i do not find where i can disable the " external control" , because i only use my bms as a last protection , victron must be the boss all the time…
what are the parameters to get SCS status Enabled?
already i have controlling BMS = no BMS ( as you can see on picture )
@guystewart is it possible to give me the conditions that must be met for the SCS status to become enabled?
i can not find a setting that is wrong, my thinking is something in the ESS ( VE.config ), but not sure?
After you disabled BMS control. Did you restart the whole system?
Have you tried to see if the old GUI allows you to change it?
hello @nickdb
tests i have done on my working system ( KG - vijver ) :
ve.config : tab charger : removed the Lithuim batteries option
Assistants : changed from lifepo4 to lead acid.
restarted everything , cerbo , MP
never will this SCS option be seen enabled.
restarted the Multiplus several times
on my system KG-Home :
thats a 3 phase system ( now test running )
without a battery ( only a 56v charger- emulating a battery )
changed ve.config like i did with other system = no luck
on this system there is not even a bms connected , and i have never put that option on.
did reboot everything = no change.
if you want you can login to my systems.
old GUI is the same problem.
ok, i did some more testing,
on my working installation ( KG-vijver ) and on my 3 phase test sytem ( KG-home = no BMS connected )
For the love of god, i do not get the SCS status to be active. (always shows Disabled ( external )
test on both system the same =
reset from everything on the inverters , for that i mean, a blank VEconfig file , meaning = nothing selected fom Lithium batteries and no Assistant programmed
=> did nothing, the only change was SCS = Disabled ( no charger )
so in my view , it must be something in the Assistant ESS
so i installed the Assistant ESS again, BUT nothing selected that was with the name Lithium or BMS ,so lead acid style .
i uploaded that to the MP2 ( restarted ) and rebooted the Cerbo gx the same time
for a split second i saw SCS - Active but that went away to SCS - Disabled ( external )
I know it can work, 11 months ago i had Lead acid batteries with ESS installed , 100% sure it worked than . ( on Quattro 8k = Changed it to MP2 5000 )
but for some reason i can not get it to work now.
the reason i want this to work =
I have to many PV for my battery ( 200A max. input ) and i have 200+ Amps from my PV, so i want to limit that to about 180A
i do not care about the BMS style - i only want the readout from BMS and Victron regulates everything, just like its no " NO BMS Controle " ( under the max. voltage and max. current of the specs of the BMS )
= like a Lead Acid style setup but with lifepo4 cells
Hi I’m having the same/similiar issue. Moment I plug in Ve.Can SCS disables? If I connect via Ve.Direct it’s back. I have had this problem for a year or so now and it’s driving me insane. 4x MPPT 250-100 Lynx Shunt 1000 Quattro 15000 Cerbo. If I run 1 charger via Ve.Can its fine. If I run 2 or more it disappears? I have OPZv 1000Ah and it’s destroying them because I can’t control tail current I can’t even fix absorption for set time and no tail the moment I switch on another charger the voltage raises rapidly above my settings of 56.4 than goes straight to float? If I disconnect chargers from battery it’ll work as it should than go back. Iv tried everything from isolating chargers different Can profiles reboot firmware blue tooth network daisy chain ect ect. Just as I think I fixed it it’ll do it again in a couple of days. All cabling/wiring is overkill with next to no voltage variations I even removed DC disconnect switch as I do draw some heavy currents now and that and still same issue. From day 1 iv had a faulty Cerbo which intermittently would loose Ve.Can that was replaced a faulty charger that wouldn’t register VeCan I have replaced all communication cables I had an intermittent faulty Lynx 1000 Shunt that was replaced. It was all purchased brand new from a reputable dealer. Starting to think 1 of the components has caused a fault in the rest of the system.
Supported batteries will preconfigure the DVCC settings, these cannot be changed.
Pre configure to destroy them? So why’s is it ok when running just 1 charger regardless of its communications with Cerbo? I even maxed it out to 100amps but if I connect another even if both can only produce 60amps the voltage ramps up and skips absorption.
Misunderstood your query, I was referring to BMS CAN, where the system preconfigures DVCC and those settings are often forced.
You are having a different issue with VE CAN devices.
That is indeed a strange one.
To clarify, SCS applies to systems not using ESS or managed batteries.
From the DVCC section:
SCS: Applicable only to systems not using ESS and not using a managed battery, as charge control for MPPT solar chargers and Orion XS is external in those cases.
Yes I understand that I’m completely off grid have fairly adequate sunshine pv array Ah battery ect ect. No need for me to have any assistance it’s or any other features. I have old school OPZv 2V tubulars and when forcing charge a few backs overriding the skipping of absorption I drained them to suggested voltages and still pulled over 800ah I than checked it cell and all apart from 1 had a .07V variance. I than removed the individual daisy chained BMS modules that have no and need no communications with the system rested batteries and checked again charged and checked again heavily charged ect ect batteries aren’t the issue nor is my wiring at any amp draw and all within .02v. I don’t know how it’s done it but I thought networking via Bluetooth was over ridden when 250-100 TR Ve.can mppts r connected to Cerbo the Cerbo networks them and any networking done outside of the Cerbo is ignored? When testing combinations of chargers (4 identical) after a day or 2 it would volt peak during bulk and skip absorption again. Last night I noticed SCS disabled in DVCC when just one particular MPPT was connected via Ve.can but not via Via.Direct but this time I had no network configuration. I tried 3 other units individually and none made it disable. I than daisy chained combinations and found the culprit. It’s connected currently via Ve.Direct just to see what happens. When looking at dates this morning iv had this issue for almost 2yrs! Something happened during a firmware update a long time ago and I was a little unfamiliar with the system and time poor. I think either 1 MPPT Cerbo or the Lynx Shunt somehow caused damadge to anything connected via Ve.Can. 100% not my wiring or instal just a 1 in a billion glitch and being intermittent has made it extremely difficult. Good thing is I learnt so much about the system and although it’s given more grief than anyone can imagine Iv learned to love it…. Or maybe love to hate it 
notice history of only 2 days? On all chargers but the faulty one and only comes up intermittently.
Gets better. During a reset of history a while back somehow some of the chargers also deleted total kWh? This you won’t believe and I swore I took screen shots and have tried to trigger it to do it again but I got a little 150-35 a distance from the rest of the system. When viewing history somehow it networked to an MPPT and history showing a 12v battery and charging peaks of 100amps: Think the system is possessed!
