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Quote from: qcda1 on March 30, 2026, 05:28:40 PMIf it can help, I just finished a Home Assistant custom component that can read pretty much all the Midnite Classic's registers and more and create corresponding sensors/entities in Home Assistant that can be used to control and chart stuff and feed the nice Sunsync power flow chart.
The custom component is in GitHub at https://github.com/qcda1/ha_midnite_classic
At installation, the user can select the values he want to be created as entities in HA from a total of 54 from which 11 are selected by default. The sampling period can be specified from 30s to 1 hour. The Classic must be on the same LAN than HA and a host name should be configured as this will be the name of the equipment in HA.
Here is a sample installation picture:
Regards,
Daniel.
Quote from: Wizbandit on March 29, 2026, 06:11:14 AMI think what Jim (Whizbandit) meant to say is, Stacked Rosies may not share equally IF in grid support mode. Even then if one is doing more than the other the lagger will throttle up as the leader gets towards its maximum so for example if your are in grid support and have a 10KW load one Rosie may run say 6KW and one may run 4KW but if you had a 3KW load one may run 2.5KW and one runs 500 WattsQuote from: Wirenut on March 11, 2026, 09:27:10 PMI have an off grid system installed with 2 Rosie inverters in parallel. The AC input is a 14 kW generator. When generator charging the Rosies don't share equally. Also, sometimes, not long after a generator auto start charge cycle is completed there is a fault code for AC overload on L1.
I've attached 3 pictures. One shows the FW in each component. Left and Right are two different MNGP2 displays. Master is the master Rosie. Rosie is the slave Rosie.
The others pictures are summary's of the inverters activity on the same day when a generator auto start occurred to charge the batteries. As you can see, one Rosie took in over 7,000 watts for long enough to take in over 49 kWh. The other Rosie shows all zeros for the same day.
I thought maybe the parallel threshold was set to high at 40% but I didn't think that affected charging, just inverting. I changed the parallel threshold down to 25%. At the time the generator wasn't running and total load on the inverters was about 1 kW. When I lowered it to 25% the slave inverter came on which seemed strange with such a low load.
Any ideas are appreciated. I don't know if this is multiple problems or if they are related.
Thanks for your help.
"Stacked" Rosie inverters do not share loads ( and apparently charging) equally when there is AC IN I'm told. Things like AC IN wire lengths may cause voltage drops between inverters and the balance issues. To properly balance AC IN operations (and SELL MODE, which is not yet available) will take "Closed Loop" communications between all inverters which does not happen with the present firmwares...
We can hope the engineers will find time to add this feature in the future but it does not seem to be effecting very many installations right now so it's low priority.

Quote from: Brucey on March 29, 2026, 11:35:10 AMWhich simply doesnt happen when using open loop and a shunt, because the shunt can detect much smaller currents.