@Johann1982

Has the aux restarting issue been resolved for you yet? 

@AchmatWell, since 5:45 this morning I am running on V3.8.7.0 which has been modified to remove the 5 second delay on the smart load. So hopefully it will stay on now. Will keep you posted.

Are the firmware updates done remotely or how does it work?

11 hours ago, Heinds said:

Can you post a picture of your relay connection up close? The diagram on the manual isn't clear.

Hi, picture attached.  Power relay on the left (black relay mounted on a little plastic board and secured with cable ties).  Earth wire from relay bridging load neutral and earth.  Signal wires into the ATS240V port on inverter.

IMG_1156.HEIC

Edited August 22, 20205 yr by Halcyon

37 minutes ago, FixAMess said:

Are the firmware updates done remotely or how does it work?

Yes, the manufacturer pushes it via the wifi logger. Only thing that bugs me about the updates are that it restarts the inverter when it is a major update. 

14 minutes ago, Johann1982 said:

Yes, the manufacturer pushes it via the wifi logger. Only thing that bugs me about the updates are that it restarts the inverter when it is a major update. 

Goodwe also restarts after a new build is released....

Did a test and tripped mains, all loads stayed on without even a dip. So smart load is now also like UPS output. Just hope the smartload stays on without the reboot issue.

Still having reboot issues. Smart load just went off again for 5 seconds. There must be a way to access the working logs on this inverter to check what may have caused the smart load to reboot.

23 hours ago, Halcyon said:

Hi, picture attached.  Power relay on the left (black relay mounted on a little plastic board and secured with cable ties).  Earth wire from relay bridging load neutral and earth.  Signal wires into the ATS240V port on inverter.

IMG_1156.HEIC 1.51 MB · 14 downloads

Thank you! Stupid question, but why is this required and how would you know if you require this as i see in the manual that this is optional as not all installations require this?

3 hours ago, Heinds said:

Thank you! Stupid question, but why is this required and how would you know if you require this as i see in the manual that this is optional as not all installations require this?

When the mains go out and inverter is in off-grid mode your neutral to earth bond no longer exist. So you have to use a relay to bond your output earth and neutral once the mains connection is no longer available.

Thanks Johan, yes exactly.  To my knowledge it is a SANS "RSA electrical code" safety requirement.  Search this forum on the subject to learn more.  There are quite a few discussion strings on earth neutral bonding etc.

On 2020/08/21 at 2:03 PM, Halcyon said:

Hi Werner, the only way to solve the problem is with a power relay linking load output neutral and earth when grid falls away and vice versa.  The inverter emits a voltage signal to switch the relay on and off.  To use this signal you have to have the latest firmware installed on the machine and check the box in settings for island mode signal.  Refer to the latest Sunsynk manual.  It shows how to wire and setup correctly.

Thanks for your replay.  It is now clear how to do.  Also saw it in the regulations that this must be done and tested during power outage and the potensial between earth and nuatral was high.  

Problem is that the Sunsynk inverters purchased 6-12 months ago doesn't have the ATS port (confirmed with Keith from Sunsynk). Is there another solution to create the earth bond?

 

 

6 minutes ago, Heinds said:

Problem is that the Sunsynk inverters purchased 6-12 months ago doesn't have the ATS port (confirmed with Keith from Sunsynk). Is there another solution to create the earth bond?

 

 

Hi Heinds, yes you can.  The best solution is to use a time on delay power relay. This is what I was using together with an Axpert earthing relay box before the software on the inverter was updated.  The coil in the time on delay relay senses if you have Eskom gird.  When AC lost it signals the earthing box to connect earth and neutral.  When grid comes back it waits 60 seconds to unlink earth neutral coinciding with the moment the inverter reconnects grid (as you may know the default time a hybrid inverter takes to reconnect to grid once power restored is 60 seconds).  Long story short I have this relay setup spare if want it.

5 hours ago, Halcyon said:

Hi Heinds, yes you can.  The best solution is to use a time on delay power relay. This is what I was using together with an Axpert earthing relay box before the software on the inverter was updated.  The coil in the time on delay relay senses if you have Eskom gird.  When AC lost it signals the earthing box to connect earth and neutral.  When grid comes back it waits 60 seconds to unlink earth neutral coinciding with the moment the inverter reconnects grid (as you may know the default time a hybrid inverter takes to reconnect to grid once power restored is 60 seconds).  Long story short I have this relay setup spare if want it.

For Axpert inverters you can use a normally closed relay that is powered from the mains. The mains opens the contactor and breaks the Neutral Earth bond on output side and when mains go out it closes again and makes the bond.

On 2020/08/15 at 1:47 PM, Achmat said:

Don't have the portal hanging issue. Mainly using the Solarman Smart app. 

I'm still waiting on the firmware update but decided to check the settings under local mode and found the always on setting under smart load. Turned it on and will monitor it over the weekend. 

do you access the settings from solarman smart ?

4 minutes ago, MartinCoetzee said:

do you access the settings from solarman smart ?

The settings can only be accessed on the Solarman Pro or Solarman Business apps.

 

Edit: The Solarman Smart app also has a local mode to change the inverter settings.

Edited August 25, 20205 yr by Achmat

i have requested to have my account transfered but its been a few days with no reply.

1 minute ago, MartinCoetzee said:

i have requested to have my account transfered but its been a few days with no reply.

I didn't need to request any account move.

I did however register an installer account as well.

Ok, so I am on a whatsapp chat group with the manufacturers and programmers for Sunsynk. Anyone having the issue with smart load rebooting, send me a direct message so that I can add you to the group for troubleshooting. 

59 minutes ago, Johann1982 said:

Ok, so I am on a whatsapp chat group with the manufacturers and programmers for Sunsynk. Anyone having the issue with smart load rebooting, send me a direct message so that I can add you to the group for troubleshooting. 

If I didn't already remove my loads from the aux I would have joined. 

Good luck with trying to get this resolved. Will follow in case I need to use the aux as an output in future. 

18 hours ago, Achmat said:

The settings can only be accessed on the Solarman Pro or Solarman Business apps.

 

Edit: The Solarman Smart app also has a local mode to change the inverter settings.

got my plant active on solarman business but i cannot see where to change settings, can you maybe guide me in teh right direction ?

 

1 hour ago, MartinCoetzee said:

got my plant active on solarman business but i cannot see where to change settings, can you maybe guide me in teh right direction ?

 

You need to select local mode and then scan the data logger.

Changing settings only works when you are directly connected to the WiFi of the logger.

ok understood.

On 2020/08/16 at 5:57 PM, Achmat said:

@Jaco de Jongh

The Sunsynk 8kw inverted is on the CoCT list of approved inverters so I expect it to detect that the grid is down and not attempt to feed back. 

Haven't yet had load shedding since the installation. 

@Johann1982

Just had my electrician in and moved all the loads on the aux to the normal load output of the inverter. 

I also changed the settings of the aux to micro inverter input. 

The animation on the Solarman app has changed to show this even though there is no micro inverter connected yet. 

which version of what solarman app is this ?