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DVCC

DVCC Limit charge current not working with grid feed in enabled

My System:

ESS with:
3x Multiplus II 48/5000
2x MPPT 250/100
1x Fronius Symo 15 on AC out
8x Pylontech US3000
Cerbo GX

I have a problem with the DVCC feature "limit charge current". I have set the max charge current in DVCC to 60A.
If i enable grid feed-in (AC & DC) the system ignors the max charge current and charges up to the max current of the pylontech battery 296A.
With grid feed-in disabled everything works as expected, the system limits the charge current to 60A.

Is this normal? Am i missing something?



Nico Bayer asked
Daniël Boekel (Victron Energy Staff) commented ·

2 Answers

DVCC not compensating for inverter

DVCC is limiting charge current according to settings however it does not compensate for the consumption of a Smart Phoenix Inverter 24V 2000VA 230V. I've installed an 230V electric boiler and was hoping to get hot showers when the sun is abundant without overcharging the AGM batteries.

Firmware is up to date, how can I troubleshoot this DVCC related issue? Venus OS v2.66 is running on a Raspberry Pi.

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Both MPPT's are externally controlled according to the remote console and part of a VE.Smart network;

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DVCC settings;

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pruik asked
pruik answered ·

2 Answers

Pylontech High voltage: 53.96V when DVCC set to limit at 52V...

Good day!

I have an existing Pylontech installation that suddenly started pushing voltages too high.

The only change was ESS set from "Keep batts charged" to "Optimized with battlife"

By returning it to "Keep batts charged" does not help

The errors then started. It seems to be the MPPT not following the set voltages.

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All settings were confirmed with this guide: https://www.victronenergy.com/live/battery_compatibility:pylontech_phantom

System details:

  • Venus GX
  • Quattro 48/8000/110-2x100 rev2
  • SmartSolar Charger MPPT 250/100 rev2
  • 2x Pylontech US3000B
  • 3x Pylontech US3000C
  • All firmwares updated to latest when errors started - did not help.

Venus GX settings

[image]

(Charge voltage was set here to 52V only as a test, it did not help)


Quattro settings:

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MPPT Settings:

[image]


Any assistance ill greatly be appreciated!

Regards

goose asked
goose commented ·

3 Answers

DVCC limit charge current does not work
Hello. 

I installed a new Mulitplus 2 48/5000. DVCC limit charge current does not work. With the old Quattro, DVCC worked without any problems. Did I make a mistake somewhere? 

System setup: 
ESS with Cerbo 
MPPT chargers show "external control".
 
greeting 
Paul

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user0815 asked
thomasw-1 edited ·

3 Answers

DVCC in off-grid DC installation - "dynamic charge current"

Good day!

Looking at https://www.victronenergy.com/media/pg/CCGX/en/dvcc---distributed-voltage-and-current-control.html#UUID-34a4601f-5b47-faa7-9b06-dc557696f5fc

Point 8.4.1 - sub-point "3"

"DC Loads are not accounted for. Even when a BMV or other battery monitor is installed. For example, with a configured maximum charge current of 50 Amps, and DC Loads drawing 20 Amps, the battery will be charged with 30 Amps. Not with the full allowed 50 Amps."


When or how can we change this? I cannot see why the DVCC cannot increase the current from chargers to compensate the loads and keep charging current at for example 50A.


Offcourse the idea works flawlessly in ESS configuration, but we do not have any inverter in the setup - but we do have high DC loads.


Any input or ideas will greatly be appreciated!


Regards

goose asked
mickwhitehead commented ·

0 Answers

DVCC not matching battery charge current

Hello All

Does anyone know why my MPPT SmartSolar (External Control) is only charging at 0.5A when the pylontech batteries are requesting 20A? this happens when the batteries get close to full, it seems to take quite a while to get from 96% to 100%

setup is MultiPlus 48/3000/35, SmartSolar MPPT 150/100, VenusGX, and 2x Pylontech us2000 plus, DVCC enabled and MPPT show as externally controlled.

lief ryan asked
lief ryan commented ·

1 Answer

How can I prioritize MPPT DC Solar over Generator in Off grid application

Hi community.

I have got a large number of Victron-Pylontech off-grid systems with Smartsolar MPPT installed. The inverters and MPPT are programmed as per the victron-pylontech instructions https://www.victronenergy.com/live/battery_compatibility:pylontech_phantom . As these are off-grid installations with generator, I can not run ESS assistant.


I have realized that when solar power is available but the inverters call the generator because the load is too high, as soon as the inverters sync with the ac source, the inverters take all the charge and the MPPT DC charge goes to something neglectable. When the inverters stop syncing with the AC source the solar power raise again. Needless to say this is not desirable and client not happy with it.

I have seen others threads with similar problem but honestly a lot of ramblings and not really any clear solution.

The questions I think it is very simple. On an off-grid installation (with no ESS Assistant), How can I prioritize DC Solar over Generator?

Jesus Mazo asked
Alexandra commented ·

2 Answers

Mppt smart solar vernetzter Betrieb?

Guten Abend


Wenn ich im cerbo auf meinen mppt regler gehe kommt folgendes, obwohl das dvcc aktiviert ist. Ve bus bms läuft auch ohne Probleme. Woran kann es liegen?


System

200 Ah lifepo4 smart victron

Ve bus bms

Multiplus 12 V 2000

Cerbo GX


100/30 smart

[image]

razer05 asked

0 Answers

DVCC Funktioniert nicht

Guten Morgen


Leider funktioniert mein DVCC nicht. Wenn ich auf den solar Laderegler zugreife steht dort stand alone.

Firmware sind alle auf dem neusten Stand.

Vielleicht habe ich ja nur was übersehen? Neu gestartet habe ich den Cerbo auch schon mehrmals, aber keine Veränderung.


Hier mein setup :

Victron Smart Lifepo4 200 Ah

2 mal battery protect 100

Touch gx

Cerbo gx

Multiplus 12 V 2000 VA

Mppt 100/30 victron smart

Multi control

[image]

[image]

razer05 asked
razer05 answered ·

1 Answer

Max charge current setting on MPPT

Setting the max charge current on the MPPT,


Thinking of using a 100/50.


Will that be the max the MPPT will output at all given times?

My battery only has a max charge current of 30a. But my solar capacity would exceed 30a. If the battery is charging at 30a, and I have 50a of solar available what happens to the other 20a? Would be to used by the inverter if a load is turned on? Or would it not be available because of the max charge current set on the MPPT.


I assume DVCC would be helpful in this scenario but it is a small system I am trying to do it as minimal as possible.


Would Smart Battery Sense help identify what is going into the battery and what is surplus solar?


Or do I need a GX and have DVCC enabled.


Thanks in advance.

Isaac Shannos asked
Mike Dorsett answered ·

1 Answer

Victron DVCC Management fehlerhaft?

Guten Tag


Ich habe in meinem cerbo gx das DVCC aktiviert. Nun steht in der Anleitung das theoretisch in der App bei meinem Laderegler, externe Steuerung stehen müsste. Nur steht dort nix er lädt ganz normal. Ist das normal?


Setup :

Victron smart lifepo4 200 Ah

Mppt 100/30 smart

Cerbo GX +touch gx

Multi control

Multiplus 12 V 2000

2 x battery protect 100 A

470 Wh solar

razer05 asked
razer05 commented ·

3 Answers

Multiplus 12/3000/120-16 slow responding to DC loads - Voltage varying

HI All.

Not 100% sue that anything is wrong as such.. but haven noticed since turning my engel fridge off from mains (as its main priority and on an inverted socket) so it is on DC only, that the charge voltage is fairly unsteady in 'float' mode.

Set up is 326ah CALB celled (2p4s) battery - Daly Smart BMS - 250a Raspberry pi 3b+ running Venus OS 2.70~15 - BMV700 connected via victron VE Direct to USB cable, then the multiplus.

Set up is on shore power bulk to 14.2, absorption for as short as possible,. float at 13.5. DVCC Shared Voltage sense is ON

The thing I have noticed is that when the fridge kicks in, the voltage drops eventually 0.1v (over a few minutes) to 13.4v, the multiplus then wakes up and starts adding current, eventually overshooting 13.5v to 13.65, then dropping down slowly again.. and the process continues.

Prior to having the fridge on DC i had a steady draw of about 2.4amps, it took a while to settle but the charge voltage eventually settled at 13.5 and held...

I'm assuming that this is maybe by design... i just dont like the overshoot too much, am I missing a setting somewhere that tells the MP when to kick in (ie 0.1v below and stop 0.1v above?)


Steve


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5teve asked
5teve answered ·

4 Answers

Feature request: Cerbo GX DVCC to also share SOC from BMV to Multiplus

Many of us have systems with a BMV battery monitor, a VS device such as a Cerbo, a Multiplus and other charging sources which the Multiplus ignores in its SOC calculation. Often in these systems, such as a boat, the Multiplus is often not used for charging when away from shoreline so it's DOC deviated badly. The Multiplus firmware has the ability to shut the inverter down at low SOC which is a good feature, but in the above scenario quite useless. In the system above, the Multiplus would benefit from being able to use the BMV SOC is shared SOC was programmed as part of DVCC.

pwfarnell asked
bathnm commented ·

2 Answers

Will DVCC work with 1x SmartSolar 150/100 MPPT and 1x BlueSolar 150/32 MPPT

i want to over size my solar array for cloudy/winter days i have a SmartSolar 150/100 with 3kwp array with a Venus GX and a MultiPlus 3000/48 and i want to add another array on a BlueSolar 150/35 but i need to limit the total battery charge current, will the GX communicate with both MPPT's?

lief ryan asked
lief ryan commented ·

1 Answer

SmartSolar VE.Can 150/70 not temperature compensating.

Hello All,

I have a Cerbo GX connected via VE.Can to a SmartSolar MPPT 150/70 VE.Can and a Lynx Shunt 1000 VE.Can. I have DVCC enabled as well as SCS, SVS, and STS. I have found that the MPPT changes charging states correctly according to the readings from the shunt. However, it is not compensating voltage according to the temperature reading from the shunt. The MPPT seems to be compensating from the initial ambient temperature as the standalone strategy. The MPPT has v3.05 firmware and the shunt has v1.08. Any help would be appreciated.

klabobidy asked

0 Answers

Maximum Charge Voltage (DVCC - Limit Managed Charge Voltage)

Good morning Victron Community,


I've noticed the addition in DVCC the ability to limit the managed battery charge voltage to a value of your liking. The way I understand it is the ability to override the BMS CAN CVL (charge voltage limit) value from the battery and to charge at the selected voltage specified in DVCC.


[image]


For this particular site we are using 2x Revov R100 batteries which are set up with CAN comms between the battery pack and Multiplus-II 5kVA. The battery's parameters are set up to charge at a CVL value of 55.5V as seen below


[image]

however as a test I've lowered it to 54V in DVCC (and KEEP BATTERIES CHARGED) BUT I see that although it is trying to be close to 54V charging it still goes above that at 54.51V and triggers a High Voltage alarm on VRM (see below):


[image]


[image]


VEConfig file is also set up to charge at 54V for both absorption and float for this test (just noting as extra information).


Question for this post: Any ideas why this 54V limit is not holding?


Although the end result doesn't affect the batteries (safe voltages) the alarms in VRM are the problems.


Thanks!

chrisawp asked
Vangelis Beligiannis edited ·

2 Answers

Maximise use of solar panels

Dear all,

I am struggling with the correct settings of the Venus GX, Quattro and MPPT to maximise the use of the solar panels. System setup:-Quattro 24/8000-720 Ah tubular plate battery (12 x 2 V cells)
-Venus GX, DVCC enabled (charge current limit at 70A, STS, SCS and SVS enabled)
-2 x LG Neon R 370 Wp solar panel (total 740 Wp)
-MPPT 100/30

I have been experimenting with the DVCC setting of the Venus GX and the configuration of the Quattro in order to maximise the output of the solar panels. So far I have concluded that when I use an assistant in the Quattro configuration that switches of the AC in, then I get a lot more out the solar panels (see screenshot 1 below). When I do not use the assistant and AC in is connected to shore, (see screenshot 2), solar output sometimes even goes to 0, but mostly around 50 W.

I have read and studied all manuals (Quattro, GX, MPPT) in english and dutch, read approx. 100 postings on the community site on similar subjects, but I still cannot find the best configuration for the Quattro and the DVCC setting.

The following is stated in the GX manual:
-" Enabling DVCC changes a GX device from a passive monitor into an active controller"
-" DVCC offers features such as a configurable system wide charge current limit, where the GX device actively limits the inverter/charger in case the solar chargers are already charging at full power."
-"Limit charge current. This is a user-configurable maximum charge current setting. It works across the whole system. MPPT Solar Chargers are automatically prioritized over the mains/generator."

My expectation was that by enabling DVCC with the charge current limit and STS,SCS and SVS enabled, that the GX would make sure maximum output comes from the solar panels and the output from the Quattro is reduced. But as shown by the screenshots this is not happening.

The only way that I was able to maximise the output from the solar panels was by using an assistant that switches off AC in of the Quattro, when the batteries are above SoC of 70 %. Once below 70 % it then reconnects AC in and batteries get charged to 90 %. After that AC in switches off again and solar panels take over the charging. This will work on sunny days, but a longer time without a lot of sun results in a lot of shore power being used to bring the batteries every time back from 70 to 90 %. Over a longer period of time this seems to use more electricity then letting the Quattro keep the batteries at 100 % continuously.

After having read more or less similar posts, I have the impression that if I lower the absorption and float voltage of the Quattro with say 0.2 V that the charging should behave as expected: solar charging takes priority and charge with high watts and Quattro charging is reduced. So I changed the absorption and float voltage of the Quattro with 0.2 V, but I still do not actually see the charging behave as expected, see screenshots (screenshot 1 with assistant, 2 without).

Any suggestion/help is appreciated, because I want to lower the shore power electricity bill and use as much solar power as available.

Thanks.

[image]

[image]

jurjenhoekstra asked
jurjenhoekstra answered ·

2 Answers

Pylontech UP3000 DVCC not activated automatically

Hi i just installed 7 US3000 and followed this

https://www.victronenergy.com/live/battery_compatibility:pylontech_phantom

for install


SYSTEM:

CCGX

BMV702

MPPT250|100

MPII 48/5000

all running latest alpha Firmware


According to the above install manual:

When the battery is correctly connected this will also set the following values automatically:

Venus Settings → System Setup Parameter Value

DVCC ON

Shared Voltage Sense OFF

Shared Temperature Sense OFF


I did not get DVCC set to ON in the CCGX and no auto config took place on any devices... any ideas why?

the batteries are visible in the CCGX devices tab and no apparent errors.


I ended up configuring everything manually but curious why DVCC did not work and potentially if there is an issue i need to address.

[image]

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thanks in advance.


Jim

jimbo asked
Guy Stewart (Victron Community Manager) commented ·

2 Answers

Connecting smart bms to other victron items

I have just purchased LifePo4 victron smart batteries and a smart bms. Am I right in thinking that I use a non inverting remote cable to connect the bms to my cerbo gx and use dvcc mode to control the mppt.
also where does an Orion tr smart 12/12-30 go in this situation???

My thought was the Orion output goes to the ve+ post of the battery and the remote (h) connected to the bms, likewise the mppt output connects here also and is controlled via dvcc parameters.

I have a smart battery protect that I am putting between the ve+ post and my loads (bus bar) but see that it is one way hence the questions ref the chargers.

Hope this makes sense and thanks in advance for any constructive advice given.

graham78 asked
kaspar commented ·

1 Answer

Bmv 712 oder Smart Shunt für Temperatur Messung DvCc

Guten Abend


Ich möchte gerne das DVCC in meinem cerbo Gx nutzen. Mit 2 Mppt victron Laderegler über ve. Direct, einem multi 12 v 2000 und 200 Ah Victron Ve. Bus bms lifepo4.

Nun steht in der Anleitung leider nicht ob er sich die temperatur automatisch aus der Batterie holt oder ob ich was machen muss. Ich möchte am liebsten den smart shunt installieren, da ich kein Display brauche wie beim 712. Einen Shunt brauche ich definitiv aber was macht da am meisten Sinn wenn man kein Display braucht? Oder mach ich mir da zu viele Gedanken? Geht mir nur um den Temperatur Fühler, den müsste ich ja extra bestellen, da der vom multi ja nicht an dem Shunt passt. Aber wenn die Batterie eh über das bus zum cerbo die temperatur weitergibt kann ich mir das ja sparen?


Gibt es sonst noch Dinge zu beachten bei dem DVCC?

razer05 asked
Matthias Lange - DE commented ·

1 Answer

Multi Plus Firmware Update for the old microprocessor possible to work with Cerbo Gx DVCC?

Hello everybody, just registered for my first question.

im super new to Victron Components but i i have read a lot the last couple of month.

I would like to know if it is possible to update my Multi Plus with SN 19xx125, to a higher Version which work with the Cerbo Gx an allows me to limit the charge current via Victron Connect iOS or Mac.

The Cerbo Manuel tells me its possible with Firmware 422 to have access ti DVCC, but maybe wit Firmware 2xx it might be possible to show the Multi at least in the Connect App or VRM Network?

So far with my Firmware 125 of Multi, i have no access at all.

Before i try updating, i just wanna make sure, not to do stupid and unnecessary things.

Thanks for your help.


Device list:

Multiplus 12/1600/70 (old microprocessor, sn starts with 19)

Cerbo Gx with Toch Display

Lynx Power In (Modified with Fuses like Lynx Distributor)

Smart MPPT 100/20

Smart Battery Protect

Smart Shunt

swellmarcel asked
Matthias Lange - DE commented ·

3 Answers

MPPT not charging during Multiplus absorption (DVCC)

Should DVCC allow the MPPT to charge when sun is available, even when the Multiplus starts a charge due to low SOC early on a sunny day?

I've found the Multi will still be in absorption and the MPPT will go to float, but decides not to bother with any output, even though it could.

If i turn the MPPT charge off and on (in Victron Connect) it will try to charge for a few seconds but quickly cycle through Bulk-Absorption to float and give no output.. Only when the Multi goes to float does the MPPT start charging.

I'm using DVCC, + Ignore AC, both MPPT absorption and float voltages are higher than the Multi's

Could it be overheating? Today was hot and the batteries showed a peak of 37 Deg C, or maybe an incorrect setting, I.e. reduce the Ignore AC charge to end after bulk, but that's not ideal until we have more solar?

Or a symptom of the MPPT adaptive charge, either way i thought DVCC should tell them both what to do, as the Multi decided to use the AC In mains to charge when there was enough sun to cover the end of the absorption phase :( ..?

Thanks

VRM link:

https://vrm.victronenergy.com/installation/62545/share/c76c4bf6


[image]

Al asked
Al answered ·

4 Answers

New VE.Can MPPT charger doesn't use BMV current value for tail current

Hello Community,

in december 2019 a great feature was added to the firmware 1.47 of the VE.direct MPPT chargers:

tail current mechanism improved: it can now use the real battery current. The current can be received via VE.Smart Networking (Bluetooth) as well as from a GX Device

This is a useful feature I'm using in most installations since it has been released. A week ago I tried to do the same with a VE.Can SmartSolar and unfortunately it doesn't seem to work at all.

The system consists of a CCGX, BMV700, Multiplus 5000 and VE.Can 250/100 SmartSolar. Other devices have been removed to keep things more simple.

There is no ESS/HUB assistant installed and therefore no active external control of the charger. Also no bluetooth smart network has been created and the firmware is up to date on all products. In the system the BMV is set as the default battery monitor to use and SOC syncs well with the multiplus. DVCC and SCS are enabled and SCS status is active. In the carger the absorption time is set to a fixed time with a tail current of 10A. If the current value falls below that value for more than one minute the charger should end absorption stage earlier and pass over to float. But it doesn't. Nevertheless DVCC is working with voltage, temperature and even current (tried a limit on the system). It seems the charger just has no use for the value "battery current" sent from the BMV and uses it's own current value instead to end absorption.

I have asked dealers, distributors and victron support, but all of them told me the charger would be able to do this without testing it. So I'd really appreciate if someone with a new CAN system (the old chargers can't) could test this. Of course a load must be switched on to have different current values between charger and BMV. I just want to know if this feature is working or has not been implemented yet and victron doesn't know about itself. If it works probably someone finds a mistake in my settings? I would prefer I made a mistake.


Thank you very much!

not-working.png
tail-current.png
BMV.PNG
SCS-active.PNG

canarias asked
Al commented ·

2 Answers

Correct DVCC setting for Quatto + Pylontech US3000c + Bluesolar MPPT

Hi all,


Recently got a system consisting of:

1x Quattro 48/3000/35

2x Pylontech US3000c

2x BlueSolar Charger MPPT 150/35

1x CerboGX


All firmware updates available via the VRM portal have been applied. I don't have a USB adapter, so I guess the inverter is on the firmware it came with.

The Pylontech - Victron setup manual says that the DVCC settings will be automatically populated. This was not the case for me.


What settings should I use for my setup?

DVCC -> On

SVS Shared Voltage Sense -> ?

STS Shared Temperature Sense -> ?

SCS Shared Current Sense ->

SCS Status shows "Disabled, external control"


When I enable limit Charge Current, it defaults to 50A. But I can change it.


It does look like the system sees the batteries correctly. Looking at the max charge current on the battery view, it matches the two batteries I have in my system.


Thank you!

Bas




bas-rijniersce asked
davidrkennedy edited ·

2 Answers

PV output (watts not volts) falls as inverter load increases. How can this be corrected?

While bulk charging batteries alone, PV output stays at about 1400 watts. When a 700 watt load is turned on on the multiplus, PV output mysteriously falls to about 900 watts.This occurs while still in bulk charging mode. One of my mppt's is throttled down to very low output even though it's in constant sun.


I'm running 3 Smart Solar MPPTs,BMV-712, a CCGX (DVCC on, SVS, STS, SCS on, Max charge off) and a Mulitplus compact connected via an MK3.


Any suggestions to fix this and keep the 1400 watt output from being throttled down?

James Demetriou asked
James Demetriou answered ·

1 Answer

Is the DVCC current limit a dynamic limit?

Is the DVCC charge current limit dynamic?

Currently running a system with a Quattro whose charge current seems to be limited to 50A which was the DVCC limit. I changed the limit on the CCGX from 50 to 70A. But charge continues at the same rate. The unit is not limited by the AC input current. It is below 50% of the AC in limit.

The BMS has a 600A charge limit

So what is limiting the rate of charge?

Therefore I am wondering if the Limit is a dynamic limit or a set-point sent once at the beginning of the bulk sequence or other trigger. If so which trigger.



jmarc asked
Elimac answered ·

1 Answer

DVCC Firmware insufficient warning on System overview

This error keeps showing up and then clearing, it has done so at least 10 times in the last couple weeks. All firmware is up to date according to VRM online checking.

Cerbo GX

3 Quattros

BMV 712

3 BlueSolar Charger MPPT 150/85

2 Skylla-IP44 24V/30A (currently turned off)

It's getting pretty annoying to get an email every time this happens and then clears, I have looked through every post concerning this and see no solutions, anybody have an answer to this?

Thanks, Ron

ur12vman asked
jmarc answered ·

4 Answers

A DC-DC charger that participates in DVCC?

I stumbled upon the Buck-Boost DC-DC Converter and thought it would be great for my hybrid RV setup (12V OE alternator and battery, 24V auxiliary alternator and house LFP bank). But then I was very surprised to learn that it is not integrated into the beautiful Victron CAN ecosystem and thus cannot participate in DVCC.

In my dreams, I would have this device work bidirectionally: use up to 40A of current from the OE system to charge the 24V LFP bank and keep the OE 12V system topped up from the 24V bank when the engine is not running. Both being controlled by the REC Q BMS.

Is there any way to achieve even a portion of this?

Thanks,

A.


Adam Sherman asked

0 Answers

Multiple SmartSolar MPPTs and DVCC - What set the power output?

In an installation with a CCGX and multiple SmartSolar MPPTs each MPPT with the same spec array and exposed to the same incoming solar what will determine the power produced by each MPPT?

Is it just down to small differences in physical installation? e.g. cabling or variation in actual panel output. Or is there something happening within the DVCC algorithm to control power output in each MPPT?

rodgerd asked

0 Answers

3-Phase MultiPlus II ESS System with an additional MultiPlus II for battery charging

Dear Victron Fellows,

I have the following use case for two almost identical installations:

On the already existing 3-Phase ESS installation using MultiPlus II Devices, the battery should be charged in case of a grid failure and in time of insufficient PV power.

The installation already has the following devices:

  • 3-Phase ESS installation using 3 MultiPlus II 48/3000 operating in parallel to the public grid (230V)
  • 3-Phase Fronius AC PV converter connected at the critical loads AC Output of the Multis and controlled by frequency shifting (MG50)
  • CCGX
  • BYD B-Box 10.0 connected by VE.CAN to the CCGX
  • MPPT Solar Charger connected by VE.direct to the CCGX

A single phase 5kVA 230V Diesel inverter is available. It should be used to provide the power for the charger.

Is it possible to charge the battery using an additional MultiPlus II connected to the CCGX?

Can the Multi be connected to the CCGX and does it receive the relevant battery information BYD BMS information (DVCC)?

According to the following question it should be possible. And that is what I would expect and I think is the reason of DVCC.

Asking my dealer to verify the answer he told me that it is not be possible to connect the additional Multi to the existing CCGX, because the additional multi would need its own controller and needs to operate independent from the ESS system.

He suggested to connect the Multi by the relays (LINK). This would not be an preferred option for me because I would expect the charging process to be more optimal if it is controlled by the batteries BMS.

If the additional Multi can not be connected to the CCGX, would it be possible to add another Venus device and connect the CAN Bus to this device for retrieving the BMS information?

Best regards,

Martin

martin-m asked
martin-m commented ·

3 Answers

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