June 20, 20215 yr 15 minutes ago, Nexuss said: Ah ok , in that case you definitely need to remove the solar export to grid tick(thats for selling to the grid) . It will automatically feed excess pv to the house if you have the "limit to load " unticked. Secondly i would set a lower soc than 100 for during the day , something like 40-80% . then the battery will charge up to 100% and when you have power demand above pv capability at the time the battery will supplement to whatever load needs the power . this way you dont use the grid for any peak draws above what your pv can supply at the time. okay, will make the changes to the system mode settings accordingly, thanks
June 20, 20215 yr firmware update done, thank you @Leshenit is now running MCU:3162 After it came back online after the update the CT still shows the low value (around 58W) even though the load was around 950W. I switched on my bench grinder again, on the non-essential load side, and managed to snap these two pics of the flow screen which shows the CT reading increase, although not really enough, but also shows the feed to the house and the battery providing power. When I turned off the bench grinder it wall went back to "my normal"... I have made the changes suggested by @Nexuss, I'll watch the PV and charge tomorrow.
June 20, 20215 yr The values in the above pictures adds up and makes sense. For example, house 1886w + 945w on UPS = 2831w The 2831w is supplied by inverter: 2406 watts + 425 from grid = 2831 watts
June 20, 20215 yr 1 hour ago, RhysMcW said: firmware update done, thank you @Leshenit is now running MCU:3162 After it came back online after the update the CT still shows the low value (around 58W) even though the load was around 950W. I switched on my bench grinder again, on the non-essential load side, and managed to snap these two pics of the flow screen which shows the CT reading increase, although not really enough, but also shows the feed to the house and the battery providing power. When I turned off the bench grinder it wall went back to "my normal"... I have made the changes suggested by @Nexuss, I'll watch the PV and charge tomorrow. That actually looks better. Can you disable the user timer on system mode and send another pic of the system flow chart? Basically turning off using the battery and using the grid for both essential and non essential loads. Edited June 20, 20215 yr by Achmat
June 21, 20215 yr Yea that looks like its working correctly like it should . You should always see about 100w on the ct coil as that is your zero export figure you set. The reason the reading didint go higher on CT with benchgrinder test is because the battery was supplying the power. Check the flow via the little arrows.
June 21, 20215 yr 9 hours ago, Achmat said: That actually looks better. Can you disable the user timer on system mode and send another pic of the system flow chart? Basically turning off using the battery and using the grid for both essential and non essential loads. If you turn the timer off ,the battery will start charging to 100% from grid if i'm not mistaking .
June 21, 20215 yr 2 minutes ago, Nexuss said: If you turn the timer off ,the battery will start charging to 100% from grid if i'm not mistaking . Only if grid charging is enabled under battery settings.
June 21, 20215 yr yay, success... to all those that said, or even thought, the CT was incorrectly installed you were correct😳 I finally got a chance after work this evening to get into the main DB, what I call my dirty DB with "dirty" power from the council for the non-essential loads. When I removed the DB cover and reached for the CT it basically popped open with me barely touching it. I opened it fully and removed it form the live wire then put it back and this time made sure it clipped closed correctly, which was a challenge keeping the fingers away from the neutral bar, then double check it by tugging a little. When I went back to the inverter it was looking a whole lot better. The first pic below is with PV basically done for the day and I set the timers to only use the batteries later, so expecting the CT to be reading close enough to the load value, which it was. The second pics are then after setting the timer to use the batteries and the reading are good again. Thank you to all for all the help and apologies for the trouble and confusion...
June 21, 20215 yr Just for interest and for any others that may be wanting to extend their CT coil cable... As part of checking the CT itself this evening I went back into the ceiling to check the cable there too as my CT is about 17m from the inverter. I had originally installed some CAT6 LAN cable for the extension but thought it wasn't working so bought some 0.5mm flex/panel wire and twisted some black and white together for the extension and installed that, which also gave no reading, until I switched on the grid feed to the inverter. This evening as a test I reconnected the CAT6 LAN cable, using one twisted pair, and also got CT readings so the CAT6 LAN cable does indeed work...
June 21, 20215 yr 21 minutes ago, RhysMcW said: Just for interest and for any others that may be wanting to extend their CT coil cable... As part of checking the CT itself this evening I went back into the ceiling to check the cable there too as my CT is about 17m from the inverter. I had originally installed some CAT6 LAN cable for the extension but thought it wasn't working so bought some 0.5mm flex/panel wire and twisted some black and white together for the extension and installed that, which also gave no reading, until I switched on the grid feed to the inverter. This evening as a test I reconnected the CAT6 LAN cable, using one twisted pair, and also got CT readings so the CAT6 LAN cable does indeed work... Yep, the "TP" in "STP" or "UTP" stands for twisted pair. The gauge will start to matter when longer distances need to be reached, but now at least we know that CAT-6 does 17m. Thanks for sharing, and congratulations!
June 21, 20215 yr @Leshen I see you are often doing updates to the Sunsynk. Would it be possible to share with us how that is achieved? Who does the update and how is the serial number found? Thank you for all your wise help and time Edited June 21, 20215 yr by RyanG Would you be able to share what the latest is on 8KW please
June 21, 20215 yr 44 minutes ago, RyanG said: @Leshen I see you are often doing updates to the Sunsynk. Would it be possible to share with us how that is achieved? Who does the update and how is the serial number found? Thank you for all your wise help and time Hi Ryan. No problem. The serial number is found on the sticker at the side of the Sunsynk as well as on the screen and Solarman app. I request the updates directly with Sunsynk engineering.
June 23, 20215 yr Author On 2021/06/19 at 12:23 PM, Nexuss said: I had to use a wired antenna as i could not get it to connect with the one the supplied,it was very frustrating lol. Can you give details of how you connected the wired antenna?
June 23, 20215 yr 1 hour ago, Ant Seiderer said: Can you give details of how you connected the wired antenna? You just screw off the normal small antenna and screw on the new wired antenna ,not much to it. I used an old smc type antenna.
June 23, 20215 yr 22 minutes ago, Nexuss said: You just screw off the normal small antenna and screw on the new wired antenna ,not much to it. I used an old smc type antenna. I have an old 2.4GHz TP-Link high-gain antenna somewhere, it's about 30cm long, must dig it out my boxes and try it. I bought two of them on "special" at some or other store about 4 years ago, never been used.
June 25, 20215 yr I notice that you guys have the "house" (non essential loads right ?) on RhysMcW's inverter displays looks like so:- How do we get the house - our Sunsynk 8KW is not showing the house - this a pic from our inverter panel. The installation manual was pretty shoddy - we connected CT to 5 and 6 so we hope this is correct. We have Zero Export ticked and the CT appears to be working.
June 25, 20215 yr 4 minutes ago, GreenMan said: I notice that you guys have the "house" (non essential loads right ?) on RhysMcW's inverter displays looks like so:- How do we get the house - our Sunsynk 8KW is not showing the house - this a pic from our inverter panel. The installation manual was pretty shoddy - we connected CT to 5 and 6 so we hope this is correct. We have Zero Export ticked and the CT appears to be working. Maybe check if you on the latest firmware version. Zero export should be ticked and limit to load unticked. Those numbers don't add up though. Edited June 25, 20215 yr by Achmat
June 25, 20215 yr 2 minutes ago, Achmat said: Maybe check if you on the latest firmware version. Zero export should be ticked and limit to load unticked. Thanks Achmat. Can you perhaps confirm that the CT is connected to the correct pins for the 8KW Sunsynk ? We will change setting "limit to load" to be unticked. To confirm - when it says "limit to load" I assume that they mean limited to essentials ? So by unticking we get power also to non-essentials ?
June 25, 20215 yr @GreenMan from what I've learnt, if the CT is connected correctly and working then you get a little icon of the CT just up from the powerline icon - if you look at the pic of mine, that you showed, it's the icon between the powerline and the block that has 1300 watts in it. You can actually see the CT values in the screen with the 6 blocks, which you get to by tapping either the Battery or AC load dials from the home screen. If the CT value there is zero, and you're sure you're pulling power from the grid, then it may be that the CT is not being seen by the inverter. According the manual you are correct with points 5 & 6 on the 8kw for the CT.
June 25, 20215 yr 26 minutes ago, GreenMan said: Thanks Achmat. Can you perhaps confirm that the CT is connected to the correct pins for the 8KW Sunsynk ? We will change setting "limit to load" to be unticked. To confirm - when it says "limit to load" I assume that they mean limited to essentials ? So by unticking we get power also to non-essentials ? Can't recall now but will open it and check. Correct, limit to load means only the essential or ups port will get power from solar or batteries. If you unticked this it will send power to the house. Zero export means that will stop exporting beyond the CT coil.
June 25, 20215 yr @RhysMcW. Thanks for the useful info Perhaps the CT symbol and house symbol are from the new firmware as @Achmat suggests ? What is latest firmware version. Using SmartSolar it says;- Protocol Version：V0.2.0.1 Control Software Version 1：V3.8.7.8 Communication CPU Software Version：VE.4.1.6 We will check the 6 blocks to see if we can read the CT values. The inverter is remote so can access it via Solarman Smart. Are there values in the Device Data which show the CT readings ?
June 25, 20215 yr 3 minutes ago, GreenMan said: @RhysMcW. Thanks for the useful info Perhaps the CT symbol and house symbol are from the new firmware as @Achmat suggests ? What is latest firmware version. Using SmartSolar it says;- Protocol Version：V0.2.0.1 Control Software Version 1：V3.8.7.8 Communication CPU Software Version：VE.4.1.6 We will check the 6 blocks to see if we can read the CT values. The inverter is remote so can access it via Solarman Smart. Are there values in the Device Data which show the CT readings ? Comm e419 MCU 3.8.8.0 control software For the 8kw @Leshencan request a software update Edited June 25, 20215 yr by Achmat
June 25, 20215 yr 33 minutes ago, Achmat said: Comm e419 MCU 3.8.8.0 control software For the 8kw @Leshencan request a software update Hi Achmat. Please send serial number
June 25, 20215 yr 9 minutes ago, Leshen said: Hi Achmat. Please send serial number Not for me. For @GreenManyou can pm Leshen.
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