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Beginner's Guide to ElectroDacus

Beginner's Guide to ElectroDacus 0.61

The ElectroDacus system takes care of solar charging, lithium battery monitoring, and optionally, diverting excess solar power for other uses. Its modular components can function as a BMS, a charge controller, and a thermal controller. It was designed for DIY systems, and is highly customizable — which definitely gives it a learning curve, but a very worthwhile one.

This guide covers the core ElectroDacus components, and everything else that connects with them to build out a complete system.

New in Version 0.61:
  • I forgot to add page numbers in V0.6 after adding the table of contents.
  • A couple of minor additions & corrections.

New in Version 0.6:
  • Clarified and fixed some errors in the descriptions of advanced parameters,
  • Added a table of contents,
  • Added a section on mobile considerations,
  • Added a dedicated section on controlling Victron devices,
  • Added a section on understanding the advanced parameters,
  • Expanded the shunt calibration instructions,
  • Added more pictures and diagrams,
  • Multiple minor additions and changes.
Author
Oberon
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Latest reviews

Excellent! Includes very necessary documentation on the SBMS0 system.

I am considering using the SBMS0 in my travel trailer. I was getting very frustrated with the very limited documentation on the manufacturer's web site. This "Beginner's Guide" includes much of the information that is missing from the official documentation.
Thank you!
Oberon
Oberon
Happy to help, FoxMeister! Thanks for the positive review!
Very useful guide, thank you.
On your 12v system diagram (pg 31) you have the breakers after the DSSR20. Would they not be better before the DSSR20?
Oberon
Oberon
Hi Reeb, thanks for the review! I've seen people put breakers both before or after the DSSR20, I guess it depends where you think the risk of a short is greatest in your system, and/or what you want to be able to turn off if you're using the breakers as a disconnect. That particular system was designed by FilterGuy, if you like you can message him and ask him his thought process behind it!
This was fantastic! Super helpful. The 24V diagram at the end is basically exactly what I'm doing, but throwing in direct support for 24V appliances and not connecting to van alternator. I think you may have left out the PV BMS cables on the 24V diagram? Otherwise fantastic, thank you for producing this!
Oberon
Oberon
Thanks for the great feedback. The sample circuit diagrams are from FilterGuy's I/O Summary: https://diysolarforum.com/resources/electrodacus-sbms0-i-o-summary-chart.112/ I'm not sure which PV BMS cables you're referring to that are missing, the PV is controlled by EXTIO6 in that diagram. Can you message me with more specifics?
Great work Oberon and Team. I think "Beginners" is misleading. Everyone should read this as the 'explanatory' note to lots of stuff not really covered well in the Manual.
I cant count the no of times I've messed up defaults for IO3/4 Type1/2 .. Loads/Charging !
Oberon
Oberon
Thanks very much, Peter! Yes the IO3 & IO4 being set as Type 2 and Type 1 is definitely confusing!
Great resource, prompted the immediate order of a SMBS0 wifi etc from Dacian. I've admired the design and concept for years, your document gives me the information required for many different implementations - thanks.
Oberon
Oberon
Awesome, I'm happy to hear that it helped you out!
WOW! Simple and well written.
Oberon
Oberon
Thanks JC, I appreciate the review!
I had been looking at Dacian's creations for the last 2 years. Didn't understand much. Now, after reading your paper, I see the light. Thank you v e r y much.
Oberon
Oberon
Thanks R -- great to hear it was helpful!
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