All things Sunsynk (Deye, Inge, etc...)

DrJohnZoidberg said:
That entire screen doesn't do anything unless "Use Timer" is selected.

With it set up like that it's essentially just acting like a UPS and I would think it should always charge from grid, but I'm not 100% sure.
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That is how it has behaved for the last year as far as I can tell. Grid off - use battery, grid on - charge battery
 
_kabal_ said:
Sorry if this has been covered, but not finding anything obvious.

I have Sunsynk 5Kw inverter + Hubble AM2 5kw.

Today during the tail end of a 4 hour load shedding session (+-13:30pm), my battery hit 20% (The configured shutdown %), and obviously we lost power (my pool pump was running for 3 hours, with a few kettle boils)

I wanted to then see how long it takes to get back to 100%, but when I just checked at about 15:30, I noticed that the battery was on 18%.

Why did it not charge?

I found this thread - https://powerforum.co.za/topic/1595...grid-when-battery-has-reached-shutdown-level/ - so I went and set the shutdown to 15%, and this seems to have done the trick.


Is this expected behaviour, or is there something else at play here?

I would expect that even though it shut down, it would at least automatically start charging against once the power return.
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Let me have a go.

The Activate tick on battery setup screen helps to "force" the inverter to charge battery once it has shutdown. I would recommend trying that. ( If I understood training at Sunsynk correctly)
 
InusB said:
Let me have a go.

The Activate tick on battery setup screen helps to "force" the inverter to charge battery once it has shutdown. I would recommend trying that. ( If I understood training at Sunsynk correctly)
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That is my understanding of that function too. It "wakes" up a sleeping BMS.


Discussion here.

powerforum.co.za

Deye / Sunsynk / etc ... Activate battery ?

Any insight on the purpose of that option ? Supposed to be used when installing a new lifepo4 battery ... But for how long ? 1, 10 or 100 cycles ? What does it do precisely ? Haven't noticed any difference in current limitation for charging & discharging when option is ticked or not ...
powerforum.co.za powerforum.co.za
 
InusB said:
Let me have a go.

The Activate tick on battery setup screen helps to "force" the inverter to charge battery once it has shutdown. I would recommend trying that. ( If I understood training at Sunsynk correctly)
Click to expand...

Düber said:
That is my understanding of that function too. It "wakes" up a sleeping BMS.


Discussion here.

powerforum.co.za

Deye / Sunsynk / etc ... Activate battery ?

Any insight on the purpose of that option ? Supposed to be used when installing a new lifepo4 battery ... But for how long ? 1, 10 or 100 cycles ? What does it do precisely ? Haven't noticed any difference in current limitation for charging & discharging when option is ticked or not ...
powerforum.co.za powerforum.co.za
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So it’s something you do only if it goes to sleep (which is what happens when it switches to shutdown protection mode)?
 
_kabal_ said:
So it’s something you do only if it goes to sleep (which is what happens when it switches to shutdown protection mode)?
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I have left mine ticked, it sounds useful to me.

I have no idea if it has ever worked or been necessary but the inverter has shutdown a few times and has always charged the batteries (Pylontech) straightaway when the power has come back.
 
On a 12kW Synsynk, the max load per phase is 6kW. Anyone know if in an overload condition, does just the one offending phase "trip" or the whole inverter?
 
My Sunsynk is set up as "priority battery" in the system mode charge settings. During rainy conditions, say I want PV to cover house load first and then dump the balance into the batteries, selecting "priority load" would achieve this yes?

I'll then micro manage allowances for upcoming loadshedding sessions but for now, I want to limit grid usage and rather let pv cover the house, even if the batteries remain in a low SOC.
 
FlashSA said:
My Sunsynk is set up as "priority battery" in the system mode charge settings. During rainy conditions, say I want PV to cover house load first and then dump the balance into the batteries, selecting "priority load" would achieve this yes?

I'll then micro manage allowances for upcoming loadshedding sessions but for now, I want to limit grid usage and rather let pv cover the house, even if the batteries remain in a low SOC.
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Yes, that's what priority load is for
 
Speedster said:
Yes, that's what priority load is for
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Help me understand this. My system is set to zero export to ct. Saying that, excess power will go to battery, excess being greater than both essential+nonessential. In the case of loadshedding, non essential is off so no draw. I wouldn't see the point of having it any other way as regardless of essential/nonessential, you would need to draw from grid to supplement and it would be silly to draw for loads and using the solar to charge batteries, it's a net system.

Fully off grid I can understand.
 
greg_SA said:
On a 12kW Synsynk, the max load per phase is 6kW. Anyone know if in an overload condition, does just the one offending phase "trip" or the whole inverter?
Click to expand...

As I have discovered to my chagrin, it trips the whole inverter and takes a few minutes to reset.

the Spanish Inquisition is nothing compared to me when that happens....
 
Kosmik said:
Help me understand this. My system is set to zero export to ct. Saying that, excess power will go to battery, excess being greater than both essential+nonessential. In the case of loadshedding, non essential is off so no draw. I wouldn't see the point of having it any other way as regardless of essential/nonessential, you would need to draw from grid to supplement and it would be silly to draw for loads and using the solar to charge batteries, it's a net system.

Fully off grid I can understand.
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Don't ask me, ask Flash why he prefers priority battery.
 
I can imagine a use case for priority battery. You want to be sure you have battery for load shedding but you don't want to charge batteries from the grid. Especially if there's no one at home during the day so the loads aren't likely to be important.
 
Kosmik said:
Help me understand this. My system is set to zero export to ct. Saying that, excess power will go to battery, excess being greater than both essential+nonessential. In the case of loadshedding, non essential is off so no draw. I wouldn't see the point of having it any other way as regardless of essential/nonessential, you would need to draw from grid to supplement and it would be silly to draw for loads and using the solar to charge batteries, it's a net system.

Fully off grid I can understand.
Click to expand...

Speedster said:
Don't ask me, ask Flash why he prefers priority battery.
Click to expand...

If your battery is low, you have a LS slot coming up soon, you're not sure whether your PV will cover your house needs during the slot, then you will want to charge your battery from your PV before powering your house.
 
newby_investor said:
I can imagine a use case for priority battery. You want to be sure you have battery for load shedding but you don't want to charge batteries from the grid. Especially if there's no one at home during the day so the loads aren't likely to be important.
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Extended LS slots at night and rainy/overcast days really burns my butt.

Last night I had a 2.5 hour slot between 20h00-22h30 and then a 4.5 hour slot between 00h00 and 04h30 - usage was particularly high in the early slot due to late supper, visitors etc and I was forced to recharge the batteries from the grid between 22h30 and 00h30 or face the possibility of running out in the middle of the night.
 
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