On the goodwe if the min charge is 80% it stops discharging at 79%, always one % lower. It probably checks for < x% to stop.

Overnight it will then recharge every 6 hrs or so to keep at 79%..

The point is I don't think it's the BMS, is it not the inverter itself that requests charge?

Edited August 31, 20205 yr by FixAMess

@Johann1982

I take it that the aux restarting issue had been completely resolved now. 

Thinking of putting the rest of my loads back on the aux of its fixed. 

I just wish that the inverters would register a fault when it loses AC power. According to the manual you are supposed to get an F35 alarm. Seems like a bug since these alarms are not being registered...

1 hour ago, Heinds said:

I just wish that the inverters would register a fault when it loses AC power. According to the manual you are supposed to get an F35 alarm. Seems like a bug since these alarms are not being registered...

Bump this post on their support page. 

I've requested an update on this issue on there and contacted their local support rep Bashir and no response yet. 

https://www.sunsynk.org/forum/techical-support/is-there-any-notification-when-grid-power-goes-off-and-inverter-provides-power-from-batteries

Edited September 3, 20205 yr by Achmat

Hi All, have any of you noticed that the consumption power reported by the inverter on the Solarman app does not seem to be correct?  I have re-pasted my post from the Sunsynk forum below.

 

 

Please check my logic. Solar produced 13,8kwh + Battery Discharged 0,00kwh - Solar sold 9,1 kwh + Grid purchased 6,5kwh - battery charged 0,00kwh = 11,2 kwh (Theoretical kwh used by load circuit)

 

Why does Solarman report consumption as 29,4kwh? (refer screenshot below). Based on past experience my load circuit only use between 11 - 15 kwh in a 24 hour period. How is this discrepancy possible? (past experience is from an old Voltronic inverter which used to run same backup circuit. The 11 - 15kwh used in 24 hour period were corroborated by an effergy energy clamp on same load wire with 2 years data to back it up)

 

After engaging with Solarman on the question and a lot of testing later their feedback was that there is nothing wrong with their algorithm and this has to do with how the inverter reports the data. The suggestion was to take it up with Sunsynk. So here we are.

Why does the Solarman app show battery discharge of 13kwh.

Have you tried the Solarman Smart app? 

But I do feel that it's the way the inverter is sending out data to Solarman and its not configured correctly. 

Sunsynk should just create their own monitoring platform and not rely on a third party solution. 

Edited September 4, 20205 yr by Achmat

How would you guys rate the Sunsynk 8kw unit?  I'm contemplating swapping out my Axpert King for the Synsynk 8kw unit

 

38 minutes ago, Bloubul7 said:

How would you guys rate the Sunsynk 8kw unit?  I'm contemplating swapping out my Axpert King for the Synsynk 8kw unit

 

Very happy with my choice. Support could be better. Can't comment on other brands as I've not used them. 

It's a true hybrid and does everything it says it does. I don't think anything can compete in its price range. Practically plug and play with nothing extra needed 

I went for the 8kw inverter as I wanted my whole house on the inverter. 

I compare my consumption vs pv produced that is reported by the inverter to what usage my elec meter shows for the month.

If you assume that battery power used/consumed takes the same amount of pv to recharge then you can ignore the battery usage as well.

I find the results to be within 3% of each other...

7 hours ago, Achmat said:

Why does the Solarman app show battery discharge of 13kwh.

Have you tried the Solarman Smart app? 

But I do feel that it's the way the inverter is sending out data to Solarman and its not configured correctly. 

Sunsynk should just create their own monitoring platform and not rely on a third party solution. 

Yes I have the same question on why the app (SolarMAN Pro) shows battery discharged.  I did not even use the battery that day.
 

I am running the Solarman Smart app for comparison as well. Consumption power also Indicated the 29,4 kWh which is definitely wrong. 
 

I agree Sunsynk should develop their own monitoring and control portal.  Apparently it is in development as we speak. There is definitely some anomaly with the way the inverter reports information to SolarMAN. All the information on the local inverter screen makes sense and is accurate. 
 

BTW I found a setting on the SolarMAN app “Calculation of Electrical Energy”. Default settings for Production, Consumption, Grid Feed in  power etc , is on “based on device data”. I changed the consumption field to “based on calculation”. Two days running like this and my consumption data reported seems to be in line with expectations and my historic usage readings. Perhaps that is the fix for now. 

17 minutes ago, Halcyon said:

Yes I have the same question on why the app (SolarMAN Pro) shows battery discharged.  I did not even use the battery that day.
 

I am running the Solarman Smart app for comparison as well. Consumption power also Indicated the 29,4 kWh which is definitely wrong. 
 

I agree Sunsynk should develop their own monitoring and control portal.  Apparently it is in development as we speak. There is definitely some anomaly with the way the inverter reports information to SolarMAN. All the information on the local inverter screen makes sense and is accurate. 
 

BTW I found a setting on the SolarMAN app “Calculation of Electrical Energy”. Default settings for Production, Consumption, Grid Feed in  power etc , is on “based on device data”. I changed the consumption field to “based on calculation”. Two days running like this and my consumption data reported seems to be in line with expectations and my historic usage readings. Perhaps that is the fix for now. 

This is mine from the Solarman Smart app on the screenshot below. 

My data from the inverter touchscreen. 

Battery Discharge = 10.8kwh

Battery Charge = 7.0kwh

Solar production = 23.5kwh

Grid buy = 24.5

Solarman is not reporting the battery charge and discharge values. It is however recording the correct values in the detailed reports. 

On 2020/09/04 at 9:07 PM, Achmat said:

This is mine from the Solarman Smart app on the screenshot below. 

My data from the inverter touchscreen. 

Battery Discharge = 10.8kwh

Battery Charge = 7.0kwh

Solar production = 23.5kwh

Grid buy = 24.5

Solarman is not reporting the battery charge and discharge values. It is however recording the correct values in the detailed reports. 

Achmat, under "Plant Settings"-"Calculation of electric energy" which settings or options did you select? Based on device or based on calculation?

27 minutes ago, Heinds said:

Achmat, under "Plant Settings"-"Calculation of electric energy" which settings or options did you select? Based on device or based on calculation?

The screenshots are based on device. 

I chafed it over the weekend to calculation method. 

Hi All

I am considering the Deye as it seems like great value.

A friend of mine installed a Goodwe which is a lot more expensive. 

With the 4.6kW Goodwe, the inverter bypasses all load to grid supply (Eskom) if the load exceeds inverter capacity.

Ie, if the load reaches 6kW, the inverter doesn't trip but simply bypasses itself and the load is fed 100% from the grid.

Does the Deye do the same or does it shut down (trip) if the load exceeds the inverter capacity?

Thank you

In my testing, it seems to supplement from grid when inverter power is exceeded. I am not sure where it will trip though 8.8kW max AC, or 11.5kW max passthrough - I have not tested so far.

The Goodwe has a rated 40A pass through current, the sunsync 37A.

There's no on-off (switching from one to the other), the hybrid inverters will supply on both sides to their rated capacity. I.e, the goodwe will push 4.6kW on the essential load, from pv and/or/mixture, grid, and max 40Ax230V (=W) through the bypass AT THE SAME TIME...When the draw (A) on either of those is exceeded for a period , the inverter will trip, usually on start-up of a motor, in thd household a hairdryer..I have seen  8kW running through my goodwe inverter ,spread across the essential load and pass through side including grid and PV input..

 

Edited September 21, 20205 yr by FixAMess

The Goodwe has a rated 40A pass through current, the sunsync 37A.

There's no on-off (switching from one to the other), the hybrid inverters will supply on both sides to their rated capacity. I.e, the goodwe will push 4.6kW on the essential load, from pv and/or/mixture, grid, and 40Ax330V (=W) through the bypass AT THE SAME TIME...When the draw (A) on either of those is exceeded for a period , the inverter will trip, usually on start-up of a motor, hairdryer..

The "5kW"  in "5kW Deye" refers to the PV,battery (DC) to AC current conversion capacity, not the total power that can be "carried" by the inverter which on the hybrids includes grid "bypass" power, but the point is that it's at the same time, not pv or grid, one-off type thing.

I believe the sunsync/Deye will work.in the same way...

I don't know what the price difference is between the deye and sunsynk, but there's massive local , forum support on the sunsync and it has a better visual input than the Deye ( as per forum.posts). Take the plunge and go Sunsynk...

 

Edited September 21, 20205 yr by FixAMess
Fixing

@VassenHi, yes Aux restart no longer an issue after latest firmware mod.

On 2020/09/01 at 6:44 PM, Achmat said:

@Johann1982

I take it that the aux restarting issue had been completely resolved now. 

Thinking of putting the rest of my loads back on the aux of its fixed. 

Yes, no more restarting issues. Everything is running smoothly. 

On 2020/08/20 at 12:51 PM, Halcyon said:

Hi Johan, do a voltage check between load neutral and earth when AC grid is off.  One of the Sunsynk manuals specifically states you will read 110v with a floating neutral unless resolved with a relay.  My load output neutral earth measured +- 50V when in island mode but this was resolved when I installed a relay.  The 50V gave me a little bite when touched. Surprisingly my E/L did trip when you press the test button without relay installed but I was told that is not a reliable test for safe functioning.  The Sunsynk definitely does not have an internal relay doing the bonding job like a Victron.  I bought a R100 40A NO relay from ACDC.  It is so small I fixed it with cable ties inside the inverter.  As you know there is a lot of space inside once you open the front cover.

@HalcyonDo you perhaps have the product code for that relay? Voltex this side is useless and would like to order a couple to use with my future installations.

This is the one I am using:
https://www.acdc.co.za/pages/product-individual?CGB-1C 230VAC

Picture is a 12V - product code is the 230V one (they use the same picture for all the CGB-1C product codes).

I used a 60a solid state relay from Communica.  Might be a little overkill but should last

https://www.communica.co.za/products/ksi600a60-l

On 2020/09/27 at 9:04 AM, Johann1982 said:

@HalcyonDo you perhaps have the product code for that relay? Voltex this side is useless and would like to order a couple to use with my future installations.

Hi Johann, Yes the one I have is the same as Justin's as per the link he posted.  Just marked as 12V somewhere in error on the page but must be the 230V 40A version.