Our customers like to use the SmartSolar relay to trigger an external contactor with an immersion element when the (CANbus Pylontech) batteries are fully charged. Triggering the relay on Float/Storage state seems to be the best approach, though we've discovered the relay does not seem to trigger when the batteries are full when the SmartSolar is operating under "External Control" from the Cerbo GX with DVCC enabled. If DVCC is disabled, then this seems to work as desired. On the Victron Connect main page for the SmartSolar, it'll only display Bulk/Absorption/Float state when DVCC is disabled; otherwise it only says "External Control".
I was wondering if others have experienced this, or if Victron staff can confirm this is the correct operation and whether there is no way to use the Float trigger relay option when using DVCC and CANbus batteries. Thanks
I’m exploring options for using DVCC to protect a Li Smart battery. I know that I can use a Lynx Smart BMS in conjunction with a Cerbo GX to do this by connecting VE.Can on the Lynx Smart BMS to BMS Can on the Cerbo GX, and enabling DVCC in the Cerbo GX.
Can I do something similar with a VE.Bus BMS? In searching for the answer, I came across this statement in the CCGX manual… “DVCC can be used without any problem. The same is true for Victron Energy lithium batteries with the VE.Bus BMS”. However, the VE.Bus BMS manual makes no mention of DVCC, and it’s not clear to me how one would connect the VE.Bus BMS to a Cerbo GX to allow this. Would one connect VE.Bus on the Cerbo GX to the connector labeled MultiPlus/Quattro on the VE.Bus BMS? I have no inverters in my system so I’m not using VE.Bus for anything else.
My end goal is to have the ability to control an MPPT 100/50 which is connected to a Cerbo GX via VE.Direct. Since the MPPT 100/50 only has one VE.Direct port, I don’t have the option of controlling the MPPT 100/50 via VE.Direct with a non-inverting remote on/off cable.
When I leave my boat for the winter I want to turn off the charger in the Multiplus but leave the pass through working to power some anti frost heating. I also have a BlueSolar Charger MPPT 100/30 rev2 connected to the Venus GX which I would like to still be operational and charging the batteries. If I limit the charging current to zero using the DVCC in the GX will that also limit the current from the MPPT?
I've noticed the addition in DVCC the ability to limit the managed battery charge voltage to a value of my liking. I am very happy, that this is finally possible now.
Now, I would like to set this maximum charge voltage using Home Assistant.
Inside my Modbus TCP services, I have access to com.victronenergy.systems.
According to CCGX-Modbus-TCP Register-list.xlsx, the only writing-enabled registers com.victronenergy.systems are the CCGX-relay-states.
Is there any possibility set the Maximum Charge Voltage per Modbus TCP from Home Assistant? If yes, what is the register of this service?
I have a 3-phase Multiplus II system with BYD batteries & AC coupled Solaredge with some DC coupled PV for black-start scenarios.
I use frequency shifting to control the Solaredge production. I can see the Solaredge ramp up/down according to the frequency changes.
I also use DVCC->Limit Charge Current to slowly charge the batteries each day and maximise the usage of the DC PV (it does not export). If I turn off the charge limiting, the Multiplus II's work hard, spin up their fans which can be heard inside the house so I want to keep it on.
If I drop the grid to the system, the Limit Charge Current setting seems to interfere with the frequency shifting to the point where the battery discharges rather than increase the AC coupled production to cover the load.
Limit charge current set to 50A, Victron setting the frequency to 50.9Hz:
Limit charge current turned off, Victron setting the frequency to 49.9Hz
[image]Does anyone have any ideas?
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.
All settings were confirmed with this guide: https://www.victronenergy.com/live/battery_compatibility:pylontech_phantom
Venus GX settings
(Charge voltage was set here to 52V only as a test, it did not help)
Any assistance ill greatly be appreciated!
3x Multiplus II 48/5000
2x MPPT 250/100
1x Fronius Symo 15 on AC out
8x Pylontech US3000
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?
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.
Both MPPT's are externally controlled according to the remote console and part of a VE.Smart network;
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
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!
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.
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?
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?
200 Ah lifepo4 smart victron
Ve bus bms
Multiplus 12 V 2000
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
Multiplus 12 V 2000 VA
Mppt 100/30 victron smart
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.
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?
Victron smart lifepo4 200 Ah
Mppt 100/30 smart
Cerbo GX +touch gx
Multiplus 12 V 2000
2 x battery protect 100 A
470 Wh solar
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?)
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.
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?
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.
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.
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):
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.
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)
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.
Hi i just installed 7 US3000 and followed this
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
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.
thanks in advance.
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.
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?
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.
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
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 :( ..?
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!
Recently got a system consisting of:
1x Quattro 48/3000/35
2x Pylontech US3000c
2x BlueSolar Charger MPPT 150/35
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.
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?