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Geoffrey Schwark avatar image
Geoffrey Schwark asked

Quattro 12v 5kw Orion 2 jr bms

I am asking the community if anyone is using the Orion bms 2 jr in their inverter setup. I know it works well with the can bus on the Quattro from what I have read. Trying to validate if it works well from someone with experience of this specific bms integration. Thx

BMS
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Justin Cook avatar image Justin Cook ♦♦ commented ·

Moved to "Modifications Space" for discussion regarding non-supported systems and components.

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chris-knauf avatar image
chris-knauf answered ·

Did you ever get any clarity on this? I am trying to integrate a Phoenix inverter into my Orion Jr's CAN network and think I need some sort of gateway...

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Geoffrey Schwark avatar image
Geoffrey Schwark answered ·

Chris,

no I did not and based on some info I got from another engineer I went with a less expensive BMS that is not can integrated.

good luck.

Geoffrey

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cinergi avatar image
cinergi answered ·

I'm successfully using Orion Jr 2 with my split-phase quattro setup & cerbo gx. The cerbo is required because that has the CAN bus on it (the quattro's don't).

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djingis avatar image djingis commented ·

How much data from the Orion BMS can you see on the Cerbo GX? Are you able to see individual voltage of each cell?

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cinergi avatar image cinergi djingis commented ·

You can't see individual voltages (at least not out of the box). You see SoC, DCL, CCL, CVL, Health, temperature, and I think that's it. The advantage is that it controls the charge current across all the Victron equipment. The downside is there's no built-in way to go from Absorb to Float. There's only Bulk and Absorb. I think I'm going to need an external way to influence the separate "charge ready" signal which can have different voltage parameters so that I can treat bulk like float and have a manual absorb or something. That's OK for LiFePO4 ... not so great for many other types of cells/batteries.

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shaneyake avatar image shaneyake djingis commented ·

You can also get lowest cell voltage and cell number and highest cell voltage and cell number.


The Absorb to Float isn't a problem for LifePO4 as you do a constant current/constant voltage charge anyways which the BMS can control with no problems.

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cinergi avatar image cinergi shaneyake commented ·
Unfortunately Absorb vs. Float is still an issue with LFP. If you set the CV to 3.4 volts per cell (so 54.4 volts in my case), the last ~30% of the charge is quite slow. I set my CV to 55.2 (3.45 volts per cell) and that charges nice and quick ... the only downside is that I end up floating a little high. But I don't hold float very long very often (I'm usually on solar so I only hold 100% SoC for several hours a day, max). I really wish I had a way to have separate float and absorb stages each with their own voltages.
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