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input current

Multiplus entering power assist unnecessarily; draining batteries

The power system (components listed here; all devices have the latest firmware as of this posting) I installed in my fifth wheel is entering power assist mode despite the AC input being less than the input current limit. For background, one goal of this system was to be able to run a pair (15 and 13.5 kBTU/hr) of air conditioners on 30A/120VAC single phase service, with the inverters/batteries supplementing the grid power for intermittent loads like a Keurig, microwave, etc. The trailer came with one air conditioner on L1 and the other on L2. Of course, when only single phase input is provided, the second inverter inverts from 12 VDC but its continuous output must of course be limited by the first inverter's charging capacity of 120A. After conversion losses this is inadequate to power the second AC without pulling from the batteries (side note for any Victron employees lurking: *please* implement a way for the second inverter in a split-phase system to accept AC input that's in-phase with the first inverter! This is obviously something that can be done in software and its absence is driving customers with RV applications out of their minds). To get around this problem I installed a 20A switch that allows me to switch the second air conditioner from L1 to L2. I thought that was clever.


But not really; the stubbornness of the Multiplus defeats my ingenuity. See pics below.

[image]

[image]


As you can see, it is drawing well below the input current limit from the grid, yet "assisting" and drawing down my batteries. The total draw is around 28-29A although it can't be seen in the pictures (but you can infer it from the "AC Loads").


Please help me figure out how to force the inverter to draw up to the input current limit before it goes into assist mode; I really can't stomach the thought that I paid ~$15k and put in dozens of hours of work to actually lose capability.


Edit: The system is plugged into a 30A 120/240VAC split-phase connection. Inside the rig I have a 50A breaker upstream of the Multis, and I cut the little metal link joining the two poles of the breaker so that I can switch L1 and L2 on/off separately. In the example above, L2 is cut off to simulate how the Multis behave when only given a 30A/120VAC input (the first inverter switches to grid input while the second simply inverts from the batteries, as I ranted about in bold above). It is connected through several long extension cords, hence the voltage drop. Nevertheless, there is sufficient input amperage available to power these loads from grid input alone (and it certainly should be pulling more than 23A when it has a 30A input current limit).


Here's a VRM link: https://vrm.victronenergy.com/installation/66058/share/6019a575

And here's a link to the RVMS file with the current inverter configuration: https://drive.google.com/file/d/1JUNAxmPHIBWKNB6Saglhysvo8FdTxRsx/view?usp=sharing


Thanks!

jersey-dirtbag asked
Lou Cetrangelo answered ·

3 Answers

Why Does Generator Power Drop When Load Applied?

I have a Quattro 24/5000. When I add an AC load, the Quattro drops the AC 1 In current (connected to a 4800 W generator). The inverter/batteries make up the difference. See attached screen shot.

Settings: 120V, 60hz, Power Assist = on; Boost Factor = 2.0, max; AC 1 input current limit = 15 amps. See screen shots. The only difference in conditions in these two screen shots is the AC load applied.

This is strange behavor and I am at a loss. Any ideas?

[image]


[image]

keit6473 asked
Alexandra commented ·

0 Answers

SmartShunt Input

My SmartShunt is installed on an RV and is monitoring two Battle Born GC2, LIFEPO4 batteries with solar controlled by a BlueSolar Charge Controller MPPT 150/35. The Output list shown on the main screen has Voltage, Current, etc. The Input only lists the "Starter Battery." Is this normal, or should the display show the solar, and, when appropriate, input from shore power?

kmrice asked
kmrice answered ·

2 Answers

AC Power Requirement - Victron Blue Smart IP65 24V 13 Amp Battery Charger

In order to maximise the output from a Victron Blue Smart IP65 24V 13 Amp Battery Charger, what AC input power is required @240v in watts ? The info is required so I can assess the size of generator required to run the charger remotely.

lurenut asked
lurenut commented ·

1 Answer

Why is the input current limit changing the PV Charger (DC Current) during feed in

Why is the input current limit changing the PV Charger (DC Current) during feed in, if I am using a number less than 7?


Setup:

Multiplus II 48/3000

3 x Pylontech US2000

SmartSolar 150/35 with 2.1kw PV

Venus GX

EM24

AC coupled PV with 10kw


joe2 asked
joe2 answered ·

3 Answers

Multiplus "Input current limit" not followed. AC input exceeds the limit given in the CCGX and on the VE config!!!

[image]

I have a Multiplus 24/5000 with a CCGX. Both the Multiplus and CCGX have an input current limit at 10 A (around 2300W). When the AC input is active the current goes way above the 10 A.

Any ideas?

[image]

Vangelis Beligiannis asked
Vangelis Beligiannis answered ·

2 Answers

Multiplus 2 48 5kW AC In and Out maximum load with public and battery?

Dear forum,

I am planning on connected a 3phase network but for ease i question about 1 phase.

What are the max load specifications (in kW) for Ac In and Ac Out 1 and 2?

Can my House load be more than 5kW (battery plus public) or is my total house load restricted to 5kW even if the public could be more than 5kW.

Or is it that my public connection to the multiplus has no restriction at all (if 100% public 0% battery) and therefore my houseload can be more than 5kW.

(Or question with 3 phase :

3x 5kW Multiplus = 15kW Peak Load

What IF my Output happens to need (shortterm or even longterm) 17 kW

Will I receive the missing 2kW from public? Are the Ac In and Ac Out even layed out for more than 15 peak kW?)

What is the right load setting or what even is possible.

I cant seek to find any 5kW exceeding limits in any datasheet

vicvic123 asked
Matthias Lange - DE commented ·

1 Answer

Input Current Limit MultiPlus-II

Hi all,

I am wondering if anyone knows what happens when I:

  • disable PowerAssist (it has to be disabled so the Input Current Limit can be lower than 3.9A for a Multi)
  • set the Input current limit of a MultiPlus to say 2A
  • switch on a 10A load on the AC-out

I'm looking into ways to dynamically adjust the power take from an external power source between "as low as possible (0A would be great, but 1A will do too)" to 20A.

Would the MultiPlus supply 8A from the batteries and 2A from it AC-in in my example above? Or would it trip with an overload?

Jan


jbakuwel asked
jbakuwel commented ·

2 Answers

No PV current

I am metering 4.5 amps on the incoming PV wires. 40.21 volts on the input side of the PV lugs. This is a Smartsolar 100/30.


With the bluetooth monitor it sees the voltage but 0.0 amps.


I've simplified the system so that I can diagnose it. I have


one 12v Renogy 100ah lithium battery

Two 100watt renogy mono panels wired in series for 24v nominal

Smartsolar 100/30 charge controller.


When I turn it on or make changes it will move into bulk for 2 or 3 flashes and then to absorption.


Any help?

davebrown asked
davebrown answered ·

2 Answers

What is the minimum Input Current Limit?

What is the minimum input current limit for Quattro?

Setting it on VEconfigure allows me to set it as low as I want. However, the input current limit won't go below 10.5 on the Colour Control.

It needs to be set lower as the customer only has a small generator. How do I do this?

mick-finch asked
jpasop (Victron Energy Staff) commented ·

1 Answer

Input current limit being exceeded - Multiplus

Hi,


I have a 48/5000 Multiplus 2 with a BT Smart dongle.


I have set the Max Input Current Limit to 10a via the BT dongle but when I plug the gen set in to top up the batteries it charges at Maximum current which exceeds the generators 3,700w running capacity.


[image]

88benjy88 asked
88benjy88 commented ·

1 Answer

Triping Inverter Quattro 10000VA

My Quattro 10000VA trips when I power on 48V battery through a 10A DC breaker. What could be the issue? How many Amperes should this inverter draw at no load?

gideon asked
gideon answered ·

2 Answers

BT dongle and Current sense! (for solar controllers)

[image]

Hi, I have a BMV702 and BT dongle that broadcast Current info to two solar controllers. One is a Smartsolar and the current signal is taken into account in the charging algorithm, no problem here. The second is a BlueSolar with a brand new BT dongle, it seems I can't get the Current signal from BMV. (see pic). Is that normal, is there anything to do to fix this? Thanks

fredericmora asked
fredericmora commented ·

2 Answers

Venus GX & SolarEdge SE7K + SE Energy Meter total energy consumption AC-loads wrong

Hi !

I'm currently building my energy storage (on grid) consisting of a Multi Plus II, generic battery and PV inverter from SolarEdge (SE7K) with the SE modus energy meter (SE-WND-3Y400-MB-K2).

At this stage ONLY the Venus GX is connected, the Multiplus II is still in its box ;-)

As written in the FAQ the Venus-GX was able to find the SE7K.

[image]

Now I'm able to see the production of the SE7K.

[image]


My problem is that concerning the total AC-consumption it equals the SE7K production. This is not true. During the night it shows 0W for the AC loads but the SolarEdge portal shows me that that there is consumption from the grid.


Day (with PV production)

[image]


Night (no PV production)

[image]


Does this mean I need to buy an additional energy meter (e.g. EM24) if i want to monitor the total AC power consumption that I'll be later able to feed only so much energy from the battery that my purchased energy will be zero?

As far as I can see from the SE portal the power taken from the grid is also available from the SE Modbus energy meter.

[image]


Help greatly apprechiated!


Dirk



deichel asked
hetslimmehuis answered ·

7 Answers

No current draw readings from BMV-702

I have done a re-install on a previous 12 volt setup in my Landcruiser. Prior to removing this setup the BMV-702 was functioning correctly.

Now after a re-install, the BMV-702 is working and connecting via the app to my phone but it is not reading any current draw when load is applied to the auxilary battery.

I have re-installed using the factory wiring diagram and checked it over, so it should be correctly wired.

If I turn the ignition on the app with begin reading current draw, but in large amounts.

I have reset factory settings, re-installed and updated the app with the latest firmware.

Can anyone please help.


knibbsy asked

0 Answers

Multiplus 12/3000 reste éteint

Bonsoir,

Aux bornes de l'entrée batterie un voltmètre indique bien 12 volts produits par des batteries neuves. Aucunes LED ne s’allume ni le "digital multi control"

Merci de me faire participer à votre savoir.

duplantier asked
Carrara Frederic answered ·

1 Answer

75/15 input voltage incorrect

Hi there. I have been running my 75/15 in my car for over 12months, I have a 250w 36v PV on the roof, and up until last week, it run perfectly, keeping my crank and AUX batteries fully charged. My monitoring system alerted me to the fact my battery (AUX) was almost flat, so I checked out the system and found the PV input was only reading 13v, it should be reading 36v or so. Further investigation just now, shows 36v at the panel, 36v at the cables into the 75/15 when they are unplugged, when they re connected however, it only reads the 13v which I assume to be battery voltage. I am 99.9% sure this PV input reading is always 36v-40v when its daylight, irrespective of that, my batteries went flat.

Anyone offer some advice on what could be wrong here? Should I factory reset my 75/15 or is there another option or something I am missing.


TIA

marleekreative asked
marleekreative answered ·

2 Answers

My cerbo gx does not show an ac input

[image]

[image]

Hi I have a cerbo gx and 4 et112. Meters connected to it and I set all them up having one set as grid meter one set as generator meter and 2 for 2 separate inverter outputs. However even after setting one of the meters as a grid meter it shows no ac input but only shows it as ac loads. Is there something wrong with my cerbo gx or will the et112 not show as ac input because I would have to have a victron inverter?

lsps219 asked
squarej answered ·

3 Answers

Random grid tripping, but ACin 1 Voltage still present...

Hi all


I have a very odd issue which has happened maybe 2 or 3 times in the last 4 months, today was the last.

What it looks like is the grid falls away for 0.15-0.3 seconds, when I review the data I can see the current going to zero but not the voltage. See the image below.

I can only assume the system is acting as it should, and that either the dip is just too small/ too quick to be picked up by the Quattro's monitoring, or the voltage sensitivity is set too high. South Africa is known for many things, one of them being an unreliable network, so I wouldn't be surprised if it was a voltage dip.


So I guess first and foremost has anyone else experienced anything similar?

And secondly, is there any way to verify exactly why the system started inverting?/ to what extent did the voltage dip?

[image]

[image]

Regards

Ewald

ewalderasmus asked
marekp edited ·

2 Answers

Plenty of voltage from panels, no current from panels. Load discharging from battery instead.

Two 100W panels in series. 30+ volts consistently all day, but never more than about 1/10th amp showing as being produced. Multi-meter touched to wires as they enter the controller (so I suppose in parallel with the controller) read between 3 and 4 amps.


When load hooked up to load terminals at 1A draw (a 2 bay 18650 battery charger set to 1A charge rate), I see the amp coming off the battery, not the panels. I never see any amperage coming in from the panels.

I suppose this might be naive of me, but I assumed that if I was drawing a load, that the panels would attempt to fill the need before the battery did? Battery is a 12V lithium ion pack, so don't be concerned about is reading 11.59V. It can go a lot lower than that before any harm done.

Might also be worth noting that I have the float voltage set at 11.5V and Absorption set at 12.4V. I know I don't really need to float a lithium battery, which is why I have it set so low. I have the load output settings at 12.25V for the "reconnect load, battery is charged enough" and 10.35V for the "disconnect load, battery is getting too low".

Nothing appears to be reversed for polarization, and this battery has sort or trickle charged itself each day (graphs show me 10-20Wh per day input) to maintain roughly 12V over time. I haven't really had a load on it before today, so no significant battery charging has been needed.

We also have been dealing with all the wildfire smoke for the last week or so. Today was the first blue sky day. So first day I expected to see some panel efficiency.

Screenshot below.


[image]


Screenshot of my app.



paul-neubert asked
paul-neubert commented ·

3 Answers

RS 48/6000 Data Sheet

Hello, is there an early version of data sheet for new RS 48/6000, it been a while in stock with no datad sheet & amanual. Thanks

momahmoud asked
Guy Stewart (Victron Community Manager) commented ·

3 Answers

Victron Color Control GX- Quattro Shore current limit

Hello together,

I would like to change the maximum input current of the Quattro 8000/24 with the Color Control Display. I set the value to 32A and after some days or sometimes weeks, this value is changing back to 100A and the shore Power fuse is tripped.

This behavior is reproducible. I have the same system on 5 different boats, all of them have the same problem. This is a very big problem because after a few days in the harbor, the fuse will tripped and the boat have no longer shore power.


Connected to the CCGX is:

-Quattro 24/8000 [VE.Bus] VE Config: AC2 Input (Shore power) set to 32.0A with enabled "remote has priority" AC1 Input (Generator) set to 57A with disabled "remote has priority"

-Skylla-i 24/100 (1+1) Charger [VE.Can]

-BMV-712 Smart Shunt [VE.direct]

-VE.Bus to NMEA2000 Interface device [VE.Bus port from CGX]


I am extremely grateful for any advice!

offshore asked
offshore answered ·

2 Answers

High input Amps ( input 1 inverter)

hoi,


iam having a problem here, i had / have a very high grid invoice even with my victron installation.

so i was checking my grid network,

and i came to this :


the input Amps of the victron is 3.27A amp and no value on the Color for grid,

i have on output value of 4.38A = that is correct.


so why is my system using that much input current ???


see pics for Amps

the input is a cable directly from the grid.


input :

[image]


output :

[image]

cables:

[image]


there is no feed in from solar that moment


firmware : color is beta : 2.60-30

firmware : quattro is : 469


if i check an external gridmeter (not the quattro) = stays the same

vrm = no reports of grid usage


Edit : ac pv inverter is on the output

And the input amp are always 3A - 3.60A

Grid setpoint : 10w

And that current i can see that all the way to my house, big fusebox ( fist input fuse of mu home)


[image]


Done with fluke meter ( rent from person):

[image]


thanks kristof


@mvader (Victron Energy)

Kristof G. asked
Paul B edited ·

1 Answer

Multiplus II 5KVA pass through power?

Good day all

I have a question for the more experienced members here.

I have a Multiplus II 5KVA with a Smartsolar 250/85 charge controller, 12 x CS350 watt panels and a 10kwh lithium bank.

The house is equipped with a gas geiser and stove.

Power consumption was measured with logging device for about a week and peaked at 4.9kw with an average of 3.4kw throughout.

My question is can I feed the main AC from the grid through the Multipus with the main DB box connected to AC output 1 ( no break ) on the Multi.

Given that I will setup the ESS system to keep batteries charged and only use battery during load shedding.

The aim is to gain as much savings possible from PV and not have the hassle of splitting loads between AC outputs on the Multi.

I hope this makes sense?


Your input will be greatly valued.

bergmans-trading-cc asked
Alexandra commented ·

2 Answers

Setting up Parallel Multiplus for a 50Amp RV all documents are very imprecise...

So a 50amp RV shore outlet is actually two 50amp connections for a total of 100amps right? So when I program my multiplus inverters, is my input current limit 100amps meaning I program 50amp or is it 50amp and I program 25amp? Or am I totally misthinking this because it mentions "per phase" and a parallel system is single phase so I should just set it to 100amp... or is that 50amp...


I'm following the following information from the Parallel and three phase VE.Bus systems document

The following settings need to be made in the master of each phase:

  • Inverter output voltage

  • Input current limits
    (the effective input current limit is the setted limit multiplied by the number of units per phase. For example, setting a 10A limit with VEConfigure in a system with two units per phase results on a 20A limit for that phase. Being able to set a different limit per phase allows for maximum configurability.


Also when I'm looking at the maximum charge current, if my total charge limit is 70amp I would set it to 35amp?


Woody asked
solardude commented ·

2 Answers

Multiplus 3000 Split Phase Voltage Issues

Hello,

I have two Multiplus 3000's in an RV split phase with 50amp shore power (two legs of 120v power in USA). The units are configured in split phase and are hooked up to a 12v lithium battery bank with 800 amp hours of power (8 batteries in parallel).


I am experiencing a weird issue, where one leg's input voltage from shore will drop down to ~100 volts and the other leg will increase to ~135 volts causing my surge protector to trip briefly then everything resets after 1-2 seconds and the cycle repeats. I've tested in multiple locations and this is occurring in multiple locations so i've ruled out the shore power actually being the issue (i think, open to suggestions but this has occurred in 10 locations. We also just replaced our surge guard transfer switch to check if that would fix or be the cause). The issue seems to occur extremely frequently (every 15 seconds) when running a 1500 watt or more load on either leg. We have tried both dynamic current limit and without and UPS function and without with no noticeable change. When the issue is occurring the units will switch from float to inverter and back in a fraction of a second I think because of unhealthy input voltage. We are running through the system checking for loose wires but don't expect to find anything but will double check.

Everything works fine on battery and when not connected to shore power.

I'm curious if anyone has ever seen this before and if it may be a firmware issue or a result of a split phase configuration issue? We are running the 430 firmware that came with the units and didn't want to upgrade without checking here first if anyone has seen this issue.

epm96 asked
optingoutofnormal commented ·

1 Answer

How to Limit DC-DC Charger Current on Orion-Tr Smart?

Hey Victron community!


First time posting here, so forgive me if I'm missing any formalities.


I recently bought a Victron Orion-Tr Smart DC-DC Charger Non-Isolated 12/12-30. We are planning to use the charger in a travel trailer with a custom 300ah battery bank. The problem is that we want to wait to upgrade the OEM positive wire from the tow vehicle's battery (it is currently a 10awg wire) to a much larger wire until after we start using the trailer. Per my research, we will need closer to a 2awg wire, which is much bigger and a pain to re-route from the tow vehicle, so hoping to kick the can down the road a little.


With that said, is there a way to limit either max current or max power output on these units? Or is the only way to limit it via limiting the voltage? Are there any tricks to artificially limit the current?


Thanks in advance!

dirtjackson asked
ronhanson01 answered ·

3 Answers

SmartSolar Maximum input current

Hello there, the smartsolar 100/30 datasheet says:

1a) If more PV power is connected, the controller will limitinput power

2) A PV array with a higher short circuit current may damage the controller

Am i the only to see a contradiction here ? Maybe 1a) holds for high voltage and current within limit (serial connection) ? My understanding of 2) is that several PV in parallel will damage the controller. Or maybe that's me begin stupid this morning ... Anyone cares to clarify ? thanks !


Roman Le Houelleur asked
klim8skeptic commented ·

9 Answers

Low Solar Power Input

I’m a newbie to solar power - go easy and don’t laugh too much. So I bought a kit for my van, rigged it up yesterday and my 110w panel was showing 80w in sunlight. Great. It went from bulk to absorption to float and battery then fully charged that day. No draw on battery, van is sitting on drive outside my house. Today same sunlight level but only showing 6w. Is this correct? Is it because the controller knows the battery state and only allows that much from the panel?

upercentenaryboy asked
Matthias Lange - DE answered ·

1 Answer

AC INPUT 2 VICTRON QUATTRO

Hello everybody,

I have a Victron Quattro 5kVA/120V setup with a MPPT 250/100 and lithium batteries BYD B-BOX PRO 10.0. AC INPUT 1 has mains electricity of the grid.

I want to use the AC INPUT 2 not with a convencional generator but with the output of a eolic system that is installed in the same place, with another battery bank. The inverter output of this system is: 8kW / 127V single-phase (máx output current 63A).

I didn't find any question here about a hybrid system (solar+eolic) like that. The Victron setup will be the same as with a generator in the AC INPUT 2?

Is there anything else to pay attention besides the configuration?


bruno-santos asked
Paul B edited ·

1 Answer

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