Existing multiplus parallel setup needs to accomodate 3phase load

Hi! o/

I presently have 2 x 48V 3000 VA Multiplus VICTRON PMP483021010 in parallel connected to a LiPo Freedom Won 20/14 LifeP04 KWh battery working great in an offgrid config (+ victron solar gear charging + genset).

Soon I will need to add two three phase devices as load 400 V AC (+-15%) / 3 ~ max actual 32,6A. In addition I need to accommodate the current maximums allowed by my current setup (<=6000W peak, ~4400W sustained on single phase max ambient temp 40C in summer). The three phase loads will never be used at the same time as the max output of a single phase. This is for a small workshop, it's either or, never both. The three phase loads are large compressor + plasma CNC.

Below are the options I think I have. They are in order of preference by cost:

  • Option 1: add additional Multiplus in parallel allowing sustained ~6600w on a single phase + appropriately sized Variable Frequency Device (VFD) devicre to connect the 3 phase load.
  • Option 2: All Multiplus identical: phase 1: 2 x multiplus, phase 2: 1 x multiplus, phase 3: 1 x multiplus - will this work?
  • Option 3: 3 phase: each phase as single Multiplus 48/3000/50 + additional separate single phase circuit with Multiplus 48/5000/70.

Are any of these options non viable? Are there better options? Ideally option 2 would be 3 phase solution with a single phase using the Multiplus 48/5000/70 + the other 2 phases using my existing Multiplus 48/3000/50s - but I am told should never happen and Bad Things(tm) will happen - and so is excluded for that reason.

Thanks!

Nanzikambe







nanzikambe asked
Guy Stewart (Victron Community Manager) answered ·

1 Answer

#1 Device switched off

Hi All


Looking for some brainy Victron experts to help me with a problem installation. (Background: I work for a company that installs alternative power systems and we install 5-6 systems a month, predominantly using Victron Energy equipment)


The setup:

3 x Quattro 15kVA in an off-grid application using AC & DC-coupled solar on a Pylontech battery bank.
4 x Victron SmartSolar 250/100 Solar Charge Controllers
1 x Fronius Symo 15.0 AC coupled PV inverter
12 x Pylontech US3000 Lithium Batteries
Victron Cerbo GX with Touch Display

Setup: Off-Grid with a generator (80kVA)
PV Inverter Support Assistant installed

I get sporadic occurrences of notification #1 Device Switched Off, where the Phase 1 master inverter simply switches off.


What I have tried:
1. I have updated to firmware version 476 and replaced all VE.BUS cables with Victron supplied cables.
2. I have also tried replacing the phase L1 master inverter with a new Victron Quattro 15kVA Inverter.
3. I have tried to analyse all the available data on VRM, but I cannot see any drop in DC bus voltage, an overload from AC output or excessive generation from the Fronius PV.

When it occurs, all of the LED's on the Phase L1 Master simply go out, and the other two inverters present an LED sequence indicating that they are missing (not detecting) the master.

30s later the Phase L1 master restarts and the 3 inverters begin inverting again. No alarm in the VRM alarm logs. Only a notification on the Victron Cerbo GX indicating #1 device has switched off.


Would really appreciate some help.

Nicholas Herbst asked
marekp answered ·

1 Answer

Why is this system not fully charging the batteries from AC PV?

Dear all,


My parents have a new off grid installation in Spain (no grid available where they live). The installation was installed August 8th 2020. I haven't physically been able to and check their installation (due to covid restrictions).

I am not at all a Victron specialist, but have installed my own Solar system, and I am very much into LiFePO4 batteries/ DIY powerwalls / off grid systems in general.


I believe their system isn't working as it should, based on my experience, and therefore I started to study the parts used in their installation in order to help them find the problem (because the installer treats my parents as retired old people and says everything is working as it should). But, wait...


The parts:

* 39 solar panels:

- 12 280W panels connected to Victron MPPT150|60-TR Bluesolar charge controller

- 27 280W panels connected to a 5kW SMA sunny boy (sb5.0-1av-41 905). I don't know how the sunny boy is connected to the system. It's an "on grid" invertor according to SMA (= grid tie), therefore it would suffice to connect the SMA AC to the juntion box and it should regulate/synchronize it's output wave based on the Quattro AC (i suppose that the Quattro will act as the "grid").

* Quattro 48/10000/140-2x100

* 6 x 2.4kWh = 14,4kWh pylontech pack of batteries, good stuf

* Venus GX


The dashboard, at the moment, looks like this:

[image]



Facts/problems:


* Let's say that it's 1400hrs, the sun is shining bright, and the batteries are @ 60% and charging. Then, all of a sudden, the SMA stops putting electricity on the "grid". Often, the SMA sunny boy stops working for say 1 or 2 hours, losing critical energy in the winter and the end result is a battery that is say 80% charged instead of 100% at the end of the day.

So I checked out the statistics @ the moments that this type of scenario takes place (almost every day), check this out:


My father notices, for example December 13 (but this happens every day) that the Sunny Boy isn't putting power to the grid (He checks the Victron dashboard regularly, so he notices this quite soon), and he let's me know. So I start digging... And I notice this:

I notice that there are gaps in the production of the sunny boy.

[image]


I check the SMA error page, and at the moments that there are gaps in the production, I get frequency related errors:

[image]


So I go the the VRM-app, and dig into the frequency statistics:

[image]


To me it's clear that something is causing ripples in the AC frequency (from for example 11AM-> 1300hrs, 53Hz, which isn't just a ripple).


My parents state that their bulbs start flickering, change brightness when these peaks/gaps occur.


* Initialy the installer installed a 6KW SAJ invertor, but this invertor got so terribly hot, that after a week or 2 it died. The installer then replaced the SAJ with a 5kW Sunny Boy. I told him (through my parents, I didn't actually get to talk to the installer) to install a 6kW invertor, because my parents paid for a 6kW, and 27 panels in Spain cán in fact generate more that 5kW. But the installer said that that is non sense, a 5kW was just fine.

-> What the F*c#??


* The installer installed a 3-way switch for 'solar system', "off" and "generator".

[image]

When my dad connected the generator and sets the switch to generator, all lights inside the house started to shine brighter, a couple of LED-stripts/bulbs "exploded", and the quattro started clicking like a maniac (must be relays trying their best to regulate something).

i believe they miswired the generator connection to the system. I think that my dad is putting 220V onto the system (with the generator), but the quattro is the master, not a grid tie invertor. Therefore the quattro doesn't synchronise it's 220V with the generators. The result is, I believe, constructive and destructive interference and as a result the bulbs exploded due to the AC peaks.

Does this seem likely to be the cause/what's happening?



What my parents want:

* to have as much and as stable of a 220V system as possible

* to have the invertors charge the batteries as fast as possible, without devices stalling for no reason (because the loose precious daylight in the mean time)

* to be able to connect my parents 6KW generator to the system to power the house and charge batteries in dark weeks without a lot of solar power;


That's it, and that's what's promised by the installer.



Please give my your thoughts. I'm watching all that is to be watched on YouTube, reading datasheets, etc. but actual help/opinions of guys witch real Victron knowledge would be invaluable.


Thanks in advance.







hdb asked
marekp edited ·

6 Answers

Off grid inverter with batteries/no ess

Hello everyone,


I do really think that I need your help to understand how does my system work.

I have an off grid inverter QUATTRO with a floaded lead acid battery 48V and two regulators, i don't have an ess.

The installation was quite long and the technician didn't really explain how the system works.

Could you please explain me the process between PV, batteries and loads during the day and the nights.

It seems to me that in evening and night my batteries don't partecipate so only grid gives power, even if loads are few hundres.

Thanks so much



lorenzo-accaroli asked
lorenzo-accaroli commented ·

10 Answers

Equalization not possible for Victron off-grid AC coupled and DC coupled systems.

Hello!

I have spent many hours and days to make my offgrid system to perform an equalization charge on my OPZS batteries. I am now almost absolutely certain that my system will never manage to perform it properly unless Victron makes changes to the process. To be more specific.

I have a Multiplus 24/5000 an MPPT 150/70 (2000W panels installed) and a fronius 3.0 (5000W panels installed) on the ac out.

If I programm the MPPT to perform an automatic equalization, it will start the process after it has finished the absorption face. But as soon as the voltage increases the ac coupled Fronius dicreases its output to 0W and stops taking care of the AC loads of the house. So the MPPT power is distributed to the AC loads and what is left tries to equalize the battery. If the ac loads increase the things get even worse! The Fronius continues to give 0W an the the demand of the AC load comes from the MPPT and from the battery! So although there is plenty of solar power to manage the load and perform the equalization the fronius stays closed and the battery starts to discharge! Even if the volatge of the battery drops bellow the float voltage, the fronius stll stays closed!

If I manually start an equalization on the Multiplus together with the MPPT, thing are better, but the Fronius only gives a small percentage of the loads and does not give its full power.

If on the other hand I try to start an equalization only on the Multiplus from the CCGX, then the MPPT switches of and the fronius has to take care of the loads and the equalization at the same time.


This is very disappointing ! Practically my batteries will never equalize and they will be finally damaged.

Is there any change that Victron will improve the firmware of the Multiplus so it can take care of the loads when the MPPT is trying to equalize?

In the pictures below you can see that the MPPT is trying to cover the loads and the equalization while Fronius is closed.

[image]


Vangelis Beligiannis asked
seb71 commented ·

2 Answers

MyPv Ac-Thor AC coupled off-grid system settings

Hi All,

I'm planning off-grid system with PV and wind turbine. Based on the initial research I think that MyPv Ac-Thor is able to work as a dump-load for the wind turbine. I would also like to include a hot water boiler as prime excess power load.

I found this page https://www.victronenergy.com/live/actor_offgrid but there is no information about how to configure AC PV Inverter.

If I "define Frequency start value 50.1Hz and the Frequency end value 51Hz" in Quattro and Ac-Thor my guess is that AC PC inverter should have some offset e.g. start 51Hz end 52Hz. If all three have the same range PV Inverter will lower it's output so there won't be excess power for Ac-Thor, am I right?

I would like to use dump load only for wind turbine after boiler reaches target temperature. I'm not sure if this can be achieved using only one Ac-Thor.

[image]

Two units with following configuration seems to make sens:

1. First Ac-Thor 50.1Hz - 51Hz -> hot water boiler

2. AC PV Inverter 51Hz - stop

3. Second Ac-Thor 51Hz - 52Hz -> dump load for the wind turbine


Am I missing some better solution?

Thanks for your help!


dyju711 asked
thomasw-1 commented ·

1 Answer

Combine AC charging with alternator and MPPT in my 4x4 vehicle

Hi Community,

I would like to ask you for support in building a complete power supply and battery charging solution (starter battery and aux battery). I have several assumptions and I am looking for a victron combination of solutions that will optimally solve my challenge in terms of cost. Those are:

  1. when parked in front of the house, charging is to be done from the AC socket
  2. while driving, charging is to be done from the alternator
  3. during a stop in the wild, charging is to be done from solar panels on the roof.

I am not sure how to build such a system to meet all of the above. I will be grateful for your help

Greeting

Maciek

maciej-stolarek asked
JohnC answered ·

2 Answers

Battery voltage drop when high load is connected

Hello,

I have installed the following off-grid system, which has been working pretty good for one year.

  • 4 300W solar panels
  • MULTIPLUS-II GX 48V
  • SMARTSOLAR MPPT 150/35 48V
  • 8 Acid Lead batteries of 6V each (Deka GC15)

However I'm wondering if the behavior I see when I plug a 1200W water heater during the central hours of the day is expected.

As you can see from following graphs the battery voltage drops when load is active and jumps back to an higher value afterwards.

Reading other posts on this subject I've got this is expected indeed, but my question is: do I have to worry about this voltage drop? In other words: should I power on the AC generator if the battery voltage goes down to 46V like in the picture below?

Thanks a lot,

Matteo


[image]

[image]

the-salmon asked
the-salmon commented ·

2 Answers

On Board 12V supply

Hello wanted to power a 12V DC cellular router from a 12V supply that remains active even when inverter is shutdown. Where would be the best point to get that supply from on a Victron system

red-dirt asked
Justin Cook - Bay Marine Supply USA answered ·

3 Answers

Smartsolar 75/15, Hardcoded Voltages of load output mode "always on"?

Hi Smartsolar- Users :-)


I run a SmartSolar 75/15 together with 12W Solar Panels und a 12V (4S) Winston LiFeYPo 90Ah Battery in my Caravan.

Battery setup is kind of "90% full is enough -Setup" with 14V/13.4V/14.3V/30days balancing. HAve 1,7A Balancer boards on every cell.


Usually, i run the load output in mode "always on" when i use the caravan.

ATM, i am on holiday in Kühlungsborn at the Baltc Sea Coast, where Weather was quite bad. So i only got 130Wh loaded into the Battery the last 4 days, while i used 880 Wh for TV etc., all shown on the Victron Connect app.


Today, i noticed (from my gas warner beeping all the time when getting power, was the only device obn battery power at that time, taks 0,1A) that the load output switched off and on every few seconds. So i checked the battery voltage in the app: as far as i remember, it was at 13,2v.

That is way to early to switch off the battery power; these cells do have ca. 1200 Wh from 4,1V down to 3V/ cell.

Date shown here: https://www.faktor.de/batterien/einzelzellen/winston-lfypo4/lyp090aha-lifeypo4.html


Now, i changed the load output mode to user "defined 2" with off <12V and on >14,4v


I thought "Aways on" would mean" always on? Does anyone know if there are voltage limits in mode "always on"?


Best regards from Germany...


Frank

topsan asked
topsan answered ·

1 Answer

Can the PV inverter support assistant be configured to start ramping down at 57.6v instead of 54v?

At the moment the absdorption saying is 57.6v for absorption but the PV inverter support assistant ramps down Fronius when the batteries are at 54v so it takes far too long to charge the batteries under solar. When the generator is on, it will charge at 180amps until 57.6v then go into absorption then float as it's supposed to but when it's under solar it will charge at 180amps to 54v then ramp down considerably so even though the charger wants the power the PV inverter assistant won't allow it. Can the setings be changed in the PV inverter support assistant to chasnge it from 54v to 57.6 as per the charger setting?

daren-connor asked
Paul B commented ·

1 Answer

Phoenix Inverter into power distribution panel of house

When I bought this inverter I specifically asked if the output was 120VAC-on-black and 0VAC-on-white; they indicated "yes". But of course they lied. Like many inverters it presents 60VAC-on-black and 60VAC-on-white (as measured from the ground plug).

I'm trying to marry the output of the inverter into my new off-grid home's power distribution panel. I also purchased a 2-pole safety switch. So I have the black and white outputs running through each of those poles for the sake of safety before then going to the power distribution panel. That said, I find that if I keep the ground wire connected to the chassid of this panel then the white "half" of the power remains hot even if a circuit breaker is in the OFF position. So by disconnecting the ground output from the inverter at least that doesn't happen, ignoring the safety implications for a moment...

And yet, under any load it trips the 15A circuit breaker. Granted, this is a GCFI-incorporated breaker which is likely my problem at the moment.

Has anyone successfully managed to do what I'm trying to do? Is there a way of converting the 60/60/ground output into the more typical 120/0/ground?

outsourcedguru asked
outsourcedguru answered ·

1 Answer

Baud rate conflict 250/500kbit/s - Parallel Quattros-Cerbo-Pylontech-250/100MPPTs-Lynx....

Off-Grid system has 2 x Quattro 48/10000 in Parallel with 24 x Pylontech US2000 & LV HUB, Cerbo GX, Lynx Distribution system inc Lynx Shunt, 2 x 250/100 VE.Can MPPTs ground array, 2 x Fronius 6KW PV Inverters roof array. Perking 12kVA Generator. All kit a few months old. All Firmware updated to the very latest.

Following the Victron documentation Pylontech (Type B cable) to Cerbo VE.Can BMS connections. MPPTs and Lynx Shunt to Cerbo VE.Can connections. Quattros to VE.Bus connections. DVCC enabled, settings as per the book.

Problem: With CAN-bus BMS (500 kbit/s) CAN-profile in the CCGX as per the book, the MPPTs and Lynx Shunt disappear. They reappear if the baud rate is set to 250 kbit/s. Various problems manifesting such as auto-run generator stops working etc.

Am aware that others have had similar issues with the 250/500 kbit/s conflict. Any suggestions how to get round this - thinking switch the MPPTs to VE.Direct connection instead of Can but hate work-arounds and want the correct solution!

Thanks in advance!


colins asked
colins commented ·

1 Answer

Small kits for villages in Nigeria?

Good Morning,

I would like your opinion for the kits that will be for Africa.

All material will have to be from Victron and will be installed in villages without electricity in Nigeria.

Our client asked us if it would be possible to make kits of different powers for basic consumption with autonomy only for a few hours at night (250w and 375w are just led lighting and charging cell phones, the 800W for led lighting and a refrigerator) where a small generator can be coupled (Kit 4, 5 and 6).


Kits without Generator connection


250W Kit 1


1 MODULE Victron 175w Monocrystalline

1 Blue Solar MPPT 75/15

1Phoenix 12/250 230V Ve. Direct Schuko

1 Victron Energy 12 V 60 Ah gel battery


375W Kit 2


2 MODULO Victron 175w Monocrystalline

1 SmartSolar MPPT 100/20

1Phoenix 12/375 230V Ve. Direct Schuko

1 Victron Energy 12 V 90 Ah gel battery


800W Kit 3


2 MODULE Victron 360w Monocrystalline

1 Blue solar MPPT 150/45 tr

1Phoenix 24/800 230V Ve. Direct Schuko

2 Victron Energy 12 V 90 Ah gel battery


Kits with possible connection of generators for battery charging


800W Kit 4


2 MODULE Victron 360w Monocrystalline

1 smartSolar MPPT 250/70 Tr Ve.can

1 Victron Multiplus 12/800 / 35-16

2 Victron Energy 12 V 90 Ah gel battery


1200W Kit 5


3 MODULE Victron 360w Monocrystalline

1 Blue solar MPPT 150/45 tr

1 Victron Multiplus 12/800 / 35-16

2 Victron Energy 12 V 90 Ah gel battery



1.6kW Kit 6


4 MODULO Victron 360w Monocrystalline

Victron Easysolar 24/1600 / 40-16 MPPT 100-50

2 Victron Energy 12 V 90 Ah gel battery

antoniomoura asked
michelg answered ·

1 Answer

Multiplus 2 configuration with solar, battery, and grid input.

[image]

I am designing a system with the following components:

-1x multiplus 2, 3000w/48v inverter,

- 2x smartsolar charge controllers,

- approximately 2.5kw of solar

-1x fortress eflex, 5.4kwh LFP battery


The system will have an AC input which will normally be grid power, but can also be a generator if the grid goes down. (There is an existing generator interlock in the main panel that will supply power to the multiplus)


The output of the multiplus will energize a newly constructed critical load panel.


The goal of the system is for the inverter + battery to keep the newly constructed panel "off grid" and run primarily off the solar + battery. If solar is not sufficient to keep the battery recharged I would like to have the multiplus pull power from the grid as needed to meet the energy needs of the critical load subpanel.


Can anyone detail the necessary settings(or additional parts that I am missing) to have the system configured in this manner?

gspsolar asked
marekp edited ·

2 Answers

Training in victron management design

In my mountain south of France, when the snow thaws next spring and snowdrops start showing, I intend to change the management of my 2kWp panels ans 30kWh batteries to Victron. That will be in the hands of a Victron man in Grenoble, but I want to undertand every bit of the program.

I am trying to master all the possibilities of the Victron System, and write clear explanations for my son. But I get lost in all theses cross references, papers, manuals. Writing down my findings in a kind of training document (called 'Vic's Bazaar') does help, but I fear missing important points.

Is there a online training system that could guide me in that search? I am not a sea farer nor a PV specialist, just a retired engineer fully powering his house with PV (and an occasional generator).

Thanks for your help

Lionel

Lionel SEYDOUX asked
Guy Stewart (Victron Community Manager) answered ·

4 Answers

Is it possible to include Tesla Powerwall 2 in AC-coupled off-grid system based on Victron Multi?

Hi everyone!

I have an AC coupled off-grid system: MultiPlus 48/5000, 6kW solar panels, grid-type solar inverter Schneider Conext RL 5kW, 20kWh of lithium batteries.

Multi creates a grid and through frequency shift controls solar inverter. Solar panels generate electricity and through inverter feed my house and charge lithium batteries. Everything works almost fine.

Now I'm considering to expand the system to include more solar panels and storage. My primary interest is solar panels as sometimes I need more power from solar, for example to run air conditioner on a very hot day, when panel production deteriorates.

Adding more panels to the same system with single Multi is not recommended by 1-to-1 rule. I was thinking if it might be possible to add Tesla Powerwall with its own set of solar panels. Powerwall available in Australia is AC coupled and for grid applications only. I guess Powerwall should consider a grid created by Multi as a real one and feed the house and the grid itself. And Multi should be able to balance its own power with the power available in the grid.

Is there any major problem in this setup? Should I keep thinking in this direction?

Thank you.

Regards, Tim

timbo asked
gprado commented ·

2 Answers

Turning the MultiPlus-II 48/5000/70-48 off and on remotely from the CCGX

Hi,

I have an off- grid installation in the mountains in Norway (300km) from home and as the days grows shorter and shorter I have realized that the 18-20W the inverter draws will drain my batteries so I need to shut it down, I would like to turn it on again from time to time (remotely), but I have painted my selves into a corner since my WiFi 4G router is powered from the AC side of the inverter. I’m planning to power the router from the DC side, but if I cannot turn the inverter on again remotely (by the CCGX) I might as well leave everything as it is and shut the system down for the winter.

The system consists of the following components:

  • Color Control GX
  • MultiPlus-II 48/5000/70-48
  • BYD B-Box Pro 7.5
  • SmartSolar Charger MPPT 250/60

Regards

Sveinung

sveinung asked
Matthias Lange - DE edited ·

1 Answer

Pylontech (with needed ESS?) in an offgrid-installation

Hello,

in the Victron product compatibility-list the pylontech batteries are listed to only can be used in an ESS-system. I think this is necessary of the CAN.Bus-Communication. This means that communication only works with the ESS assistant (why)?

I have to wait further 6 months for grid-connection to be built. For that time I want to build a small DC-Coupled PV and a Multiplus with Pylontech-Batteries. A big AC-coupled 30kWp-PV will follow next year. Since I wanted to install a Victron-ESS anyway I am wondering if I could use the pylontech also in an offgrid installation until the grid is ready?
Alternatively I wanted to install the ESS-Assistant offgrid and hoped i can use the pylontech without discharging them to 0% when grid isn't available at no time. I also don't know if a generator would be accepted in the AC-In then when a grid code has to be chosen.

I red that ESS shouldn't be used in an offgrid-installation neither. I know that ESS doesn't make sense in that situation, but it has du be used to use the pylontechs?
So is there a solution to use these components until grid will be available?


Thank you!

porcini asked
Guy Stewart (Victron Community Manager) commented ·

4 Answers

RS 48/6000 and Pylontech batteries (how many?)

Hello everybody,

I have an offgrid installation with RS 48/6000 and 2x US2000 Pylontech batteries and I am wondering if two batteries is enough.

I can see that Victron has suggestion on how many batteries one needs for a properly functioning system depending on what Inverter/Charger one has. But the latest RS 48/6000 in not on the list!

It would be greatly appreciated if someone can provide any suggestions on how many Pylontech batteries are needed in a system with RS 48/6000.

Regards,

Alex

Oleksandr asked
Keith Arnold commented ·

1 Answer

How to synchronize AC output of two offgrid systems

There's an existing offgrid installation using 2x 24/3000 Multiplus in parallel. In order to charge an EV the owner plans on installing a 2nd offgrid system (with separete panels and battery) based either on 48V/5000 MP (one or two units in parallel - TBD) or a 8kVA Quattro.

For several reasons, the owner would like both AC outputs of the two Offgrid systems to be synchronized, that is, the voltage difference between both AC live wires = 0 V.


Offgrid 1 and offgrid 2 will have separate AC board, but may share conduits. There is (backup) GRID available both to offgrid 1 and offgrid 2 systems. How to achieve AC output synchronization?

I was thinking in using grid as input to both systems (even if not used) in order to the inverters synchronize. Or even feed one Inverter to the other.

Has anyone tried something similar?

elimac asked
Jack Peters commented ·

0 Answers

the best configuration for dc coupling off grid system

Do I need to change any default sitting of Virtual switch or assistants for a Dc coupling off grid system with only Quattro and blueSolar ?

abdallah-salamah asked

0 Answers

My first off-grid system design. Would appreciate feedback & critique

Hello all,


After many months of learning, I have decided to take a stab at designing the electrical power system for our off-grid van. I have a diagram of the system attached to this post below (Also hosted on imgur for high-res).


I have labeled everything except for fuse and wire sizes as I'd like to get some feedback on the general connections before I get into wire/fuse sizing.


A few extra questions/concerns I have:

- I have seen similar systems with 2 POS and 2 NEG cables feeding into the MultiPlus after the Class-T fuse following the positive bus bar. I have also seen systems with just 1 set of cables. For this system, which one would suffice?

- I have seen similar systems with 150A fuses coming directly out of each battery before they join at the positive bus bar. Would I benefit from this or is a 500A fuse sufficient coming out of a parallel battery arrangement.

- What type of solar panel arrangement would you recommend for this system (S/P/S-P)? I mislabeled the diagram (I named it Parallel but it's wired in Series)


This has been an amazing experience immersing myself into an area I knew nothing about just a year ago! This community has been awesome, can't wait to hear back!


Thanks,

Manny


[image]

manny-martinez asked
Guy Stewart (Victron Community Manager) commented ·

1 Answer

RS 48/6000 inverter VRM data (Solar yield and Consumption)

Hi!

Would be great if anybody can comment if RS inverter is expected to have "Solar yield" and "Consumption" tabs at VRM Portal anytime soon.

As is apparent from here these tabs are only available for Multis and Quattros:

https://www.victronenergy.com/live/vrm_portal:faq

Currently RS data looks rather dull...

Would be grateful for any suggestions!

Regards,

Alex


Oleksandr asked
Oleksandr commented ·

1 Answer

High battery voltage alarm on ccgx coming from mppt

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acdc-hansi asked
acdc-hansi edited ·

1 Answer

How to deviate the solar exceedance in an off-grid?

I would like to know how to manage the excess PV production once the batteries are full and all electric needs are supplied. I want to send that exceedance to a water heater for an off-grid. Thanks

tpwchr asked
Janek Plathe answered ·

3 Answers

Ve bus error 1 cause system shutdown or not

If one inverter of 15 *10 k three phase system shutdown and error 1 appear. Is it cause shutting down for all system or not?

abdallah-salamah asked
Alexandra answered ·

1 Answer

Inverter status "Off" after upgrade to v 2.60 of Cerbo GX

Hello,

After upgrading Cerbo to v2.60 the Inverter RS 48/6000 turned into "Off" mode. It works, but seems to be unable to communicate with GX.

[image]

I tries all profiles for VE.can port in settings but in vain.

[image]

Would be grateful for any suggestions!

Regards,

Alex

Oleksandr asked
Oleksandr commented ·

2 Answers

How do I enable AC2 permanently in an off-grid system?

In UK, but no country code set as there is no grid available. A generator will be added later so I probably have to take it into account. I simply want to be able to use both AC1 and AC2 out. One is for upstairs and the other downstairs.

ejrossouw asked
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4 Answers