Neph

Apparently, this is normal since the inverter wants to communicate immediately with the battery but the battery BMS might be slow to respond\wake up - the BMS might have gone to sleep if it wasn't being used previously. So doing a full restart (especially by switching off the battery "main switch" and back on to wake up the BMS circuitry) fixes the comms. I discovered the above "fix" on a site's technician's notes for comms issues the person has dealt with previously aka experience 😎 "Thanks for this. Have you had any disconnects/comms issues after running this for some time? How long have you been running it like this?" Twice- Once where the comms cable RJ45 wasn't seated properly on the battery side and pulled out slightly thus randomly losing comms 😡. The Rj45 clips was slightly broken...new RJ45 fixed that. The 2nd time was my fault - updated from 500.07 to 500.12 checked everything was fine and left. Got a 😡 wife calling me at 10:20 4 days later when I was of course an hour and 40min away that the power was tripping none stop even after the load was completely switched off. Got there just to realize that 1 - I never restarted the inverter after the firmware update so after it tripped it lost all the settings. 2 - Even after setting the settings and restarting the inverter it would lose them again. Factory reset the inverter, configured it, restarted, and its been solid since...so we learn 😒 Been solid now since March 7th. I've helped a few people now with comms issues and once the right cable (pinouts) is used in the right ports and the right settings are in none have had any issues. touchwood

My interaction with Growatt support that I worked with a few months back left me with the distinct impression that they don't keep proper track of firmware releases and ONLY update when they are 100% certain that your issue matches a specific firmware or another update. *Rant* For example, I currently have a TL were the display is corrupted after applying an update for the negative value issue some inverters have. ONLY to be told afterward well... sorry but we could have manually cleared the faulty logged data and this inverter is out of warranty so you have to pay now to have the display replaced. Wait you TOLD me on WhatsApp to go ahead and now that it failed you're saying it's not really recommended?! The inverter is still unusable and they stopped responding to my whatsapps... *Rant ends* The 2nd firmware is for the coms board itself. 13. SPF 5000TL HVM COM BOARD( Please Note That It Is Just For Com Board That Has CAN And 485 Function ) Download link Remember that after the update is done too power cycle the inverter and once back up to factory reset it so the new firmware values\settings are loaded and then reconfigure the inverter.

I only have 1x UP5000 but as long as your dipswitches are correct between the 3 batteries so they can communicate and all are on the same firmware or at least the master is on a newer\latest all should be fine. That being said let's see if we can't fix your error 04, 20. What I suggest is that you test firstly with only 1 battery and 1 inverter at a time. I don't know how feasible that would be for you but eliminating half the system would make it much easier to locate the problem in my opinion... *Take pictures and not down all inverter settings before you start* Power everything down - I'm assuming you know the correct sequence here. Break the parallel connection and power on only the 1 inverter connected to only 1 battery you going to be working with. Reset the inverter you going to be working on to factory- Reset inverter to factory - Press UP+Down together (Display will change to code 00) Press enter and adjust to 305 (up 3 enter, up 5) Press enter twice and wait for long beep and unit will spin up. Power down the inverter. Once dead switch off the battery - use the RED switch followed by the main switch of the battery. Confirm you using the following cable?! Inverter Side Pin 1 White\Orange Pin 2 Orange Pin 3 White\Green Battery Side Pin 6 - GND White\Green Pin 7 - RS485A Orange Pin 8 - RS485B White\Orange Connect the comms cable- Connect cable on battery side to the port labeled - B/RS485 Connect cable on inverter side to the port labeled - BMS port On the Battery set your Baud rate to 9600. Dipswitches 1 0 0 0 (1-ON 2-OFF 3-OFF 4-OFF) - single battery. Power on the battery (main switch and then press the red button) followed by the inverter and wait for the inverter to give power out - confirming it's fully booted. With nothing connect the only load it should show is the 10-15watts its consuming itself. Now go to setting 5 and select battery type = Li. Then select profile L04. Once set and you exit out to the main menu the inverter should error 04,20 and start beeping for 5-15sec max in my experience before establishing comms with the battery at which point the beeping will stop and the error led will switch off. Comms are up - browse through the inverters menu and confirm it can display the battery % now. If the above fails it means comms could not be established so now we'll do it from a fresh start. *I have had it here where the inverter kept on beeping and finally switched itself off.... in that case switch the inverter switch off and the battery - press the red button and then switch it. Wait 10 secs and power on the battery by pressing the main switch, then the red switch and finally power on the inverter. Comms should now be established - if it keeps on beeping leave it and give it time to start communicating. If the inverter switches itself off again restarts as per above *. Once the inverter is up and beeping check your setting 05 again. If everything appears fine change back to USE and then back to 05 - 04. If you still can't get comms up try with one of the other batteries - remember to set the dips switches and start from *. You HAVE to be able to get comms with the inverter and one of the 3 batteries, to be honest here. Your firmware is correct so as long as your comms cable is correct and everything is connected correctly it MUST work. Once you have comms up between the inverter and one of the batteries. Power down everything and add the 2nd battery - set dips switches. Power on and check, If stable power down and bring the 3rd in and test again. You might run into an issue were the batteries fail once the 2nd or 3rd battery is added in, swap the batteries around so a different one plays master... Once you have a stable inverter with comms up with the 3 batteries start again following the same sequence with the other inverter - if all goes well you should end up with both inverters separately being able to communicate with the 3 batteries...OR you have identified an inverter or a battery that doesn't want to play nice with everyone else which you can then shoot separately. But hopefully, both inverters work fine separately with the stack batteries so you know all is well now. Power everything off, connect the parallel connection. Restart both inverters - set the needed settings so the system comes up in parallel with comms up with the batteries. Now switch on your pannels, then Eskom and finally your load.

For the spf5000tl-hmv-p - You can download it from here Option 9 - https://www.amosplanet.org/firmware-download-for-off-grid-inverter/

Confirmed spf5000tl-hmv-p

You can download it from here Option 9 - https://www.amosplanet.org/firmware-download-for-off-grid-inverter/

What exactly isn't working\showing on the Shine app? When I communicated with Pylontech earlier this year they insisted on using Li 05 L04 only. From what I could gather that is what was tested between them and Growatt since Growatt on the TL only provides an RS485 port so if your using the cable I have above you should be fine. That being said you could try CAN. On the inverter side, the battery comm cables remain in the RS485 port but on the Pylontech you would swap over to the CAN port now and use setting Li 05 L52 on the inverter. Take note that your comms cable pinouts will change now to: Inverter Side Pin 4 CAN-H Pin 5 CAN-L Did a quick Google for the 3000c manual it appears to be the same pinouts. So make up a new cable with ONLY these 2 connected on each side. Battery Side Pin 4 CAN-H Pin 5 CAN-L

Updated inverter to firmware 500.12 followed by a factory reset to fully enable the new firmware corrected by problem along with changing setting 05 Li from 02 to 04 which is Pylontech specific.

Confirmed with Growatt that firmware 500.12 (SPF5000TL HMV-P) is the latest normal firmware as of 03-03-2023. They do have a few others that address specific issues like Negative Value of power generation/ Daily restart of inverter to fix PV input/Continuing 01 warning ect to name a few. But these are only given out to fix specific issues as needed. Both Growatt and Pylontech confirmed the above comm cable pinout as correct using 05 Li protocol 04 If 04 gives you error 20,04 - if already on firmware 500.12 start at step 5 1. Note down all your inverter settings 2. remove all loads 3. restart inverter 4. update firmware to 500.12 5. restart inverter with no load - insure it starts up normally 6. reset inverter to factory - Press UP+Down together (Display will change to code 00) Press enter and adjust to 305 (up 3 enter, up 5) Press enter twice and wait for long beep and unit will spin up. 7. restart the inverter and set all your settings previously noted down in step 1 - if it happens that you get a error (LED is light) as soon as you set 05 Li 04 - wait 10-15sec for to comms to establish. 8. Restore loads Setting 05 LI 02 will also work but will "cap" your max charge current to around 32Amp which intern will limit you PV input to around 1650watt - this is because 02 is close enough to 04 for Pylontech and the inverter to communicate but not fully. Since factory resetting my inverter after updating to 500.12 my PV is no longer limited and I'm able to fully carry my loads and charging my batteries at the same time using 05 Li 04 on a sunny day.

Greetings, I have 2x Growatt SPF 5000TL HMV-P (parallel cards incl) that I want to trade for Sunsynk 8kwd. Both are in perfect working order. The original idea for 2 inverters was to double capacity and redundancy in case of inverter failure which it turns out was never needed.

I just tested with USE settings but I'm back to Li. I spend the money on a Lithium for the value over time and without BMS that won't happen. I don't believe it to be a communication issue between the inverter and the batteries BMS... if I disconnect the comms cable the inverter errors about 10 sec later with error 20 & 04 and the app shows all the % values at 0. Reconnected the cable and it clears within seconds and all the % values are back. The UP5000 manual has the suggested charge\discharge rate at 50Amps so I leaning towards a inverter firmware issue. I've popped a email to Amos so hopefully it is something easily corrected. Fingers crossed he responds. I'm definitely aiming for a Sunsynk in the long term.

Greetings, Installed a 8x 380 panels, 8x agm 200ah batteries along with a spf5000tl hmv.... the inverter failed about 6 months later back in 2020. Came on for around 10sec after loadshedding ended. My installer wasn't in town so send me to CNBM in Midrand which I think is there importer. The technician arm was in a sling and I had to connect the unit up and open it up for him to confirm the error and that no components were missing inside - apparently stealing components and swapping under warranty is a thing here in SA which they only discovered in China when they opened the units there just to find missing parts so now they test first. Anyways mine was swapped out on the spot and has been rock solid since. 2 Weeks ago my gels gave up the fight so I bought a new polytech UP5000 and with a bit of googling found the correct pin outs for the comms cable and connected the battery up and it been working really well however... with setting-05 set to Li settings 02 & 11 are now managed by the system and its limiting them to between 10Amps and 32Amps and this is limiting my PV input to around 1650watts instead of my normal 3100watts so my PV is no longer able to carry my daily loads and charge the batteries. At 32Amps I can't even recharge the battery back to full between load shedding windows. However if I set setting-05 back to USE and configure the battery voltages manually as per the polytech manual everything is back to normal aka I'm getting to around 2800watts in between today rain spells so it must be something with the inverters Li settings... or the inverters firmware. My installer has not responded to my whatsapp or emails. I've emailed growatt UK and China with no response from either in over a week. Any advice?

What lithium batteries do you have? Polytech, shoto ect

My 8x agm batties died so I decided to upgrade to a polytech up5000 Growatt SPF 5000TL HVM-P (build 500.07/002.03/null). FW that came with the inverter. Switched Inverter to run off battery only. Disable A/C input and A/C output and PV input. Go to setting 5 and select battery type = Li. Then select profile L02. Now shut down the inverter (wait for the display to die) and switch off the batteries with the red switch Connect the communications cable between the inverter and the battery I made up a Cat5 cable as follows: Inverter Side Pin 1 White\Orange Pin 2 Orange Pin 3 White\Green Battery Side Pin 6 - GND White\Green Pin 7 - RS485A Orange Pin 8 - RS485B White\Orange Cut the remaining\unused wires off Connect cable on battery side to the port labeled - B/RS485 Connect cable on inverter side to the port labeled - BMS port Set your Baud rate to 9600. Dipswitches 1 0 0 0 (1-ON 2-OFF 3-OFF 4-OFF) Switch on your batteries followed by the inverter. Inverter came online with no errors and has been running smoothly for 2 days now The only problem I have now which has been discussed on the tread before is the fact that once the batteries are fully charged Solar is switched off. Yesterday which was a nice sunny day the system went in to overload error 07 and switched off when wife used the stove pushing the use to 2.6kw. I have 3.8kw worth of panels and the only thing I can think of is that max charge option 2 which is now being controlled automatedly and from what I've been seeing is being set between 10A - 32A is cause. So far I've not seen the system using more that 1600kw from the panels. I see user "ISS" reported fw 500.12 that might have corrected the solar disconnect issue. Has anyone tried is to confirm? Thank you.

Greetings,Looking for advice or installer that can assist with the below-During March I installed a Growatt 5kva invertor along with 10x 380 watt panels and 4x 200ah 12V Gel Deep cycle batteries from Allgrand. Initially the idea was to never have load shedding again which has been successful .Pushing the batteries to 50% DOD showed that we could go off-grid for 8-10 hours. After the April Eskom price increase we did some more math's and realized we could just as well expand the system with another 4x 200ah batteries to give us 9kwh at 50% DOD and kick Eskom eventually down the line. Our rent for a 3 phase 25kva feed from Eskom is R1 992.00 exc vat (std for farms in Pretoria east) and that's just rent and doesn't include any actually power usage.Last weeks cold front along with the rain and overcast weather for Pretoria showed us that the system can cope, but only to a point and will fail to charge the batteries and carry our load especially when it rains. Accounting for last years long rain spell or our normal rainy season just adding more panels or batteries isn't cost effective when the system as is will work 90% of the time.So we are thinking of supplementing the solar system with a 5 - 7kva generator to help charge the batteries\carry our load on those odd days when it rains too much after Eskom has been disconnected.The invertor comes with a "AGS - automatic generator start" contact but the solar installer has no experience using it. Googling around and speaking with generator suppliers it appears that in SA we only get "ATS" enabled generators and no one can tell me if that connector/cable will work with Growatt's "AGS" - I would like the invertor (as sold) to automatically start and stop a generator as needed when the battery banks voltage drops to below 48V \ 50% DOD.Is their anyone here that has implemented the above for a Growatt invertor successfully or any advice on another workable solution so I can go off-grid completely?Thank you.