multigrid Image

multigrid

Fehler im Dashboard

Bei mir werden im Balkendiagramm (Dashboard) die PV Erzeugung und der Stromverbrauch nicht saldiert. Im CCGX stimmt alles. In der Erweiterten Ansicht (Systemgrid) wirds auch richtig saldiert angezeit.

z.B. Juni 2019 Stromverbrauch, mit Netzbezug.

[image]


Gleicher Zeitraum im Systemgrid, kein Netzbezug.

[image]


Das gleiche Spiel bei der Einspeisung, im Winter wenn nichts von der PV kommt, habe ich Einspeisung weil die Phasen nicht verrechnet werden.

Ich hatte damals Kontakt mit Victron Deutschland, hier hies es, es wäre ein Installations Fehler und ich solle mich an Service Team Döbeln wenden. Die hätten aber gerne eine 4 Stellige Summe gehabt, auch wenn sie das Problem nicht lösen können. Mittlerweile kenne ich jemand mit dem gleichen Problem, der die Anlage von Service Team Döbeln hat. Ok die bekommen das selbst nich richtig auf die Reihe.

In Holland hatte ich dann Kontakt mit Herrn Boonstra, er kannte das Problem mit dem Balkendiagramm und vertröstete mich. Das Problem sei bekannt und sie arbeiten dran.

Jetzt sind 2 Jahre vorbei, meine letzte Anfrage vor 14 Tagen ob es nun schon eine Lösung gibt, wurde nicht beantwortet. Kennt jemand einen fähigen Kontakt in Holland?


Gruß

Thomas

Stromsparer99 asked
stenis answered ·

9 Answers

Customize equalisation settings for batteries
Regarding equalisation of flooded lead acid batteries, taken from Victron manual:

This setting is intended for flooded tubular plate traction or OPzS batteries. During absorption the voltage limit increases to 2,83V/cell (34V for a 24V battery) once the charge current has tapered down to less than 10% of the set maximum current. Not adjustable with DIP switches. See ’tubular plate traction battery charge curve’ in VEConfigure.


I'm wondering if there will be an issue here. To equalise our batteries (to get in the 31 - 33v range as specified by manufacturer) equalisation charging current is usually around 50 - 55A, due to the size of our battery bank (1380AH). So I'm wondering if this will allow correct EQ charging. If it tries to equalise 10% of charger capacity (70A) being 7A it won't work. Or does it refer to 10% of battery max charge current, which is much higher than the 70 amps this inverter can do. Are EQ settings customisable or am I misinterpreting it?

Note that under all other circumstances 70a for charging is more than enough, its much more than they get from the sun the other 9 months of the year.


Specs from the battery manufacturer are as follows:

Equalisation current: 3.5% of C100 AH capacity (1380AH) gives us 48.3A. That sounds about right.

Should give voltage of 2.6 - 2.75 volts per cell (31.2 - 33v), thats about right, maybe at the lower end of the spectrum.

Interval: 20 days.

Duration: 2 hours.


They really do seem to need it at least once a month during winter, even with conservative DOD. I've attached documentation should you wish to view. Also note normal recharge maximum voltage should be 2.45v per cell, I believe that means absorption should be set to 29.4 volts. That was definitely the case with the PWM charge controller we inherited with the system.


So how to get multi to equilise correctly!

UPPERYV asked

0 Answers

Multiplus or Multigrid for off-grid

Hello, I had a question about Multiplus and Multigrid. I am building a small off-grid system with 4 solar panels off 300 watts each that will charge battery's using an MPPT charge controller. I also want a backup generator to charge the battery's if they get under a certain level, and I will be using an inverter to make 230VAC 50Hz from the battery bank. At least I am also using a wind turbine that will give me a peak of 600 watt.

So a short list of items.

- 6x Solar panel 300 watt

- Battery bank

- Multiplus or Multigrid?

- Inverter

- Backup generator


What will be the right choice? Multiplus or multigrid.

And is this a realistic setup? Or is there a more efficient way?

Mike Schoonen asked
Nick Wiggill edited ·

3 Answers

Feature request: Germany 70% feed in limitation of ESS to the grid

My system: Multigrid 48/3000/35-50 with Venus GX and two connected Pylontech US2000 Plus. A BlueSolar 150/35 is DC- connected to the Multigrid. My Fronius Primo 3.0-1 is AC- connected to the output 1 of the Multigrid. The gridmeter is an ET340.

Now i want to feed in the excess energy to the grid after loading the batteries to refinance my pv- system. If i want to get my feed in energy payed i have to register my system by an electrician to the energy supplier. There is a law in Germany called EEG: Only feed in 70% of all the generators maximum power output. The electrician have to set and confirm that the maximum power feed to grid is set to 70%.

Without this limitation to 70% on the entry point to grid you have to install a radio remote controller to govern down your system in four steps by the energy supplier in case of over- energy of the grid. This controller costs about 1100€ and monthly 5€. Last choice is to cut off all inverts to 70% of power generally.

Further information see: http://www.buzer.de/gesetz/11230/a188267.htm

The technical system and measuring devices are installed, available and working fine at the ESS. Other possibilities to limitate to 70% means an huge technical effort to the whole system and money or a loss of energy.

The Fronius and BlueSolar MPPT can be governed by the CCGX to zero feed in to the grid (works fine) but there is no possibility to govern it to a adjustable max. feed in to the grid.

I need a function to set the maximum power (50W steps) feeded to the grid by the ESS.
Priorities: 1 = self consumption; 2 = loading batteries; 3 = feed to grid with adjusted maximum power
This is an important function to use this system in Germany to feed in to the grid.

I don`t know the exact conditions of the network operators but password protection for the max. feed in value will be necessary.

Is Victron planning such a function?

moeterxl asked
Ossi commented ·

7 Answers

D.C. current in the external protective earthing conductor

I have read in some Victron manuals (MultiGrid and EcoMulti) the sentence:

"This product can cause a d.c. current in the external protective earthing conductor ".

Can you please give some technical information to understand why this happens?

Can it happen to more devices, such as MultiPlus?

Thank you!

Francisco Aroca asked
solguy answered ·

2 Answers

MultiGrid don't use MPPT when battery reached 100%

In my ESS-system a Fronius Symo 8.2 is at AC-in and a MPPT250/100 at AC-out. When DC feed-in is disabled and the battery has reached 100% no power comes from MPPT but all from the Fronius.

[image]


Only when the Fronius no longer supplies sufficient power does the MPPT switch back on. This is how I lose feed-in remuneration. Is it possible to prefer MPPT-power for critical loads?

MaHa asked
MaHa commented ·

1 Answer

MultiGrid 3000 - VE.Bus Error 11 (step 6)

Hello,

I have an ESS 3-phase installation with 6 MultiGrid 48/3000/35-50 (two on each phase).

The system runs fine except this famous relay test.

I tried almost everything to troubleshoot this error, but before I try to contact my vendor(s) for the Multis, maybe someone here has an idea.

First of all, the error happens with or without load at the Multis. Without load means that there is nothing connected to the ACout of the Multis.

If I disconnect the Grid from the Multis (ACin), the Multis disconnect Active(in) and Neutral(in).

Measuring now the impedance between Neutral(in) and Neutral(out) shows > 5M Ohm, which looks correct for me.

Measuring Neutral(in) against PE(GND) shows 0 Ohm, Neutral(out) against PE shows > 10M Ohm.

If I disconnect the PE (GND) from the Multis the relay test passes without error and everything runs smooth.

I got my first 3 Multis about a year ago, the others are from October last year (1) and from two weeks ago (2).

For the error details see the attached pictures.

It would be very helpful to know what is tested during 'step 6'.

Any help is very appreciated.

[image]

[image]

schwarzenbergf asked
Vicky edited ·

6 Answers

Parrallel Multiplus/Grid security switch linked to master cutoff switch in Home distribution unit

Hello,


I've been scowering documentation and community's about this but could not find a scenario that fit's mine.

I'm planning on running a Multiplus or Multigrid unit in parallel with the mains, to function primarily as UPS for 1 specific load group, utilizing surplus DC from the solar inverter and AC from the mains to keep the battery's charged.

In The Netherlands, it is obligatory to have your Home distribution unit wired in such a way that the whole power system can be turned of in 1 action with 1 hand. usually, this is done by placing a master cutoff switch in the lower right corner, marked red, that turns of all power in the building in case of work, fire, or other emergencies.

I can use an auxiliary contact or magnetic contact linked to the Main cutout switch to trip the ESS Safety security switch assistant so that it shuts down the AC part of the unit.

Is this also possible using the Remote ON/OFF input on the unit itself? I rather not rely on software-based triggers in case of emergency if at all possible of course.

How have other people solved this issue? I know it is kind of contradicting wanting to run it as a UPS to make sure you have power in case of an outage, but at the same time being able to completely cut off power to all loads and disabling the Victron Multi...

Any thoughts or links to reference materials in this?

svanderlaars asked

0 Answers

Spare part for multigrid - baseplate.

Hi

Does anyone know if I can obtain the multigrid baseplate as shown in red as a sparepart and how do I order it?

[image]

ejrossouw asked
ejrossouw commented ·

1 Answer

Multigrid II "Mains On" LED off

Good day, I have Multigrid II with Venus GX and grid meter running perfectly fine for just over a year and still running strong. This morning I have noticed that the "Mains On" LED on Multigrid panel is off while Venus GX UI shows that it is on. Because I think that it's very unlikely (although not impossible) for LED to break, I am wandering if there could be something more serious behind it.

Kind Regards

Slawek

Slawek asked

0 Answers

Multigrid - stop discharging battery based on external signal ?

I still want to stop my Multigrid from discharging the LG battery, when charging my car during the day. Firstly it is not efficient to use battery power to charge another battery, but main thing is to preserve battery energy for night time when PV isn't available, to the grid suppliers either. During daytime there is plenty of PV power fed in the grid, so I am OK to use this whilst during nighttime sources are different - not PV for sure.
So is there an input (sensor) I could use for that? E.g. stop discharging by applying a certain voltage somewhere, make a short or connect a switch or whatsoever. Txs for any help

Vicky asked
Vicky edited ·

4 Answers

How to avoid "Battery to Grid" ?

I pulled VRM kWh data to see results of the first full month Multigrid and PV Panels working.

PV Yield in total is 417kWh, looks OK.

However what I don't like is the ratio of Battery to consumer 62.6kWh vs. Battery to Grid 30.5kWh

Of course I don't want to use my expensive RESU battery to feed the grid.

How can I avoid this?

Txs

Grid Setpoint is 30W

Vicky asked
JohnC commented ·

5 Answers

Multigrid Mains and Inverter LED blinking

I just discovered my system draws 50% pwr consumption from grid although battery is 68%.
Main LED and Inverter LED are flashing, Bulk is on. First time this happens.

[image]

Vicky asked
Vicky answered ·

3 Answers

multigrid ground relay

Baxi ecoblue boiler tripping fault 432 earth fault?

Andrewjohnfrazier asked
Andrewjohnfrazier answered ·

2 Answers

MultiGrid: LEDs for Mains, Inverter and Absorption 'On' at the same time

Hello everyone,

I'm using 3 MultiGrid and Pylontech Battery without any load at the output. This setup has no particular purpose at this moment, but my task is to prepare a GUI for a communication between the Venus GX and a PC using Modbus. So I use ESS Mode 3. I'm frequently switching between ESS Keep Battery Charged Mode (to charge the battery when I'm away) and ESS External Control (to test and to run my Modbus GUI).

Both modes ran perfectly for about a month, which means I could charge and discharge the battery with energy from/to grid through Modbus communication. Until one day, on which the settings in MultiGrid might have been changed. Since that day, both modes don't work:

In ESS Mode 3, Venus GX doesn't react to the setpoint I sent, but data such as battery SOC can be read as usual. In Keep Battery Charged Mode, the battery is not charging, and most confusingly, these LEDs Mains On, Absorption and Inverter are on at the same time.

I've used Victron Toolkit App to understand this LED combination, but this combination is not available both in the app and the manual. How can these problems, or most importantly, the Keep Battery Charged problem could be solved?

Your help is highly appreciated. Thank you.

[image]


mohd.mohamad asked
ramassamy commented ·

4 Answers

ESS (AC DC coupled) "Feed-in excess solar charger power" not full potential

Hi

i running a ESS (MultiGrid 48/3000 FW459, VenusGX FW v2.31with EM24) with AC Coupled third party PV Inverters (via ET340 and ET112) and a Smart Solar 150/35 v1.39 and a BYD B-Box 5.0kWh. (DVCC enabled, SVS disable, Smartsolar has BMS controlled)

The DC Coupled PV system is oriented south and could be enlarged by approx 900 Wp, since currently only 1,8kWp is installed. Maximum charge power to battery is limited at 2000W fixed due to the 35 Amps - i know ;).

In the ESS Settings I enable " Feed-in excess solar charger power" but soon i discovered the the typical behavior of the system was to charge from the East oriented AC Coupled inverters, which means, the the battery is full, sincce there is enough excess. But the south orientated DC coupled PV System was dearted by over 50% due to battery being at SOC 100%, even with the enable option of "feedin excess DC Power". Over have of the production of the south oriented DC coupled PV is derated (see pic attached, redline is potential solar production).

[image]


To prove my hypotheses i changed the ESS Setpoint to activly discharge the battery into the grid, thus a lower SOC than 100% is realized. this enables the BMS controlled Smart Solar to use the full potential of the PV system. (previously 340W production goes up to 900W Production).

See my screenshots and notes

ESS Feed-in excess solar charger power - not full potenial.pdf


Conclusion:

I presume that the Mutligrid doesnt discharge/feedin as much power as the full potential of solar available on the DC side.

I would presume that the voltage Gap between SmartSolar and Multiplus isn't high enough for Multi to discharge the battery more but to keep it at 100% and though making it possible for the SmartSolar to feedin more of his potential solar power.


So propably i will not add any more Modules to the Smart Solar or install another SmartSolar, but install another PV Inverter AC coupled.


If anybody has the same Issue please let me know!

If anybody has an idea how to optimize the use of the DC coupled Solar to feed into the grid, please let me know! I thought already of an external PLC writing the ESS Setpoint into the Modbus register, to actively reduce the SOC during the daytime, to make more use of the DC coupled PV System.


THX

BR

Ossi

Ossi asked
Ossi answered ·

3 Answers

MultiGrid measures bogus power values

We have an installation where a MultiGrid measures/calculates bogus power values.

[image]


The powers to the left (grid, pv and battery) are all correct.
However the AC loads value is way off.

Strangely, the inverter measures negative power values on both ACin and ACout.
However, nothing is connected to ACout at all!

We have tried to "redetect system" as described in the FAQ, but that didn't help.

What could be the problem here?
Thank you
Ivo

[image]


[image]

ivo asked
Daniël Boekel (Victron Energy Staff) answered ·

1 Answer

Solar query to run small office - EasySolar Vs MulitGrid Vs other options

I have a small office with fairly low daily electricity use apart from the depths of winter where we might run a electric heater.

Basically just two desktop PCs, a laser printer, router, cordless phones, a few LED lights, kettle, occasional microwave use if want something warm for lunch, 8 hours a day Monday to Friday.

Its got a mono-pitched south facing roof, so plenty of useable space for panels.

The building is only rented, so don't want to spend a vast amount on some feed-in type setup with export meter selling the excess, I just want to try and make the majority of what I use, and at the same time save a bit on the electricity bill.

I am struggling with what option to go for, as want to try and get the biggest benefit from what I have to spend.

I am tempted to go for a SmartSolar 100/20 (on 48V) and going as close to the full 1160W as I can on the panels, 4x 12v 100Ah-ish batteries, and then use a Phoenix 800VA (on 48V) inverter to run all the low powered stuff, PC's, Phones, Lights, etc... and leave the Printer, Kettle, Microwave and Heater on the grid. And in the winter if I struggle for solar power I could move some or all of it back onto the grid.

Is the fact I will be using the power during daylight hours going to give the batteries a problem? As they are probably only going to get back up to float during the weekend when there is no drain for a couple of days.

Or is it one of those things where I just need to bite the bullet and do something, and if its not enough I will have to swap something out for something bigger, or add another MPPT controller at later date.

I really do like the idea of the EasySolar how its all in one box, but unless I spent serious money and went for the 3kVA one, the 1600VA (on 24V) doesn't really let me run much more PV than the 100/20 (on 48V) but obviously could pull from the grid automatically if there wasn't enough PV or Battery, rather than me having to manually plug stuff into another socket.

Or to really throw a spanner in the works, when I look at the example layouts the Multigrid seems ideal as has enough power to run everything through it, and I could run a surplus of panels on a normal Grid-Tie AC type inverter, but set the Multigrid not to export the excess, and it would use the battery bank to fill in the gaps in the solar, and would only fall back onto grid if there wasn't enough solar or battery.

Any ideas or advice is greatly appreciated.

avs_power asked
Partpilotuk answered ·

2 Answers

MPPT Peculiar Feedback Behaviour - 20% Energy loss

Good day,

I have a Victron 2x Multiplus 5000 paralleled with a set of East and West Facing panels. I have a total of 18*315W Panels East and 12x355W panels West. The East panels are on a 150/100 MPPT and the West panels on a 250/100 MPPT. The Multiplus Firmwares are on 2624459. The CCGX is on 2.33 and the MPPT's are on 1.42

I have 1 x ZBM2 from Redflow and I can feed back into the grid. My problem is that I have long suspected I'm not getting the full available yield from my system due to some throttling of the MPPT's.

I have played with the Grid reference point and I've now seen today that if I set the grid reference point to -2000W I have today actually managed to generate 20% more yield from my East MPPT. (Yesterday the 17th I generated 19.2 kWh and today over 24 kWH). Both mornings were sunny without clouds. Unfortunately it became cloudy in the afternoon and the West MPPT was not observed so I couldn't see the full impact on the total system in the afternoon.

I have attached the graph from the Portal here for the last 3 days and you can clearly see that when my West MPPT is starting to receive sunlight it is starting to throttle back the East MPPT. However, today when I put the grid reference point to -2000W at about 7:30am I almost had a clean PV distribution curve on my East MPPT.

[image]

I also have taken the last 7 day's hourly profile and plotted that onto each other and you can clearly see the massive difference that I've seen today.

[image]

And for the full system:

[image]

I honestly believe that for some reason ESS is not allowing the full potential of feedback to happen and really would appreciate if someone at Victron could investigate the cause of this. A loss of 20% is quite substantial and I dont' want to have to every day set my system manually into a negative grid reference point to get the max from my system.


Any thoughts on this issue?


Kind regards

Marius


jsmvanwyk asked
Phil Gavin commented ·

1 Answer

Multigrid not running on batteries..?

My customer's system comprises:
24/3000 Multigrid - latest firmware update installed
Aurora PV Inverter with array
24V/200Ah NiFe battery set.
Standard Grid connection
Household loads

They want the system to charge the batteries during the day from the solar power and discharge at night. It's not discharging from the batteries at night.

I've checked the wiring and it all looks right to me. He tells me it is as per a Victron specification.

The Multi sees the batteries and charges from the grid and/or the PV, but is not discharging overnight.

I've flashed the firmware to latest version (1949159) reset to factory, and programmed the parameters to suit the NiFe batteries but it won't discharge them after PV input drops off in the evening.

What could be wrong?

Diamond asked
Diamond answered ·

2 Answers

Does Enphase micro inverters play nice with frequency shifting from a multi?

Hi,


I can’t seem to find something that says if the Enphase micro inverters play nice with the frequency shifting from the multi


My solar system is AC coupled and I have a multi 3000, upgraded to Firmware 431.


My array is 3500w big but because of odd angles I never see over 3090w so I am not to worried about the 1:1 rule


Thanks

dewitpj asked
Phil Gavin edited ·

4 Answers

Multigrid not started after switched on

Hello,

My system consists of:

3 Multigrid 48/3000/35
1 Color Control GX
6 Pylontech US2000 Plus batteries

The Multigrid are installed for three-phase system out of the AC-OUT port.

I have followed the instructions from this documentation until including step 3:
https://www.victronenergy.com/live/battery_compatibility:pylontech_phantom

I want to continue with the configuration (step 4), but all three Multigrid did not start (i.e. none of the LEDs blink) after I switched them on. Note that a grid voltage of 230V can be measured at the AC-IN ports of the Multigrid.

What is causing this problem and how could it be solved? I would appreciate any help!

Thank you very much.

mohdisa asked
mohdisa answered ·

1 Answer

Automatic Transfer Switch, Uninterrupted power supply

I want to know the Transfer time it takes for the Multiplus or Quattro to provide an uninterrupted AC power (UPS function)?

Please note that my system, consists of the AC grid, batteries .
and in another system it consists of the AC grid, gen-set and batteries.

It's not mentioned in the Data sheets, although it's mentioned in the Website, as follows:


Two AC Inputs & two AC Outputs

The Quattro can be connected to two independent AC sources, for example shore-side power and a generator, or two generators. The Quattro will automatically connect to the active source. The main output has no-break functionality. In the event of a grid failure, or shore or generator power being disconnected, the Quattro takes over the supply to the connected loads. This happens so fast (less than 20 milliseconds) that computers and other electronic equipment will continue to operate without disruption. The second output is live only when AC is available on one of the inputs of the Quattro. Loads that should not discharge the battery, such as air-conditioning or a water heater can be connected to this output.



Uninterrupted AC power (UPS function)

In the event of a grid failure, or when shore or generator power is disconnected, the inverter within the Multi is automatically activated and takes over the supply to the connected loads. This happens so fast (less than 20 milliseconds) that computers and other electronic equipment will continue to operate without disruption.


I want to make sure of such information since its not mentioned in the data sheet.

selim.ah asked
ben answered ·

1 Answer

Multigrid 24/3000 back up system.

Hello,

A Victron Multigrid 24/3000 is used as a grid back up.
A 30mA differential relay is used at its output.
The relay trips with no obvious reason.

a) Whenever the unit switched from inverter back to mains on (i.e. when grid exists again)
After this tripping the relay is armed to operation and works normally but on (b) below.

b)for no reason and at irregular intervals. The relay if armed does not trip again but after some random hour.

Alexis Kalogerakis asked
Alexis Kalogerakis answered ·

2 Answers

Type B Residual Current Device

Wich Victron devices need a type B RCD?

I have read many updated manuals from your web and there might be some contradictions.

In devices such as Quattro, Multiplus and Multiplus II there is nothing about type A or B RCDs, only the sentence:

"An earth leakage circuit breaker and a fuse or circuit breaker rated to support the expected load must be included in series with the output".

While in MultiGrid and EcoMulti there is the sentence:

"This product can cause a d.c. current in the external protective earthing conductor. Where a residual current-operated protective (RCD) or monitoring (RCM) device is used for protection in a case of direct or indirect contact, only an RCD or RCM of Type B is allowed on the supply side of this product".

Thank you!

Francisco Aroca asked
Anil Ghatikar commented ·

4 Answers

Low power of MultiGrid II 48/3000 in ESS system

ESS assistant is used in optimized mode. Grid shall be used when load exceeds nominal output-power of the MultiGrid.
In settings/ess inverter limit power is set to 2400 W ( nominal load of MultiGrid II 48/3000), but grid is already used when load exceeds 2000 W
When inverter limit power for example is set to 1000W, system works fine. Grid is used when load exceeds 1000W.
Why is the power limited at 2000W ?



chrisb asked
Boekel commented ·

2 Answers

MEN Links on the AC output of Multigrid 48V 3000

@Guy Stewart (Victron Energy Staff) I recently installed 3 x Multigrid 48V 3000's in parallel on a single phase installation feeding 2 x sub-mains on the AC output to a separate house and shed each with a sub-board and MEN link. The system is coming up with Error 11 due to these N-E connections and the only solution offered by Victron so far is to replace the 3 x Multigrids with 3 x Multipluses and then install special firmware to disable the N-E checks on initial start-up. I have asked if firmware can be provided to solve the problem with the existing Multigrids with the answer being "no, the Multigrid's cannot be modified". It is not practical to install separate earths to these sub-boards due to difficulty and length, is there another known solution before removing and replacing the Multigrids with Multipluses?

Wesley Corbet asked
Iain Parke answered ·

2 Answers

Save critical loads when Multi fails

As my Multigrid didn't come back after a power outage (Error 11), the critical loads (fridge & heating) didn't come back on-line either. :o(

To avoid this in the future I do see two options

1. connect the critical loads to the grid an forget the UPS function

or

2. monitor grid down and grid recover and check if ACout1 is back after grid recover. In case ACout1 remains off, switch critical loads from ACout1 to Grid

Before I start developing...did anybody already create such a simple watch dog ?

Vicky asked
Vicky commented ·

1 Answer

DVCC limiting charging current - Multigrid, Venus, MPPT, Fronius and Pylontech

I`ve got an problem with DVCC on while charging the batteries. My system: Multigrid 48/3000/35-50 with Venus GX and two connected Pylontech US2000 Plus. A BlueSolar 150/35 is DC- connected to the Multigrid. My Fronius Primo 3.0-1 is AC- connected to the output 1 of the Multigrid. The gridmeter is an ET340. The system work fine. But if i activate DVCC the charging current will slow down to about 20A and the excess of energy is load to the grid. If i deactivate DVCC the full energy (about 30A) is load to the batteries. I want to load all the energy to the batteries. All firmware is up to date. Whats the problem?

moeterxl asked
moeterxl answered ·

4 Answers

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