This site is now in read-only archive mode. Please move all discussion, and create a new account at the new Victron Community site.
Hi, my system was working fine, but a few days ago on Venus I had error 24, I read in the error article Error 24: switch system protection started. turn off the inverter and after 4 hours I turned on however we do not use a generator or public network. Today the error reappeared without success for it to work again.
I do not think it was an overload since in the advanced parameters it shows me the maximum power consumption does not exceed 3000w per quarantine
Do you have updates on this issue? How did you solve it? What was the root cause?
Very similar issue with me, same overload and low battery alarms/warnings when no clear overload and low battery measurements. I already had AC connection PCBs of 2 Quattro units, but don't know the actual root cause yet.
I read what the error indicates, but it doesn't make sense since it is an isolated installation without a diesel generator and, as indicated in the vrm, the load was not significant. the installation is less than 10 months old
Did you measure the unit like described in the document?
What are the values?
If not sure what to do: please ask an installer to check this for you.
I am the installer, only it is an installation in a province and I wanted to know if there is any remote solution, I tried it also deactivating the quattro charger, there was no overload in the vrm it is validated, I can share it if you share your email, currently there is no trips to the province Due to the quarantine, as I mentioned before, the equipment worked less than 10 months, so the client asks us for the guarantee, the equipment has already been tested without load, but the error appears again shortly.
ID VRM: 7c386655fe83
I'm sorry @Jimmy Sanchez Huerta but someone has to measure it and when things are broken, arrange a repair / replacement.
Hello,
I had the same issue almost a month ago with 3-phase Quattro 15k configuration as well (ACin1 Grid and ACin2 Generator). I followed the step by step procedure as described below, found out the neutral in and out of one unit (master) showing almost zero Ohm while disconnected and off. The authorized service provider changed the connection PCB internal to the Quattro unit, we re-installed, uploaded the new firmwares, re-configured with the same ESS settings, turned-on and it worked.
Almost 1 week later, we had the same error 24 alarm popping up again, after measuring the resistance of the neutrals on all 3 units, now another (slave) unit has 375Ohm between neutrals ACin1 and ACout1 (the other units showed infinity on the neutrals resistance). It seems it's having a cascading effect and I want to know the root cause why the first unit failed and then after the fix the second unit failed.
Please advise: @Johannes Boonstra (Victron Energy Staff), @Matthias Lange - DE
Let me know if you need more details and information.
@Guy Stewart (Victron Community Manager) could you please direct me to the right person here who can help me out?
Thank and regards.
Hello, You have a three phase system which has the neutrals joined on all three units on the Acout and also joined the neutrals on ACin. How can one resistance be higher then the other as the three relays are in parallel?. or did you remove the neutral in a running system or in stand alone usage??
Based on the data retrieved from the VRM, both times error 24 popped up, it was immediately after a grid (ACin 1) power off with slightly low single phase voltages (200-214 Vac), or after a low-battery or overload shutdown which in turn was after a grid (ACin 1) power off.
Did you get to the bottom of the issue? I just experienced the same problem with 2 multiplus ii in parallel. AC input voltage fluctuation during scheduled charging caused the multis to go into protection mode with error 24. After resolving the issue, the multis will not come back on, the fault persisted. I measured the resistance between L & N of all inputs and outputs, low resistance <1 ohm on Line 1 output. Assuming both units are faulty as the instructions suggests, left it off completely overnight. The next morning, started working again, not sure if it was the few hours off that cured it, or trying to switch to Inverter only to start with. As it is now working perfectly, I proceed to measure the resistance again with the units off, and they still measure < 1ohm between L&N for AC out 1. It can't be faulty now as it is working but why the instructions suggest that it should be no connection?
I have exactly the same problem with a three phase system 2 in parallels (6xQuattro 10 48 Volts).
This is an off-grid installation.
The system was working absolutory fine for about 6 month then It came up with error 24.
I replaced a Connecting Board of one of the inverters, then the system was working fine for a week and it happened again.
Now as soon as I turn the Generator on. The input MCBs pop up and Error 24 appears.
Any suggestions???
Check your AC wiring and distribution board.
Make sure everything is tight. What i have seen is that after install a few months down the line this does need to be done.
What you might find is there is a relay opening or closing slightly later than others causing the issue. The current detected over it will throw up the error.
Check voltage between neutral and earth.as well. Many people say "oh but no changes were made", but yeah stuff works loose so it can change itself... Rats get in ... or other wildlife....
An aplliance can be failing and leaking to earth this can also cause an issue.
