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Hansa

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Everything posted by Hansa

  1. https://solar-assistant.io/ Best investment i could make for our solar install. Excellent software.
  2. Try carbonite classifieds, networking section
  3. In advance I can advise you to rather go for pylontech. My installer didnt even know the inverter & batteries werent communcating. Shoto comms standards seem to vary between batteries. If I had the option I would have gone pylontech. See my recent thread for further info. Although if you trust your installer enough ... maybe
  4. Thanks That's unfortunate though. So much potential
  5. Seems we'll just have to use the SBU option with solar assistant controlling things. It cuts off grid completely in this mode it seems from the graphs
  6. The loads were split over 3 phases since the building already had 3 phase. Inverters matched accordingly with scope for the future. But no where close to 500a
  7. 3 x 7.2kw kodak max inverters All connected to the entire bank of 4 batteries in parallel
  8. PS it's a 3 phase system, with 3 inverters. And 4 batteries in parallel
  9. Hi there This is currently what's happening with our system. Seems like there's so much potential that could be used more profitably. Once the batteries are charged up it seems the solar energy isn't being fully harnessed. Obviously the load will increase when we move into the building, but since it's a small business there won't be ovens etc drawing huge loads continuously so there should still be more than enough to feed back into the grid. 3 x kodak max 7.2kw inverters. 4 x shoto SDA10 48100 5.12kwh Would feeding excess power into the grid be possible with these inverters?
  10. Just to confirm, if the batteries are in parallel the victron shunt would also work? If we don't get things sorted here after a few months, may end up going that route. Thanks for the suggestion
  11. I would have no idea what to do with this. I'll leave these things to the experts.
  12. Your message is highly appreciated, and has clarified many aspects for me. Thank you for the detailed response and your time. We would want a good balance between battery longevity and maximising benefit, as everyone else. Hence it seems prudent to use the 45v to 56.4v values as suggested in the charge /discharge voltages of the manual, rather than anywhere near to 2.4V & 3.65V per cell. I'm trying to work out 30% and 80% SoC for input into solar assistant emulated BMS for now. Would it be these 45 and 56.4 values that I work within? According to my calculations this would be 48.42v and 54.12v. My concern is that 54v is the float charge so is that suitable to apply for 80% SoC...
  13. Hi all, Been reading quite a bit on here regarding Shoto SDA10 48100 5.12kwh batteries. We've had an installer do Kodak Max 7.2Kw inverters with these Shoto batteries. Unfortunately I learnt later that these dont communicate at all. Would have gone the sunsynk + hubble/pylontech route had I known this! ------------------------ So now we are trying to get the system communicating to some extent. For that reason we purchased the solar assistant system. Have the shoto manual , its a newer design which slightly different terminals (vertically orientated in a line as shown in the manual), CAN comms and RS485 (no rs232). Dip switches are also different compared to previous threads which I had seen (for 4 batteries, master has 5&6 up!) . All in the manual which you can see here. With the dip switches correct, and the cascading batteries connected to master RS485B to the battery 2 RS484A, and alternating so on, with the CAN port DISCONNECTED, then ONLY did we get some 'info' being transferred to the raspberry pi. Unfortunately, it says "invalid data recieved". The interesting part is that its at least transferring data now. SO guys with Shoto batteries trying to get comms, make sure your dip switches are exactly as stated in your specific batteries manual. They seem to be changing things between revisions of the design. And hence confusing people. Hope this helps some of you with Shoto SDA10 batteries. Pierre has been very helpful in trying to rectify the situation, but for now it seems that the data is in a new format and hence cannot be read. --------------------- Interestingly the RS485 pins listed in the manual are different from other batteries and previous shoto designs, says pin 8 is RS485B. However, we had used the old cable with Pin 8 as ground, which is providing some data (albeit invalid). According to Pierre this means the manual is wrong. Since if the ground was as per the manual then it would not have worked at all. THen in 4.2.2. of the manual they contradict themselves by showing pin 8 being the ground. Strange indeed. ---------------------- Now to the main reason why I'm posting here, Please see the battery specs below. They no longer specify 15s or 16s so I dont actually know what this battery is. Perhaps they only have one model now. Especially since previous manuals had separated the two. THis manual has only one type. My battery settings on the inverter (USER option selected due to no comms): We currently are using emulated BMS to try to maximise benefit from the system, till solar assistant gets the data processing sorted. 1. What should the 30% and 80% SoC be set to based on the above manual? 2. Do these battery settings look optimised? Especially the 'to grid' and 'back to battery' voltages. Although I suppose solar assistant will handle this now.
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