Hi I am in France but speak English.
My SI6.OH-11 keeps jumping to 60Hz.
I Have recently purchased a New SI6.OH-11. So I can add AC Coupling to my 9 buildings Sustainability Community Project system here in Normandy, France
I have been using APC 5000va UPS Inverters.
My Power sources are :- 5kW on PV Trackers, 90amps at charge rate 56vdc, Tristar MPPT & Midnite Classic 200.
3 off Hugh Piggott design Wind Turbines with a normal 3.4kW, 66amps. These 3 wind turbines have 3 Tristar Controllers set for PWM Dumping to 6kW of heaters.
Max DC Charging can therefore be 156amps into my 1100ah batteries.
I am now installing AC Coupling with Static PV arrays. At present I have 2.5kW of PV coupled to a SB3800 which is set in Island Mode, Off Grid..
I keep re-setting the SI6.OH-11 for, ….. Off Grid Mode, 230v50Hz, VRLA, 48v, 1100ah, PV Only,
We do not have a generator.
I have contacted the SMA Helpline, they showed/told me on the telephone how to reset the SI6 back to factory settings. The SMA Specialist said, “You have to much DC Coupling” and then said “The SI does not like Over Voltage on the DC”.
When I do the setting up process for the battery sensor process, and apply DC coupling the SI6.OH-11 Inverter goes straight to 60Hz 230v output.
Obviously certain electrical Items in our buildings will not work on 60Hz.
I do not think that the DC coupling is the problem, do any of the Forum members have any solutions please.
Please remember that this was a very expensive Inverter for us, as we have very little money, but we did think that this SI 6 would take us into the Future of AC Coupling.
Thanks for any help,