Solis inverter settings

micks_address

https://www.boards.ie/discussion/comment/123989632#Comment_123989632

Is it the breaker in your consumer board that tripping for the inverter?

What size breaker do you have for the inverter power supply? Check out the solar thread for parasitic resistance.. I had to get a new breaker put in as I often got breaker tripping after heavy rain

https://www.ftenergy.ie/parasitic-capacitance-troubleshooting

This is what I had fitted

Cheers

Mick

Hurrache

https://www.boards.ie/discussion/comment/123989825#Comment_123989825

Yeah, the consumer board, mine seems pretty similar to yours. Certainly plenty of heavy rain overnight no doubt and it was around 4:30am when it tripped.

First time it was at the start of October and can't remember the weather at all then but it was early evening and didn't notice until the next morning when checking what was in the battery, the alarm notification in the app was off by default.

Ha Long Bay

https://www.boards.ie/discussion/comment/123990560#Comment_123990560

There is a previous thread on this.

I was having the same issues where it would trip during heavy rain. Got the RCBO replaced with a 100ma instead of the 30ma and I have never had the issue since.

https://www.boards.ie/discussion/2058326679/parasitic-capacitance

Hurrache

Cheers lads, just noticed mine is a 30ma compared to Mick's picture and what you recommend Ha Long Bay, looks like 100ma is the route for me.

micks_address

This is where I ordered mine

https://www.dungannonelectrical.co.uk/product-detail?prodref=DS201+B32+A100&category=de-root&description=%20A100ABB%2032A%20100mA%202%20Pole%20RCBO%20-%20Type%20A%20(C%20Curve)%20GivEnergy%20Certified

micks_address

Noticed my inverter was pulling over 100 watts from the grid after dark..did a bit of googling and found this.

https://diysolarforum.com/threads/solis-inverter-drawing-0-112w-from-grid-at-night.107375/

Set battery saving to disable. Only 100 watts but all adds up.. have lots of batter so don't want to be drawing from grid

mustyrocks

https://www.boards.ie/discussion/comment/123990792#Comment_123990792

Battery saving option keeps your battery from going into sleep mode when the battery gets too low.

micks_address

https://www.boards.ie/discussion/comment/123994916#Comment_123994916

thanks if you have discharge limit of 20% on the battery what happens when it reaches 20%? i asked solis support via a ticket what does and this was the reponse

Hi ,
The Battery Saving setting controls how much the inverter protects your battery. When it is enabled, the inverter stops discharging the battery earlier so the battery stays healthy and lasts longer. When it is disabled, the inverter allows deeper discharge so you can use more of the battery, but with less long-term protection. 

mustyrocks

https://www.boards.ie/discussion/comment/123994940#Comment_123994940

My understanding and experiece to date is that I have set my SOC to 20% and a forcecharge of 15%. In most cases I see a battery drain of 2% percent so around 18% SOC overnight. Hasn't had to be force charged. So in theory you can have battery saving disabled at same 20% and only have a small drain overnight and not risk the battery going into sleep mode. But that's just my experience. At lower SOCs it might be much different.

micks_address

something i noticed this morning - ive a discharge slot on my inverter. To discharge from 12 to 1am down to 30%. So i assumed this would only discharge anything if i was above 30% which seems to be the case. Last night though I wasn't above 30% and it didnt discharge but i noticed during the hour my house load was covered from the grid. Kind of annoying behavior. Will see if i can toggle the slot on/off from home assistant using an automation instead.

The night before i had 40% or something and it did discharge/export and cover the house load while exporting

Midlakelands

https://www.boards.ie/discussion/comment/123995572#Comment_123995572

I think this is by design, for the period of the discharge once the target SoC is reached (or is under it) I believe the idea is that you might want to 'save' the battery for a later time perhaps when energy prices are higher. it would be nice to have the mode switch off once the target SoC is reached but once the logic gets more complex you might just want to hand control of it all over to home assistant or the new Solis Ai agent that apparently also does all of this preplanning based on usage. It's rolling out in Europe right now https://www.solisinverters.com/global/conews/Solis_AI_Launches_in_SolisCloud_gl.html

micks_address

https://www.boards.ie/discussion/comment/123997484#Comment_123997484

yep its doing as designed.. anyone have access to the AI function yet? ive got the solis sensor api integration working with home assistant but im not seeing the control for discharge slots.. well i can see them but doesnt seem obvious like toggle on/off

ptogher14

Hi mick, I'm pretty sure I saw the toggle function there. I carried out this integration over the weekend and have home assistant setting the charging current before the charging window.

micks_address

https://www.boards.ie/discussion/comment/123998183#Comment_123998183

i think this integration looks a better bet for solis control

https://github.com/mkuthan/solis-cloud-control

I started with solis sensor.. but its control section doesnt look great.. actually you might want both.. sensor for sensors.. and control for control.. i tested toggling on/off the discharge slot and it worked with solis cloud control.. will put an automation around it.. if battery percentage > 40 enable slot.. will adjust the slot as get more into spring/summer

ptogher14

Yes, I ended up with both. I'm not sure which one had the toggle. One if the integrations had double the entities of the other.

micks_address

https://www.boards.ie/discussion/comment/123998378#Comment_123998378

You can run both side by side, can disable polling on the control one if it's causing app time outs

ptogher14

Folks, should the battery appear as a tab in the device menu?

micks_address

In my app

ptogher14

Thanks Mick, found what I was looking for, there is a battery tab but it's not glaringly obvious.

ptogher14

Folks,

Looking to pick your brains again. I seem to be having an issue where the charging current is capped. I noticed this today where consistently the system was generating 4 - 5kw but only sending 1.5kw to the battery and more to the grid. This appears to have happened since I plugged one of the comms cables out.

During the initial setup I found one of the supplied comms leads faulty, giving a CAN fault. I replaced this with a temp lead at the temp and all worked well, with batteries charging up to 5kw (3no 5kw dyness batteries). I got the chance to do a permanent job on the patch lead the other evening and it appears the issue is there since.

There are no faults anywhere, all LEDs are healthy but battery charge is stuck at 1.5kw. I charge at night and have the max A set at 90A. Although when I go into the battery menu the BMS has the max charge set at 30A.

Any thoughts? I'm thinking there is a BMS fault and the inverter is defaulting to one battery. Also, I have read this 30A value is a dynamic value and will change with temps, SOC etc. Does anyone know if this is the case? There doesn't seem to appear to be anywhere, where you can confirm the inverter is seeing all three batteries.

As always appreciate any feedback.

micks_address

Hi folks,

Just wondering my inverter seems to always pull about 32 watts from the grid. It's a tiny amount but curious why? Is it to check grid connection?

Thanks

Mick

mustyrocks

https://www.boards.ie/discussion/comment/124004654#Comment_124004654

It's keeping your inverter alive and battery I would assume.

Avns1s

https://www.boards.ie/discussion/comment/124001847#Comment_124001847

It looks like this capping of the charge rate is being caused by the lower temperatures. There is much discussion on various fora about in in the last few days.
If the battery cells are less than 10 (or 15 degrees - looks to be conflicting knowledge on the temp), then the BMS in the Dyness battery, caps the max charge capacity. I have 20Kw of Dyness batteries and the max charge these days is 20A or 2 Kw. This seems to equate with your 15Kw of batteries charging at a max of 1.5 Kw.
The batteries I have, are fitted with heating pads that are supposed to keep the temp above -20c, the temperature at which they seemingly stop charging and discharging completely. There is talk of a firmware update to be released by Dyness in the coming week or so that will activate these heating pads once the battery cells drop to 10C. This is supposed to solve the problem of the BMS capping the max charge.
So the good news is there wouldn't appear to be anything with your battery, its BMS ot the cabling.
Your batteries will have to be connected to wifi and the Dyness app for the firmware update to be applied.

ptogher14

Hi Avns1s, I appreciate the feedback. I think my problem is two fold. The low temp was a factor and I appear to have faulty comms between battery two and three. I just have to pinpoint the exact point of failure. I also have the the batteries you are referring to so good to know the logic in them. Do you mind pointing the direction of these other forums?

Query on the dyness app, I have the dongle installed in the master battery, but it only appears to pick up the master battery. Do you know how to add the other batteries. I have read the dongle should only be installed in the master battery.

Avns1s

https://www.boards.ie/discussion/comment/124012007#Comment_124012007

The Irish Solar owners FB page is one place for a lot of info. Some talk here about the Dyness and the firmware upgrade:
https://www.facebook.com/groups/irishsolarownersgroup/posts/2020372065498117/

On the app….. you can only add the master battery as this is "in charge" (no pun intended!) but you should be getting all the info for both batteries through it. For example, when I go to "devices", and go into my master one that is online, I can see info for temp etc for both batteries.

mustyrocks

https://www.boards.ie/discussion/comment/124010848#Comment_124010848

I have a Green Solutions E10 12.8kw battery. The built-in heating keeps it around 12c so far all the way down to 0c outside temp so far. It does have its insulation cover on and it's in a shed so that helps too. Haven't noticed a dip in charge as yet but it is only charging per my setting of 30amps over 7 hours anyway so not being taxed too much.

ptogher14

Ah i see the little select arrow on the BMS tab. Both batteries are there. Thanks