I'm running 3 Multiplus II 5000 parallel in an offgrid installation controlled by a Cerbo GX. All PV is DC coupled.
As the winter is coming I need from time to time assistance from a generator.
My problem is that the input current limit feature is not working anymore.
Please see attached pictures:
You can see drawing 4,4kW from the genset, but 0A. On top a weird -7.3A on the outside.
For testing I at the moment I started EV Charging with 3.6kW + 0.5kW house load. So this AC Loads value can't be right on top. Double checked with a AC Clamp meter.
What I now have done in first step is to reduce the Charger Amp limit in the Multiplus to 10A (in fact 30A as there are 3x Multiplus) through victron connect so that even localization of the failure is possible.
The input current limit doesn't take any effect. Even tried to re set this through victron connect and also disabled "can be overruled by remote" with no effect. Sure I set this on the master and both slaves. 6 A in each device which should end up in 18A (around 4,1kW).
This definitely had worked half a year ago.
For me it seems that at one of the multiplusses the internal measurement is not working anymore.
Any other thoughts?
Could it help to rearrange them with another being the master?
Firmware is 490 on the multis.
The Multiplusses are 11 month old and bought in germany. The problem is that I won't get any support from the (official) seller. I already hat a faulty battery from them where they already didn't do anything, so my lawyer is on this :(
Thanks in advance.