MultiPlus-II grid setpoint without external grid meter

I have a MultiPlus-II that is tied to the AC grid. I recently connected it to a GX (on a Raspberry Pi 3). I already changed the configuration from Virtual Switch to the ESS Assistant. I have no grid metering connected to the GX or to the MultiPlus-II. For the moment, I want to control it manually.

Even though the grid setpoint is set to -800W to feed 800W back into the grid, it doesn't seem to have any effect and the MultiPlus-II stays in Passthru mode.

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I have searched this forum and found one similar post (https://community.victronenergy.com/questions/48014/multiplus-ii-gx-stays-in-passthru-state.html) that ended up to be a bug/singularity.

Mine was cause because of a GX misconfiguration.

See https://www.victronenergy.com/media/pg/Energy_Storage_System/en/faq.html Q4

In ESS, the conditions for the VE.Bus system to be in pass-through (ve.bus state: passthru) are:

  1. When the GX device is no longer receiving data from the grid meter. Note that this is only for systems that are configured to have an external grid meter. See the Settings → ESS → Control without grid-meter setting.

  2. ...

So the solution seems to be simple... Simply adjust the settings.

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However, there is no "without grid-meter" option in Settings > ESS > Grid metering

[image]

The "without grid-meter" option is in fact the inverter/charger option. This is quite confusing. After setting it to Inverter/Charger, the Grid setpoint works as intended.

[image]

So far so good. But as you can see in the last screenshot, the "critical loads" box disappeared.

After I changed the grid metering setting back to external meter, I got the critical loads box back for a short time while it was also feeding energy into the grid.

[image]

But then the feed in stopped. Because off course, the setting is wrong. And the register has not been written for 60 seconds.

[image]

Correcting the setting feeds energy into the grid again, but then I loose my "critical loads" box again.

[image]

I have been switching back and forth a couple of times:

- if I set it to External meter, the critical loads box shows, but grid setpoint does not work

- if I set it to Inverter/Charger, the critical loads box is hidden, but grid setpoint does work.

This looks like a (reproducable) bug in the interface to me. Can someone confirm? Or point out what I'm missing?


P.S.: in case someone notices in the screenshots, I changed the Grid setpoint from -800W to -200W during the troubleshooting.

bjorn-n asked
maciek-haranczyk commented ·

3 Answers

LiFePo4 2s2p midpoints

Hi,

Can anyone tell me the reason that victron state not to connect the midpoints in a 2s2p Bank (to make 2p2s)?

Im having trouble getting my bank in balance, and i think temporarily connecting the midpoints for a cycle or two would help to bring them in line with each other.

Any feedback greatly appreciated =)


*edit - of course i would fuse this connection, rather blow a small fuse than have fireworks!

bones83 asked
bones83 commented ·

6 Answers

ET112 Volts and Amps

My small system is 200amp batteries, CERBO GX, SmartSolar MPPT 100/30, BMV-712 with temp, and an ET112 Energy Monitor. Everything working great, connected to VRM with a Verizon MiFi. I can see the ET112 as wattage on VRM. Maybe not where I would like on VRM but can see it.

Is there a way to show Volts and Amps from ET112? Thank you.

shicks3 asked

0 Answers

Load output not working as expected (75/15)

My motorhome install came from a local Victron supplier. They advised that the load output could be connected to the vehicle starter battery to stop it going flat when not used for long periods.

The goal was, leisure batteries charged, plenty of sun, a little bit of power would also go to the start battery. Great, I thought, However, I'm not sure the load output is doing anything meaningful.

The jumper has been removed and user algorthim defined. The load output only switches on when the leisure batteries reach 13.7v. There's been plenty of sunlight lately and the batteries are in float at 13.8v, the load output is ON but the reading is 0.0A. Over a 4 day period, I've seen it flick to 0.1A for a fraction of a section a few times, and then 0.0. It's almost always 0.0.

Starter battery voltage is being monitored with a smartshunt, and the voltage is very slowly dropping.

The load output switches on and off as expected. it just doesn't seem to be giving any juice!

pablo79 asked
pablo79 answered ·

2 Answers

VRM Numbers not adding up over 24 hours

[image]

I’ve written my own custom controller to set the grid set point based on spot price here in New Zealand which has been through the roof recently because of a gas shortage.


ive been reviewing the Victron aggregated logs and have always assumed that grid input + production ~= grid export plus consumption although this isn’t the case. I was wondering if someone could explain where the remaining kWh go? I know inverters are 95% efficient but that doesn’t account from missing kWh in my mind anyway.

In the first photo you can see around 4-5kw is missing from live view based on discharge amount of battery and pv production

In the second photo you can see that this seems to also be the case in data aggregated over the last 24 hours. I consumed or exported 193kwh but produced or imported 246kwh.

Thanks for your help!

[image]

mike-casey asked
mike-casey commented ·

2 Answers

Grid SetPoint and SoC

Hey guys,

Very Quick quesiton. If I set grid setpoint as a -ve to discharge battery when spot price is high, can I rely on the SoC setting to stop discharging when the batteries get too low?

What one takes precidence?

Mike

mike-casey asked
mike-casey commented ·

1 Answer

et112 energy meter with 120v

im in US so i have 120/240v power, I have a grid tied 48v quattro system to provide backup to critical loads + solar array which produces a lot more power than my critical loads need, i wanted to add et112 energy meter at my grid input and push power back to other loads but not the grid (seems pretty standard setup) so i ordered et112 + usb serial cable, it got here and on et112 it says 230v not 120v, manual states av0 part number is for 230v and av1 part number is for 120v, problem is that i cannot find this av1 part numebr anywhere, victron only shows one model number and doesnt specify voltage just amperage, so will 230v part number work on 120v system or do i need some special part? anyone can help i would appreciate it

thanks


AJ

audreez asked
squarej answered ·

2 Answers

Low Solar Amp Conversion from Watts?

I'm chasing another problem with this system, that I haven't been able to pin down. I'll give you a short amount of background, in case it's relevant.

The system originally was 2 quattros in parallel, 10 Victron Lithium batteries (300ah) and 8 100/30 mppts. I share this, because I observed in the previous setup before anything was removed...nearly 60amps charging and the owner at that time stated that it would get to 100 on a bright sunny day with no clouds.


As part of buying this boat, the previous owner took one of the quattros and 5 of the batteries. I have replaced that quattro since, so now the setup is

2 quattros in parallel (5000/12/220)

5 x 300ah Victron Lithium

8 mppts connecting about 3k in solar panels.


Here's where the issue comes in. In the middle of the day, when the sun is directly overhead, and I'm generating 1600 watts of soloar (as measured by the quattro on the cerbo screen) - I will barely reach 20amps charging, usually less. My idle draw is about 15 to 20 amps, but its always been that, so observing 60, means the production at that point was 75 to 80. Right now I'd expect 133 amps raw, before any loss or conversion or vodoo that happens between components. I think it's reasonable to guess while generating 1600 watts of solar, that I should see 100 amps (mins 15 to 20 idle)....Am I incorrect?


I know that the mppts will downscale, I've appropriatly measured the battery SOC so they should bulk, measured the temp so there are no temp issues (unless there's some settings that arent correct), and I have access to all the MPPT's through the VRM for their settings if those need tracked down.


I also know how complicated all the settings can be between MPPT's, quattros, batteries...etc. So I'm looking for some help tracking it down. I can been the hammer, just need the person to wield the tool and get me there, or tell me it's working as intended.

Thanks in advance, I love this community and how everyone helps.

P.S - If there's a victron "expert" in the area of Caribbean Martinique (or you are available to fly in) I would absolutely love to talk to you.


Bryan asked
seb71 edited ·

2 Answers

How to change the data instance for BMV-712 in NMEA2000?
Is it possible to change the data instance for BMW-712 using the Yacht Devices Can Log Viewer or do i have to use root menu and command lines on Cerbo gx?


Jonny Sollid asked
Jonny Sollid commented ·

7 Answers

How to display battery voltage from two BMV-700s on Raymarine Axiom 7?

I have two BMV-700s hooked up via VE.direct to a Cerbo GX. I have the Cerbo GX integrated with a Raymarine Axiom 7 via the network port AND VE.can. I can access both BMV-700s via the Victron App on the Axiom. I can get only one of the BMV-700s to populate the Battery 1 data box on the Axiom. I can't get either BMV-700 to populate the Battery 2 data box on the Axiom. I read the instructions and can change the data instance of each BMV-700, but I can't change the instance to 1. I can change the instance to 2,3,9, or 0, but I can't change it to 1. I used Actisence NMEA Reader and a NGT-1 to change data instances. All equipment and software has been updated to the latest rev.

merkemarine asked
Jonny Sollid commented ·

1 Answer

Has something changed with my grid export?

Bonjour mon système fonctionne depuis 3 ans . Les mises à jour sont automatique mais depuis un certain temps, je constate des changements dans le fonctionnements du système . Une mise à jour a t'elle besoin d'une intervention manuel par la suite sur les équipements ?

Je ne comprend pas bien la lecteur qui pourrais m'aider ?

Injection alors que les consommateurs sont couverts et la production PV inférieure . La lecture devrait être en positif sur le réseau pas en négatif meme avec de gros consommateur ?

Merci de vos lumières.


Hello my system has been working for 3 years. The updates are automatic but for some time, I have noticed changes in the functioning of the system. Does an update need manual intervention later on the equipment?

I do not understand the reader well who could help me?

Injection while consumers are covered and PV production is lower. The reading should be positive on the network not negative even with heavy consumers?

Thank you for your insight.

florian17000 asked
florian17000 commented ·

2 Answers

VRM Dash Board View

Hello,

I really like the dash board. I added a new shunt to the system to monitor my wind generator output. This has not turned up on the dash board, which has surprised me.

Does anyone know if there is any way top control which devices do appear on the dash board? If not could a feature be requested to allow the user to select which battery devices/shunts do get displayed.

[image]

bathnm asked
bathnm answered ·

2 Answers

LOM causing problem - solution cost € 500 - feel left in the dark by Victron

Hi Victron team,

It turns out, after days of testing, that I have a LOM problem. Given the fact that I have power in the house (40 amps grid connection) and the swimming pool is still on and my Fronius inverter doesn't have this problem nor my neighbors SMA it puzzles me why Victron can't solve this. I know the technical background of the LOM, but it clearly doesn't work all the time. So why do I need to buy a € 500,- Zhiel to fix a problem that Victron has? Given the fact you refer to the LOM problems in the ESS manual, a video explaining more about it and a white paper, it must happen more often than extremely rare like mister Vader is saying in the whitepaper about LOM.

I would expect therefore more information and also a suggestion for a solution that doesn't cost 1/2 a Multiplus-II. Sadly I can't find that information nor any information about how to connect a Mains Monitoring relay. This disappoint me very much. I feel left in the dark while there are main protection relays on the market for € 50,-.

Hopefully there is more information available and is Victron willing to help finding a more affordable solution than a Zhiel? Can you please share at least the information you have?

Other question: the fact it's a new installation and LOM isn't working this means it are faulty products. Am I allowed to send everything back to the dealer and get a full refund? I just want to know if this is an option I have?

Robert

robertg66 asked
Daniël Boekel (Victron Energy Staff) commented ·

7 Answers

Suitable charger

Hi.

I'm looking for a suitable charger for 4 110AH batteries (Victron BAT412101084) which are in a 24V group (220AH).
I also have a SmartSolar MPPT 75|15 connected to batteries.
The batteries are located in a boat as service batteries.
From time to time the batteries are also charged by a diesel engine via a battery isolator.

Can anyone recommend a suitable Victron charger?

szwuntex asked
szwuntex commented ·

2 Answers

Cerbo wont powerup

Powered up a new Cerbo. WiFi light flashed for about ten seconds then nothing. Checked fuse and polarity any other suggestions?

kiap asked
Bryan answered ·

1 Answer

Quattro Stuck in Passthru

Hello, I’m hoping someone can help with my issue.

I have a 220/12/5000 Pair of Quattro’s running in Parallel. For the most part everything is operating as it should, and I don’t notice anything unusual. They’ve been in this configuration about 7 months now. It’s a marine configuration, so I’m not running anything related to ESS or anything requiring anti-islanding. The other questions / solutions I’ve seen with this issue all seem related to that system.

The issue has risen for a 3rd time now, and I’m really unsure how to proceed. At some point, the battery will get low enough that the inverter will shut off. Somewhere between 50 and 60% state of charge. This usually happens when theres an unexpected loss of power in the grid shore power, or generator breaker pops and we are unaware.

At this point, restoring grid power or generator power will put the quattros in passthru mode. The batteries will not charge. I usually have to wait until the MPPT’s charge the batteries back up enough to kick them out of the danger zone before I can get it back to normal.

Yesterday when this happened, I was able to remove the BMS assistant, and the BMS from the system and get it to kick into charging mode again...do I have an overall BMS problem? If I do, it will be the 3rd BMS in 7 months.


Thank you in advance for your help.



Bryan asked
Bryan answered ·

3 Answers

SmartSolar 100/20 Load Momentarily Disconnecting.

I have the above solar controller. My caravan is connected to the load, the most I've had on the load is 10amps, so it's not that causing the disconnection BUT.......

When the sun fades and the input from the PV drops, the charger switches off, at this point the load is switched of for a split second and reconnected, it does this every day.

I've just downloaded the latest App for Android, and I've installed the latest firmware for the 100/20.

The problem I have is, when the disconnection/connection occurs, all my lights in my RV come on, so if I'm not there, I'll end up with flat batteries, and if I have to disconnect my battery when I'm away, what's the point of having solar as it won't charge a disconnected battery.

I live in my caravan, so I'm here most nights, to sort the problem out, I thought I was Upgrading when I put this controller in as I only had a PWM controller, wired the same, but this controller seems to be a step back for me.

Can someone from Victron please sort this out for me?

Regards,

Paddy

paddy1969 asked
paddy1969 answered ·

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

How to reset the bluetooth PIN to connect with Victron Smart BatteryProtect 12/24V-100A

Hi all,
I've searched all questions but haven't found an answer yet:

Two years ago I've purchased a Victron Smart BatteryProtect for my RV and I seem to have changed the default PIN (000000, six zeros) to connect my iPhone via bluetooth with the BatteryProtect. Now I bought a new iPhone and can't remember the PIN I've changed it to and can thus no longer connect to the device.

How can I reset that code? I've checked this page (https://www.victronenergy.com/live/victronconnect:start#bluetooth_smart_-_resetting_the_pin_code), but the BatteryProtect is not mentioned.
Thanks for your help!

Gaston

gaston-buiten asked
Thiemo van Engelen (Victron Energy staff) answered ·

1 Answer

5KVA Multiplus inverter transfer to mains when Battery alarms at LV

How can a Multiplus 5kva inverter feeding a off grid house Essential load be configured to switch the load back to mains power when the battery alarms at its LV setting .. It appears I need a separate AC transfer sw controlled by the Inverter interface . Any advice would be appreciated or where I can find any info on this ? The manual does not say anything about this mode , (just the UPS (no break mode ). which I do not want !

caprod asked
caprod commented ·

2 Answers

Multiplus 24/3000 violates input current limit settings

How do I prevent the MP from exceeding the input current limit settings?

[image]

Stephen Otto asked
88benjy88 answered ·

1 Answer

ESS Ladeleistung begrenzen

Ich möchte meine vier US2000 Pylontech schonend aufladen (30A reichen) und die Ladeleistung begrenzen.

Aktuell wird je nach SoC mit bis zu 90 Ampere geladen und der Akku ist schon Mittag wieder voll.

Die Einstellung DVCC "Maximum charge current" wird ingnoriert.

Wenn ich die Leistung vom MPPT 250/100 in dem Menü vom Laderegler begrenze funtioniert das allerdings wird dort die komplette Leistung reduziert. Also auch die Überschusseinspeisung entsprechend begrenzt.

Was verwende ich? 3x5 335 Wp Trina, MPPT 250/100, Multiplus II 3000/35 und der Cerbo GX

rossix asked
michaelvausr commented ·

2 Answers

Audible Alarm on Cerbo GX / Touch is very faint

Any way to turn up the audible alarm on the cerbogx/Touch 50? Its so faint I can't hear it. My wife, who has amazing hearing, can barely hear it.

atarlecky asked
Daniël Boekel (Victron Energy Staff) commented ·

2 Answers

Possible to make Venus GX Remote Console display custom like add dark mode?

I sail on a sailboat around the world and I have a Venus GX connected to an old iPhone velcro'ed on my Electric panel and always on. During night sails that white background on the Remote Console disturbs my night vision.

Is there a way for Victron to introduce a simple "Night mode" with a black background? Or, since this is an Open Source software, is there a kind programmer that could make this feature available in the next release?


[image]

Francesco Pugliano asked
JohnC answered ·

3 Answers

ESS with grid parallel PV Inverter

Dear community, good morning


I have a Multiplus II GX Inverter charger configured with ESS asistant under Optimized mode.

Battery bank 48V 4 x 12V LipoFe Smart Batteries from Victron with VE.BUS-BMS.

The installation has an ET112 grid meter monitoring both Multi and load power.

Grid Set Point is set to 50W to avoid feed in the grid.

Currently I have set Schedule Charging to:

Schedule 1: Everyday Starts at 0:00 / Duration 7:00hs

Schedule 2: Everyday Starts at 7:00 / Duration 11:00hs Stop on SoC 50%


This will charge the batteries during off peak tariff from 0:00 to 7:00 am, Prevent any discharge from 11:00hs to 18:00hs and use all accumulated power during the night.

I am adding a Fronius Primo grid tie inverter with (Fronius Zero feed will be enabled).

I will change my Schedule 1 and add Stop on SoC 70% so I can take advantage of the grid tie inverter to charge the batteries.


My question is how will the system behave since from 11:00hs to 18:00hs Schedule 2 two will be running?. Will it override charge from the grid from Shcedule 2 and charge from the excess in PV Inverter?. I want to take advantage of the solar excess but prevent from charging from the grid during that time.


Thanks for your support.

Best regards,


Javier Moran asked
magpern answered ·

1 Answer

which firmware should I update to

We have 3 24v 5000 120amp MultiPlus Victron units working with one master and two slaves

One unit is younger than the other two (it’s the one acting as the master)

We wanted to update to be able to use the VE connect windows application or the app on a I pad as at present the maretron state of charge does not work (it never has on any of the FPB boats).

So we were hoping to put VE connect or the BMV software on the helm computer.

So I downloaded the original configuration of the 3 units and saved it.

Then I updated each units firmware:

Codes on processors:

2614413 Master (went to the professional Victron site and downloaded unit multiplus 400 folder 2614481.vff) this seems to be working on this running as a single unit.


2614155 Slave downloaded under the 100 folder 2614159.vff

2614155 Slave as above

After installing this firmware I tried to reload the configuration file (the original one which makes the units talk with each other but the software complained that its could not see the slaves.

The slaves do not seem to be working.


? have I up loaded the wrong firmware? Which firmware should I upload?


peter-watson asked
wkirby answered ·

1 Answer

Raymarine integration in nk2 network with several Victron devices that send battery data.

I have several devices in nk2 networks that send battery data such as Multiplus, MPPT, rec-bms and smart shunnt. Without modifications, only two batteries will appear on Raymarine instruments. (I have 3 battery banks) Based on testing to display battery data correctly on Raymarine, we have used a programmable interface and changed "device instance" and "data instance" to see how data is presented on Raymarine display. Changing the device instance as described in the Victron GX manual chapter 11.5.4 does not change anything on Raymarine instruments! (Tried this from the venus os menu as well) When we change the data instance, the battery is presented correctly. This was also the case on thread eg posted about 1 year ago about data instance. The question is why device instance is made available in menu on Venus os and manual describe that change of data instance is not recommended?

Anyone have experiences to share that can confirm this? Do other manufacturers use device instance for numbering batteries?

Jonny Sollid asked
sunnycoastgreg commented ·

4 Answers

Multi charge cutting out

Hi my multiplus (old 24 3000 70) with analogue control panel charges my Lifepo4 batteries fine up to around 8amps of shore power (45amps @ 27.3v). Anything above that and it cuts out, charges or a few second and cuts out again. The result is I can't charge my Lifepo4 battery past about 26.9v resting voltage. Has anyone heard of this happening?


damjeff asked

0 Answers

Interlocking AC-Out2 with AC-In possible?

Hello,

I'm using general flag to ignore AC and some other assistants. I'm wondering if it is possible to switch AC-Out2 off BEFORE AC-In comes available and on again AFTER AC-In gets cut off.

I want to use a Fronius which isn't allowed to be connected to the grid

Thank you!

kind regards,

porcini

porcini asked

0 Answers

SmartSolar 75/15 and 60W panel

I was going to purchase a Victron SmartSolar MPPT 75/15 for my 60W (3,6 A) panel, but the retailer says the panel is too weak for this controller and that the combination won’t work together. He says the panel should be 80W or 100W. Is this true?

mths asked
mths answered ·

6 Answers