SunSynk load schedules - and pulling from the grid...

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shadow_man

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Anyone else had any issues / bugs with this?

I have grid charge selected and SOC at 20% (all done from iOS app) - however battery is now 95% and it's still pulling from the grid...

I've tried turning:
a) grid charge off
b) all schedules off
c) lowering SOC from the 95% I had it on during substation issues, to 20%

However nothing works!

Next up I'm going to confirm if the values on the app match the values on the inverter...
 
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shadow_man

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Proof
 

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Mike Hoxbig

Mike Hoxbig

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Seems expected? Grid charge is to keep it going below the set value. In your case the grid is powering the load and the PV is going towards the battery. If you untick grid charge then PV should go to the load...
 
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shadow_man

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Inverter pic - so settings are making their way there!

Do I just try and power cycle this sucker now or ?
 

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shadow_man

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Mike Hoxbig said:
Seems expected? Grid charge is to keep it going below the set value. In your case the grid is powering the load and the PV is going towards the battery. If you untick grid charge then PV should go to the load...
Click to expand...
Correct - it should stop the battery going BELOW 20% (and keep it topped up, so if it does it remains at 20%)

It shouldn't be randomly still be on at 90 odd %!

Energy Pattern - Priority Load (and I may be wrong) in my mind means - send the PV to power the house first AND whatever is left over then powers the battery.

It shouldn't be ADDITIONALLY pulling from the grid to keep the battery topped up UNLESS the battery falls below that SOC charge - which in this case is 20% and not 90% odd that it's currently doing.
 
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shadow_man

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About at the point where I attempt to reboot the inverter. Schedules are off - SOC at 20% and we’re still chowing the grid while battery is 99%.
 
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shadow_man

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Firmware update done by Sunsynk - still the same issue.

@AchmatK tagging you here in case you have any input (fine if you don't, just saw an old post of yours on PowerForum discussing the topic).
 
itareanlnotani

itareanlnotani

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shadow_man said:
Inverter pic - so settings are making their way there!

Do I just try and power cycle this sucker now or ?
Click to expand...
If all the settings are the same, why split it out like that?

I'd try remove all of them first, see what happens (uncheck use Timer)
See what happens.

Or remove all and try just one from 00:00 - 23:59 8000 20%

No need to reboot, inverter will pick up the new settings and apply in a safe manner, may take a min or three, but no longer than about 5 min or so.
 
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shadow_man

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1000% broken - tried every single config (and this used to work).

Firmware update from Sunsynk and Sunsynk trying every combo --> still didn't work.
Firmware reset to factory defaults --> re-setup --> working with same settings (that didn't work before).
 
Mzezman

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shadow_man said:
1000% broken - tried every single config (and this used to work).

Firmware update from Sunsynk and Sunsynk trying every combo --> still didn't work.
Firmware reset to factory defaults --> re-setup --> working with same settings (that didn't work before).
Click to expand...
Sounds pretty bad, what model and firmware do you have?
 
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shadow_man

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Mzezman said:
Sounds pretty bad, what model and firmware do you have?
Click to expand...
One of the 8kW units - not sure of EXACT model and not too sure how to see firmware (I know Sunsynk tries to obscure version numbers and afaik doesn't publish them)...

Today I've had 3-4 alarms and the power tripping each time... I'm wondering if this inverter is faulty...
 

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Willie Trombone

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shadow_man said:
Firmware update done by Sunsynk - still the same issue.

@AchmatK tagging you here in case you have any input (fine if you don't, just saw an old post of yours on PowerForum discussing the topic).
Click to expand...
Is this not a case of non-essentials grabbing from the grid since panels are charging the battery - i.e. geyser, stove, etc.?
Also, bear in mind that if everything is wired to go through the inverter (essentials and non-essentials), it can all contribute to the overall load, so tripping might still be valid... that said, you know your setup better than anyone. Maybe time to get an expert to check it out...

*also... make sure the CT coil is properly installed so that you're not back-feeding into the grid.
 
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Willie Trombone

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shadow_man said:
One of the 8kW units - not sure of EXACT model and not too sure how to see firmware (I know Sunsynk tries to obscure version numbers and afaik doesn't publish them)...

Today I've had 3-4 alarms and the power tripping each time... I'm wondering if this inverter is faulty...
Click to expand...
Firmware versions can be seen on the settings page - there's a thread about them here: https://powerforum.co.za/topic/11687-sunsynk-5kw-8kw-and-12kw-latest-firmware-version/
You can have them updated by filling in an online form on the Sunsynk page. It takes a day or so for them to get to you.
 
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shadow_man

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Crimson & Blue said:
Is this not a case of non-essentials grabbing from the grid since panels are charging the battery - i.e. geyser, stove, etc.?
Also, bear in mind that if everything is wired to go through the inverter (essentials and non-essentials), it can all contribute to the overall load, so tripping might still be valid... that said, you know your setup better than anyone. Maybe time to get an expert to check it out...

*also... make sure the CT coil is properly installed so that you're not back-feeding into the grid.
Click to expand...
This install has been up for 4 months, first issues - it's been running flawlessly.

1.) The scheduler / pull from grid to top up once battery SOC reaches threshold was always working - then it broke and refused to work no matter what, the reset has fixed that - it's now behaving as it should (so some kind of bug the factory reset fixed)!

2.) I do split out some essentials / non essentials (e.g. geyser won't run if grid is down) - rest of house is essential power.

3.) Coil is installed and the only thing I do, is have the 20w pulse to the grid.

4.) First time I've ever tripped - and load at this point was only 5kWh at peak (and about 2kWh during the trip). So should be lots of leeway!
 
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shadow_man

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shadow_man said:
Today I've had 3-4 alarms and the power tripping each time... I'm wondering if this inverter is faulty...
Click to expand...
Looking at the manual:
F18 AC over current fault of hardware
This is an overload on the “Load Terminal”
Possibly caused by heavy surge current from air-conditioners.
This is also quite a common fault can also because by a battery issue but generally it's caused by an rush current to the Load. Switch on at the same time.
We have had experience where people have had F-18 faults during the night again it is often caused by an heavy in rush current too many items switching on together.
You need to separate your essential and non-essential load only have essential on the load connection and none. Essential loads such. As AC on the. Grid side. Remember the inverter sends power from both the Grid connection and a the load connection

www.sunsynk.org

Understanding Fault Codes

One thing to remember the inverters go through very stringent tests at our factory they are tested for everything as well as long soak tests when the inverter leave the factory it is working perfectly any faults that appear I'll probably due to installation issues. The fault code table is really...
www.sunsynk.org www.sunsynk.org

Yet my load never spiked beyond 5kW on a 8kW inverter (and during the alarm period this says it was around 2.5kW load...)

1657888111057.png
 
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