My BMV 702 doesnt show the starterbattery voltage.
B2+ on the shunt is connected. In the setup menu u have to switch on
function 58. But in the menu it skips 58. It goes from 57 to 59 so i cant switch on the function of showing the starterbattery.....
Hi! We are have just bought a couple of the Multiplus 5KW charge inverters. I'm trying to make use of the programmable relays through the MK3 without having to use the assistant modules. Can we just directly control these? It'd make my life a lot easier than trying to put together a workaround. I have looked though the MK2 protocol manual and it looks there are a whole host of commands available that are not documented, maybe there is an MK3 manual that I cannot find or specifically a VE.Bus protocol manual. Does anyone know a way of doing this perhaps with a custom assistant even?
It looks like both these models are available to me in South Africa.
I want to build up my system over the next five years using one of these models as my building blocks. I want my building blocks to be firmware compatible so I can parallel the units that I buy in future years. The two models are incompatible with each other.
My question is which between these two models is likely to be available for longer?
In other which model is going to be phased out last, so I have a better chance of getting more compatible units in the future?
Closely monitoring my ESS system I have noticed that when this is on #1 #2 or #5 or #7 states reaction on changings is much slower than in normal operating state.
Example: Let's presume the system SOC is less than Active SOC limit with Optimised with Battery Life activated and is displaying #1 and #2 on CCGX. PV inverter is in parallel with AC input 1 and generates power to partially cover the consumption, the difference being taken from the grid. Suddenly the load disappear. In that very moment all the PV power is injected into the grid and the system is unable to redirect it to battery in less than 60 seconds.
In normal operating condition, when the battery SOC is greater than Active SOC limit, the system redirects the power to battery in few seconds.
Can someone explain why? Is this normal or there is something wrongly configured in my system?
I have my bluesolar MPPT 75/15 controller (and ve direct usb dongle) in my campervan behind my drivers seat. Solar panel on the roof to PV in on controller, battery in put to positive and negative on battery under my seat, and load wired up to my leisure accessories fusebox. All polarity correct and It has been working great till around the recent fw update and I have had bizarre behavior since. :(
1) controller goes off at night, no leds lit, and subsequently load goes off (load is set to always on) my battery is reading 13.02v directly and at the screws on the controller.
2) in the day, when its back on, the voltage on the battery on the controller reads mismatched values like 3.53v and sometimes 0v. At the battery (2 meters used) its over 13v and on the controller screws
3) Also no charging seems to happen, no float voltage or charging routine on the battery (charging enabled on software)
4) Load was set to always on, I since disconnected unit to give it a 'reboot' and powered it back up (correct wiring order of load, battery, then solar). I tried with battery life setting also and I would get a voltage pulse of 6-12v on my load circuit (ceiling lights would flash!)
As a result, and needing power at night, I have removed the battery in + and put it on the same feed as the controller load + (distribution nut, not directly in the controller), as a result I now get power (no longer feeding off load) but also In the morning I noticed everything working as normal (bar the controller is now wired wrong, no + in on battery) so the charging routine is working, pv is measuring high watts when its charging and finally the float voltage is being applied. I've reset the settings to default and no change and also the 20a fuse is intact. Thanks for reading!
Can I do this ???
If I want to automatically switch to a 240v Supply (to Charge concurrently with Solar) when the battery SOC drops to a defined level say 80% and then go back to inverter/solar when the battery voltage comes up to 95% SOC
while maintaining a generator input for high/excess current draw & charging when Mains is not available
can this be configured via CCGX or do i need VE configure & could someone instruct me on setting it up Please
Does anyone know if either the 712 or the mppt 100/30 have the capability of starting a generator on an alarm activation?
I have the problem, that every time I reboot my Raspberry Pi, VRM stops showing my consumption in the graphs.
VRM shows the consumption in the dashboard tile after reboot so the data is transmitted, but simply not shown in the graphs.
I updated my Pi to the latest Venus firmware (2.20) a few days ago, but the Problem stays the same.
To get VRM to show the consumption in the graphs again I have to do a couple of incomprehensible things.
Something like, disable "has DC System" option, define the AC input of my Phoenix 12/3000 Inverter to grid or genset (Phoenix Inverter has no AC input) and reboot 2 to 3 times.
The red bars are then shown again in the graphs and I can set back the input to undefined und enable "has DC System" Option again.
The consumption is then shown in the graphs as Long as I reboot the device again.
Sometimes this is done in a few minutes, sometimes it takes an hour of playing around to get the graphs shown again.
It is really not clear to me, but the "has DC System" option plays the main role here I think.
Maybe someone knows this issue and has a solution for it.
RPi with venus 2.20
Phoenix Inverter 12/3000 (detected as a Multiplus in Venus)
I have a couple of customers who have Northstar AGM batteries on their small off grid systems. It seems from the Northstar data sheets they need equalisation every 2 weeks. Now we know the customer is never going to do the twiddly switch thing every two weeks (or even ever!), so was pleased to see the latest CCGX V2.20 firmware to include equalisation settings.
The only problem is, I cannot find anything pertaining to equalisation that I am able to initiate on the CCGX. Ticking the Equalisation box on VE Direct software is not quite enough as I'm unable to modify equalisation voltage or frequency of equalisation.
Any help greatly appreciated, as I am only able to equalise using a smart MPPT at the moment.
A system has 3 mulitplusses (3 phase config). We want to shut the system down with the remote console in the VRM monitoring (since we are abroad).
Which menu option should we use?
Can connect via bluetooth on iOS and android. MacOS cannot detect charger via app or system. Any ideas? Have insured no other device is connected. Still cannot pair on Mac.
There is an installation I am involved with where during commissioning the shunt was installed with the batteries on the right hand side and the loads / charging sources on the LHS. Is there anyway to solve this remotely? i.e. teach the shunt to recognise current flow in the other direction?
Alternatively, how might we best modify the settings to get the site working properly? I am hoping I can still display SOC somehow and hopefully use voltage to temporarily control generator start / stop via the CCGX
Hi everyone, I search a solution to connect a BMV-712 at my local Network. I have 2 solutions : - With an ethernet cable (Modbus TCP) - Witch an USB cable, directly on my computer Thank you by advance for your help. Mehdi
The FAQ states the separate dongle is required, maybe it needs updating to include the newer models that have bluetooth integrated dont require the VE.Direct Bluetooth Smart dongle (ASS030536011)
Just confirming before I replace my controller with either the latest BlueSolar 75/15 or latest SmartSolar 100/20, as it seems counter-intuitive to then purchase a separate smart dongle
Please help I’m at my wits end!
Our smart solar MPPT 100/20 keeps shutting down after 30 seconds or so. It will only then restart after I open the app on my phone.
I have no idea why?? Please please help