Hi All

I have a Deye inverter and recently I switched on the Push Notifications in the Deye Cloud App so I would know when the Grid went from Connected to Disconnected....
I have since then picked up that my "Grid" Connection goes offline randomly throughout the day when there is no loadshedding. I was wondering if this is possibly a setting on my inverter and also, if anyone else has experienced this and if so how this was resolved:

In this image you can see the "Connection" go offline and online randonly:

 

I can confirm that the Deye Cloud App and my Instance of Solar Assistant then show the Grid Offline:

 

I can see the Grid is Offline from my DB Board as the "Eskom" light is off:

 

Nothing on any of the other DBs has tripped and then the power will come back online....

My Prepaid Meter is on.... But no power is being used and the Power Level Indicator and the lightning bolt flash on and off:

Edited September 18, 20232 yr by MorphZan
Spelling

Funny enough, I had the EXACT same issue yesterday at my warehouse (also Deye inverter). Did a bit of Googling and many were pointing at the Grid Voltage being the possible issue. I then pulled a report on Solarman and I saw that we were having intermittent voltage issues, dropping to as low as 9/10v... This would cause the disconnection as there's min/max values set on the inverter.

I would say this is your most probable cause. 

Edited September 18, 20232 yr by Zweli

The Deye/Sunsynks are more sensitive to voltage variances from the grid and won’t connect unless they’re happy. With all the load shedding I’ve seen very unstable grid voltages and I manually disconnect my inverter in those cases

Interesting

Are you able to post screenshots of where/how you picked this up in SA?

 

 

Funny enough, I had the EXACT same issue yesterday at my warehouse (also Deye inverter). Did a bit of Googling and any were pointing at the Grid Voltage being the possible issue. I then pulled a report on Solarman and I saw that we were having intermittent voltage issues, dropping to as low as 9/10v... This would cause the disconnection as there's min/max values set on the inverter.

I would say this is your most probable cause. 

@madness_za Manually as in ?

I have an Axpert inverter, so it doesn’t automatically disconnect. So I flip the main breaker and usually reconnect an hour or so later by which point the grid has stabilized 

Edited September 18, 20232 yr by madness_za

On the Sunsynks (and presumably Deye as well since they’re the same OEM) you can adjust the grid connect/disconnect voltages in the Grid menu. I had to slightly lower mine to compensate for low post-load-shedding voltages from the municipality. Too low can damage equipment so it’s a good safeguard.

 

You could see if you can check the V-ac graph in the app to identify how low (or high) it’s going before the inverter disconnects.

 

Interesting

Are you able to post screenshots of where/how you picked this up in SA?

 

It's quite simple to do. On solarman do the following:

1. Click "export"
2. Data Source -> Device Data
3. Please select device -> *your inverter*
4. Data Type -> Detailed Data
5. Choose the date range
6. Click "export now"
7. Open the excel spreadsheet
8. Look for the column "Grid Voltage L1L2" 

All the values are tabled there for the date range your selected. 
 

I'm assuming this can only be done from the browser?

I have found the Grid Voltage Graph in Solar assistant.

Now to work out if the issue is my side or from Eskoms side?

Edited September 18, 20232 yr by MorphZan
Spelling

How do you think a grid voltage issue would be on your side? 

@madness_za I can see every now and then my system appears to feed back into the grid which I'm sure it shouldn't be doing and this could be causing the prepaid meter to have an abnormal trip. 

 

 

@madness_za I can see every now and then my system appears to feed back into the grid which I'm sure it shouldn't be doing and this could be causing the prepaid meter to have an abnormal trip. 

 

Good that you found the reason to trip with the export. You are lucky that it resets without munic intervention after the meter locks out suspecting tampering. 

 

Good that you found the reason to trip with the export. You are lucky that it resets without munic intervention after the meter locks out suspecting tampering. 

I contacted Conlog with the error i was getting and they got back to me saying:

"The LLr is a reverse energy detection. We can assist by providing you with tokens that will prevent that from happening. To do those tokens we require permission from your service provider/municipality. The tokens are adjusting settings placed on the meter at the request of our customer. Any changes done without their permission will be viewed as tampering. There are some municipalities who have given us blanket permission to do the tokens. Please provide your meter so i can confirm if your municipality is one of those.

Once we get permission we require information that you can get off the meter by using the shortcodes provided below;

Please use the shortcode provided below:

Run #100# for the meter number.

Run #030# for the supply group code (SGC).

Run #006# for the tariff index(TI).

Run #005# for the Key Revision Number."

No dropping of the Grid today other than the scheduled load shedding ... hopefully this "issue" has resolved itself.

 

I have a Deye 3 Phase 12K and have observed the exact same 'grid disconnected' behavior on a regular basis - I've reached the point where I just live with it.

Can only presume that it's a safety meausure based on grid input voltage.

 

I have a Deye 3 Phase 12K and have observed the exact same 'grid disconnected' behavior on a regular basis - I've reached the point where I just live with it.

Can only presume that it's a safety meausure based on grid input voltage.

Grid voltage or frequency out of range probably. 

The issue returned again today. Was chatting to someone and he mentioned he had the exact same issue and this was resolved by updating the firmware on his inverter.

 

 

 

On 2023/09/22 at 2:32 PM, Chris_S said:

Grid voltage or frequency out of range probably. 

So if I change the range of the Grid Voltage/Frequency on the inverter it might solve this issue?

Have you tried changing the "Grid trickle feed" value yet?  I'm not sure if that's what it's called on Deye, that's the name in Sunsynk inverters.

I think the default is 20W, basically it tries to always pull that minimum amount from the grid.  When you have a big load that suddenly turns off there can be a brief period where the inverter sends power back to the grid.  The trickle feed helps buffer against that.  If you don't have big loads one can often get away with 20W or less.  In my case I have a pool pump and an old aircon, I've had to bump mine up to 70W to prevent the prepaid meter turning off.

Try upping that value by 10 or 20W at a time and see if it helps.

1 hour ago, Hyarion said:

Have you tried changing the "Grid trickle feed" value yet?  I'm not sure if that's what it's called on Deye, that's the name in Sunsynk inverters.

I think the default is 20W, basically it tries to always pull that minimum amount from the grid.  When you have a big load that suddenly turns off there can be a brief period where the inverter sends power back to the grid.  The trickle feed helps buffer against that.  If you don't have big loads one can often get away with 20W or less.  In my case I have a pool pump and an old aircon, I've had to bump mine up to 70W to prevent the prepaid meter turning off.

Try upping that value by 10 or 20W at a time and see if it helps.

Thanks - it is set to 20 at the moment

 

I will up it to 30 shortly and see how it goes for the weekend!!!

 

 

Hi there, I am having the same Issue with you. This happens with my 16k Hybrid Deye inverter when the deye sells more than 10kw back to the grid. It automatically disconnects. I never had this issue with a single unit. but with parallel, it happens quite a lot even if the firmwares are up to date. Any update or tips of how to fix this?

On 2024/01/17 at 5:53 AM, dzx69 said:

Hi there, I am having the same Issue with you. This happens with my 16k Hybrid Deye inverter when the deye sells more than 10kw back to the grid. It automatically disconnects. I never had this issue with a single unit. but with parallel, it happens quite a lot even if the firmwares are up to date. Any update or tips of how to fix this?

I set my trickle to 30w and this stopped the meter from dropping. 

How did u solve the d

Grid dropping s M having the same issue. Do get in touch [email protected] 

On 2025/02/18 at 2:16 AM, Patel said:

How did u solve the d

Grid dropping s M having the same issue. Do get in touch [email protected] 

I set my trickle to 30w and this stopped the meter from dropping.