I don't have the mk2/3 here at the moment but I really need to be able to configure/monitor my MP-ii immediately.
I keep seeing references to the bus being rs232 (2400baud), but can't find a proper pinout (nor even confirmation that ve. bus is 232 and not TTL).
Anyone happen to know if it's TTL or RS232, and have a pinout for the rj45 port?
I am expecting a shipment of 16x280Ah prismatic LiFePO4 cells. It is my first experience with non-lead acid batteries. I understand that I need a BMS, but there is incredible selection and profound difference in cost between models. I currently have a Cerbo GX which I understand has two data busses, a CAN bus and a proprietary VE.bus. This paragraph is the entire sum of my BMS knowledge, +/-.
I want to find a BMS that integrates maximally with the Cerbo. I'm happy to pay for quality. I don't necessarily need it to be a "supported" solution by Victron, as long as it integrates well. In another group on DIY Powerwalls, Batrium seems to be the most popular name in BMS. Is anyone running a similar system to what I've described, with a Batrium BMS?
What other options do I have? I'm also impressed with REC-BMS, but it's very pricey. A couple other ones I've glanced at are 123Smart BMS, Tiny BMS, Chargery BMS and DIY BMS. Also Daly?
The two most important things to me are 1) safety and 2) integration with my Victron products. This will be a 16s, 48v (although it's not a strict design requirement) LiFePO4 battery with low-moderate current requirements (probably something like a 3000 watt inverter). Thanks for any input!
I don't know if any of the engineers actually read this forum, but I'm hoping to find out the maximum allowable cable length for the VE. Can interface cables. I intend to build my own cables using high-quality shielded cable (probably Cat7) so the attenuation and interference should not be a problem. I only wonder what the maximum latency is...
I can find information on the maximum cable length on the VE. Bus. People on the forums are saying that they're having trouble with longer cables, but the literature seems to indicate that you should be fine as long as the total cable length doesn't exceed 100 meters. Therefore, I believe that these people would do better with larger shielded cables since the literature seems to indicate that they shouldn't have latency problems, but I have found no such literature for the VE. Can.
I'm trying to mount the GX 70 upstairs quite a ways from the battery room. I figured I'd just locate the Cerbo GX up next to the GX 70 location.
If anyone can help, or if anyone can tell me who to contact, I'd really appreciate it!
Installation is an EasySolar 5000/48 with the MPPT upgraded to a SmartSolar 250/100, charging 2 x US3000A Pylontech batteries. Solar panels are 4 strings of 4 panels each (48V, 420Watt) giving Wp of ~6400W.
The Ve.Bus voltage increases when systems starts limiting the Solar input power to ~ 4500-5000W (the limiting level is ambient temperature dependent)
Is this a bug?
If not, what is the reason the bus voltage would go higher only while limiting is active?
I have a VE-bus BMS where the charge disconnect output is currently controlling a Skylla-i 24/80 via a Skylla-i remote on-off cable
I intend to add FIVE SmartSolar 100/20 MPPT. My understanding is that each MPPT will need to have a Ve-direct non inverting remote on-off cable connected to the BMS charge disconnect output.
Will this work or will it exceed the 10mA max source current limit for the ve-bus BMS charge disconnect output?
VE.Direct unknown product (A19E)
Victron verweist auf "Händler fragen"
Es ist nicht möglich die Daten des Ladereglers mit connect abzuspeichern/exportieren. VictronConnect V5.73 bringt keine Verbesserung
Hello Forum !
I do have an issue with updating firmware on Multiplus-2 device using the MK3 USDB-to-VeBus dongle.
Neither VeFlash nor VictronConnect apps 'find' any device connected to the 'other' side of that unshielded-factory made RJ-45 cable 'behind' the USB-to-VeBus adaptor.
The PC is a Win7 machine with SP1, the Multiplus is a 48/3000/35-32 230V, just purchased, SN HQ2207FYF69V.
When using the VeConfigure program on that same PC, same same cable, all works fine
(i.e. i can 'get' and 'send' the config for that multiplus without issues).
all the programs (VeFlash, VeConfigure, VictronConnect) are on the latest downloadable version ...
That exact same thing happens with my 'old' (2017) Multiplus built into the 'EasySolar' box.
VeConfigure is ok, neither VeFalsh nor VictronConnect 'finds' that device.
If there is anyone out there who could point me to some more in-depth troubleshooting steps
(logfiles of VeFlash or VictronConnect ? - those glorious completely useless errormessages starting with 'unable' or 'failed' are not helping at all ...) or has another idea howto upgrade firmware on the Multiplus-es - much appreciated !
thanks a lot ,
I have an issue with an EasyPlus connected to the Cerbo.
- The Cerbo „sees“ the EasyPlus, but claims it‘s not connected. Still, the Cerbo can read the type of device (Multiplus Compact, the product number and firmware version (481), but not the device state or any parameters. See attached screenshots.
- I have checked:
At the time I took attached screenshots the EasyPlus was inverting.
Any advice would be appreciated.
When the VE.Bus Smart Dongle is connected to a parallel configuration of 2x MultiPlus Compact 24|2000|50 Victron Connect shows the whole parallel configuration as one big inverter/charger.
Even in the detailed view it is just one inverter/charger. Is there a way to see the details of each MultiPlus seperate?
Wir haben hier 2 Multis. Eine lies sich damals nicht einzeln ans laufen bringen. Immer Ground Relay Fehler. Eingeschickt und neuen bekommen...
Fehler bestand dann immer noch. Ich denke beim flashen ist da was schiefgelaufen weil ich die Firmware 497 dann manuell raufgespielt habe, da lief der multi.
Haben Sie dann als Split 2 phasen System konfiguriert. Die Anlage lief knapp w Wochen Problemlos und nun meldet der neue ausgetauscht multi wieder einen ground relay Fehler. Die Anlage läuft aktuell nicht mehr und ich komme nicht weiter.
An einen Defekt kann ich nicht glauben weil die Anlage fast 2 Wochen ohne Probleme lief...
Angeschlossen sind an beiden Multis der ac in 1 und der ac out 2 der zur notstromverteilung geht.
Hier mal screens aus der console
Kann damit jemand etwas anfangen oder hat Ideen?
I have recently upgraded my Li batteries with 2 x Smart Lithium Batteries 24V x 200Ah..
The 3 phase system equiped with Quattro multiplus works well but, since a few days, the red led on the VE;Bus BMS black box connected to the batteries remains permanently on.
This indicator indicates normally a température problem or cell excess voltage.
I have checked battery parameters with the blue tooth connection. Cells are balanced at 3.32 /3.33 volts and the température read is 25°C / 26°C.
This led indication seems erroneous.
Is there a way to reset this Led parameter ?
Thanks for your help.
Instructions for remote verification of CCGX ability to update VE.Bus firmware via VRM are ambiguous.
3 options listed:
I am offsite and unable to verify my serial number.
The serial number is not listed in the VRM device list.
I find the last option ambiguous. What needs to say MK3? Does it need to be the items on the left or the right?
Maybe a better example would be to show a CCGX that DOES meet the requirements and identify the specific criteria?
Here's what mine shows:
This was purchased in 2019, so I would hope it's newer than 2017, but given the instructions, I can't confirm if it meets the serial number requirements per the example.
[image]VE.Bus System Charge state showing Bulk or Absorption in the middle of the night where no charging is taking place , this causes SOC jump to 100% mysteriously , please see screens of VRM log download.
When it decides to get stuck in Absorption mode from day before and througout the night , it makes my SOC jump to 100% prematurely and when battery is nowhere near full.
This appears to happen every few days , sometimes once a week , sometimes twice a week , no exact or particular pattern.
Also , every single night charge state shows BULK , I can live this , even though it is obviously incorrect , but at least this does not make my SOC jump.
Jump only happens when it is stuck in Absorbtion mode.
Multiplus II GX 48 5000 , 3 x SmartSolar MPPTs , multiplus is running in inverter mode , no assistants.
Absorption voltage is specified as 55.65V and state of charge when bulk finished is definded as 95% in VE configure.
I just read Wiring Unlimited (what a good read it is) and while reading 4.5 "Switching the negative in multiple unit systems" i remembered a blog post from late 2016 (https://www.victronenergy.com/blog/2016/12/29/erm-energies-solar-powered-containerised-system/) where it seems like they have MCBs on both + and - just before the Quattros.
Is the VE.Bus isolated on the Quattros, or is the system in the blogpost just not installed correctly?
I believe this information should be added to the ESS Manual, i couldn't find anything about isolation in there.
Also, i have a vague memory that i have seen a document that describes what parts/connectors on a unit that is isolated and what is not. But i can't seem to find it, any one know what document i mean?