

I am not sure what you mean by flickering. It does not sound normal but the cause could be several things.

[@06291960able]

Thanks!!!

[@900one]

Thank you very much

[@PanelsUpSolar]

Glad you found it helpful.

[@gsahlstrom]

Hi Justin... I am working through your video to set up my two multiplus inverters. About 10 minutes in you switch from the VE bus quick configure to the VE bus system configurator, where you mention to click on “quick start“. That is not popping up on my screen. I don’t know if I’m doing something wrong but would appreciate some input… Thanks and advance!

[@PanelsUpSolar]

George Sahlstrom the quick start option will pop up when the program first starts up and has not connected to any of the inverters yet.

[@HOUSE_ent]

Hey brother I’m having a hard time saving my configuration as vsc file can you give me a tip

[@PanelsUpSolar]

Is it giving you an error? How are you trying to configure the inverters?

[@georgehorwell4271]

So I have 2 3000w 24v multiplus setup. If I run them in standalone everything works fine. If I change them to parallel, they start up but overload about 30sec after switching on. This is in a 50amp rv with l1 and l2 each split and going to each inverter. 1 leg on each and then each one is connected to half the breaker panel. Can you give me any idea why this would shut down? Thanks

[@PanelsUpSolar]

When the pair is set up in parallel, they are looking to be on the same phase. If they are not on the same phase, they will error out. If you are running them in standalone, the inverters are not looking for each other. They are also not monitoring each other which can create a risk of fire. The 6awg wiring is only rated for 50 amps of current. If the two inverters are on a single phase passing through generator power and providing power assistance, each leg may see less than 50 amps, but when those legs combine on the neutral, your amperage could easily exceed 50 amps.

[@georgehorwell4271]

@@PanelsUpSolar makes sense. I called tech support and they advise running in split phase which I will try next when I get a moment. Ah fun!... Thanks for the info!

[@georgehorwell4271]

So one other question on this video. I noticed you have a saved setting called split phase floating. I see where that is configured in the software. Can you explain what it does?

[@PanelsUpSolar]

@@georgehorwell4271 split phase floating is if the second phase is not 180 degrees out, it will try to connect anyway. What it means is that you may have less then 240volts if relying on both legs.

[@georgehorwell4271]

@@PanelsUpSolar thank you!

[@Foxfried]

DId you look at the quattro instead of dual multiplus?

[@PanelsUpSolar]

A single Quattro alone does not function the way two inverters do. There are a few different ways to power an entire coach.

[@esquire9445]

Can this do split phase if the only power source is solar?

[@PanelsUpSolar]

The reality is that all of the power that the inverter relies on is in the batteries. Solar panels and solar charge controllers are just another form of battery charger. You can not power the inverter on solar alone. So if the question is will these inverters provide split split phase output regardless of any outside power sources received, the answer is yes. As long as they are configured that way.

[@salimhadjcherif7349]

nice jobs

[@matthewbrigham5981]

Hi Justin...I've heard that we can no longer use the Wine/Mac option due to an update with Victron's software. Do you know if that's accurate?

[@PanelsUpSolar]

It was not an issue with the victron software but with wine no longer being supported in the latest Mac OS. As long as you are not running Catalina on the mac, you should still be able to use it to configure the inverters.

[@matthewbrigham5981]

Opting Out of Normal thank you! I just ordered the MK3 and will give it a shot once I finish wiring my two Multi’s.

[@matthewbrigham5981]

@@PanelsUpSolar Justin...could I possibly call? I reached out on FaceBook messenger. A little desperate here lol.

[@88corinutza]

if you had 2/ 24/3000 running split phase i could hookup my 230 volt 12,000 watt dual fuel generator to charge batteries ??

[@PanelsUpSolar]

If you can plug in a Regular 50 amp rv plug to it you certainly could. But if you used a small 2000 watt inverter generator you could also do it. The chargers of each inverter/charger will only use about 1800 watts of power at full charging capability.

[@TheUnlocking]

Hello there. This is indeed a brilliant video. It is well explained and you definitely have a wonderful knowledge and experience with these Victron products. There is a couple of areas though where I got lost and I need your help, please: 1. When you say that besides connecting to the inverters, you can also connect to the back of the Color Control, that means you would have connected both inverters prior, using an RJ45 UTP cable, right? Then another RJ45 UTP cable from one of the inverters to the Colour Control, correct? 2. Again, you need a third RJ45 UTP cable to connect the Colour Control to the MK3 USB, in order to configure the 2 converters, using a laptop, am I right? 3. As long as I have downloaded the software to the laptop already, I do not need an internet connection to start and complete the configuration, right? Thank you kindly! Regards, Obediah

[@PanelsUpSolar]

you can do it with two Ethernet cables if you disconnect the CCGX and use that cable or just use a third to plug in to the second port on the back of the CCGX. You do not need internet to do the configuration. but the software does do a software update check at start up but should skip that part if no network is detected.

[@TheUnlocking]

@@PanelsUpSolar Thank you so very much, you are a star. I spent days trying to figure this out. Today, my headache is history, imagine that! May God bless you sir!

[@TheUnlocking]

@@PanelsUpSolar Excellent, thank you sir. By the way, I forgot to ask: should both inverters be connected to the battery bank, when paralleled? Or only one should?

[@PanelsUpSolar]

Obediah McMajor yes they need to both be completely connected both to the bank and their AC connections.

[@TheUnlocking]

Opting Out of Normal. Okay I get the DC part. But are you saying that the Master and the Slave will have to have cables coming out of both units, and connected separately and individually to the AC distribution box?

[@M35a2guy]

This has got to be assuming you don’t ever run 240 volt loads in a coach? I don’t own a coach so I don’t know.

[@PanelsUpSolar]

Yes, it would not provide 240 if the inverters are in parallel but would allow for 240 amp charging from a single phase source of power. However it was to much trouble to set up the rest of the parallel wiring so I ended up buying an autotransformer to install before the inverters.

[@robertvillarreal6150]

Thank you for taking the time to do this video. Question, does Victron make an inverter with split phase capability’s by it self ? Was hoping to use one unit to run a 240v split phase water pump.

[@PanelsUpSolar]

I thought I answered this but I do not see it here. Sorry. If all you are trying to do is run the water pump, I have learned that the European models can be programed for the current output. Not sure if that will make it any easier for your or not. But if you also want to run 120v you will need to get two inverters.

[@salimhadjcherif7349]

Haw to configured quattro Three vase

[@PanelsUpSolar]

I suggest you check out the information available on the Victron Energy website for your specific needs. I believe it is a similar method to what is required for split phase. However, I do not want to give you false information.

[@STRUTZKOFF]

set boost factor to 1.1

[@PanelsUpSolar]

What is the reasoning for doing that? Are you having a problem?

[@sailinstyle]

This makes no sense if you are talking about configuring the AC output of the two inverters for either parallel 120 or split phase 240. Your configurations, taken independently, each make sense, but you cannot then arbitrarily reconfigure and operate the inverter pair in either of these modes without reconfiguring the AC wiring to match the configuration, and you never mention this. A parallel pair will have each of their L1 and L2 connected to the other's L1 and L2 respectively: L1 to L1, L2 to L2, and one of those will become the neutral. A split phase pair cannot operate connected this way since the two legs are, by definition, 180 degrees apart, not in phase. I expect the two inverters to be wired in series, with a single L from one connected to the other forming a kind of pseudo neutral, and one L from each inverter providing one of the two legs of the 240V output. I came here to see that AC wiring and you never discussed it.

[@PanelsUpSolar]

I am sorry you did not get the value from the content that you were expecting. When I started this video years ago, I was going to put in a manual transfer switch that was going to allow me to switch inverter outputs around as needed. What I then discovered was that I rarely ever needed to use the parallel configuration.

[@sailinstyle]

@@PanelsUpSolar Thanks for the reply! So yes, if your ultimate design would have included a switch on the inverter outputs to reconfigure them for each mode then the whole thing as a system makes sense. I also agree that this would seem to be a rarely needed feature.

[@PanelsUpSolar]

@@sailinstyle it was originally going to be to take advantage of being able to charge the bank with both inverters when running on a large single phase generator such as the standard Onan 5.5kw used in a lot of RVs. I never had one so I never had the opportunity to set it up. Then I simply installed a pre inverter autotransformer and Both inverters would charge as needed.

[@sailinstyle]

@@PanelsUpSolar The autotransformer is exactly what I was thinking. :)

[@alancairney4000]

Far too quiet ... hard to hear.

[@PanelsUpSolar]

Alan Cairney the intro is a little quieter than the rest but the audio does come up during the instructional point. I will try to do better on the remake.

[@Foxfried]

3 mins or less...on 22 min video ;)

[@PanelsUpSolar]

Well I teach how to set up both configurations. The final outcome is that if needed, you could switch between them or any saved configuration in 3 minutes or less. It could be useful if you wanted to switch which leg was playing the role of Leader/Follower.