Help Dr Solar resolve the Pylontech LV Hub comm issues.

I am stuck at the LV Hub, can you help?

[@joeyranieses3489]

I apologize to you on my side of misunderstanding. I read manual of up5000 and it does support daisy chaining. I think this is going to be like these in ADD dip switches assuming u(UP)=0 and d(DOWN)=1 :master A & B dip switches must be uudu and master C(last chain) uuuu. If still failing, reduce baud rate therefore, master A & B dip switches must be uudd and master C(last chain) uuud.

[@drsolar]

Nothing to apologize for. You were very helpful.

[@nestyplus]

CAN interface is terminated by 120ohm between the hi and lo terminal. That is from CAN node to another CAN node. You can not connect CAN to RS485. Those two are serial ports but they have different communication protocols.

[@drsolar]

I will try your suggestions. CAN to CAN. Thank you for the suggestion

[@ChasethesniperGod]

How did you solve the problem?

[@Tom-lv1xx]

RS485 is simply not can, it will not work. So try connect from MC(Master C) A/Can to MB A/Can and MB B/RS485 to MA B/RS485. I did not hear about this wiring scheme anywhere by now, so would try the normal connection scheme. Please connect all A/Can from MA, MB, MC to the Hub and set MA Dip switch 2 on, MB Dip switch 3 on, MC Dip switches 2 and 3 on. Watch out on the numbering, if th switches are soldered in ther wrong way 1 is 4, 4 is 1, 2 is 3 and 3 is 2 respectively.

[@dougveganparadisebuilder5808]

I hope this works for you Dr. Solar but I am sure that you will share the solution and give credit where credit is due.

[@drsolar]

The wiring and current dip switch setting work without the hub. Master A can turn all the batteries on and off. It just does not work with the Hub.

[@commodoreaustralia7141]

Hey mate, not sure if you're still having trouble.. we had a similar issue & found that on the master battery on bank 1 which connects to the LV Hub - remove wires from pins 1, 2 & 3 on this RJ45 cable. This solved our very similar issue where one out of 2 banks were being detected only - before we resolved the cable issue... Also we found the dip switches on the LV hub should all be down except for the last one on the right hand side should be up. Cheers mate

[@drsolar]

Good morning from Lagos. Thank you for watching and commenting. I like the community that we belong to. We try to help one another. Our initial cables had pin 1 2 and 3 removed and it did not work. We went to regular rj45 cables and we had communications between the battery banks. Then we used the the same cables between the Hub and master 1. We had to restart the batteries a few times before we got the two lights on the LV Hub to come on. We should visit the comment about the dip switch. We are getting some flickering from the BMS display on the inverter. Thank you so much for your help.

[@BrianChama-ii5vc]

Hi sir , the ALM Light is on and then switching off

[@drsolar]

Thank you for watching and commenting. Please explain.

[@MrBafaro69]

hi, do your master batteries have different ADD addresses? then the CAN ports of the master batteries must go to the LV-HUB. LV-HUB PIN 6 must be ON.

[@drsolar]

Thank you for the suggestion. We got it resolved. Welcome to the channel

[@jonerasmus9399]

Could you explain how to set dip switches when adding new batteries?

[@drsolar]

On the Up5000 it is not necessary.

[@joeyranieses3489]

Additional comment ,you cannot daisy chain CAN bus from masters C to B to A to Hub as there were no terminating resistors in its both ends.

[@drsolar]

Pylontech does not mention resistors in the manual.

[@dougveganparadisebuilder5808]

I hope you can find the solution Dr. Solar. Please share any solutions or suggestions with him, people who are in the know-how.

[@drsolar]

I will once I get a resolution

[@joeyranieses3489]

I see your problem now after several replays in your videos. Master A dip switch address assignment must be set to 0100 and its CAN cable should be plugged to port 1 of the hub. Master B dip switch address assignment must be set to 0010 and its CAN cable should be plugged to port 2 of the hub. Master C dip switch address assignment must be set to 0110 and its CAN cable should be plugged to port 3 of the hub. Do you have a complete schematic for your project and share it in video. I saw your struggles and been watching your videos anonymously for more than a year.

[@drsolar]

Good morning. Thank you for watching and commenting. For the US3000 and 2000 that is what the manual suggests. The Up5000 is different. The set up we used is what is in the manual. I will try your suggestion. At this point I will try anything.

[@drsolar]

Thank you so much. A whole year. Wow

[@solargarant373]

Hi, can you explain how it is solved? We have a similair failure with 18pieces US 5000. Hope to hear from you.

[@drsolar]

Can you explain what the problem is? Message me on whatsapp

[@solargarant373]

@@drsolar our Bms hub shows red failure led. Same problem as in video. What is your whatsapp?

[@drsolar]

@@solargarant373 kzbin.info/www/bejne/fpWuiKOwqMRrmsk our big problem was the cable

[@solargarant373]

@@drsolar Hi thank you do much. Our problem was the same. We added some standard utp cables and there it was. Even it worked with 3 sets to the hub directly as described in the manual.

[@tirivaenim]

Hey Dr. Solar… I know you’ve been busy at the moment with the hotel project, but just wanted to check-in with you with regards to any issues with the Pylontech batteries? By the way, why didn’t you opt for the US5000, which have a longer warranty.

[@drsolar]

Good morning. I have not had issues with them. Yes we got the extra 3 years

[@aliyumuhammad6193]

on the switches according to battery arrangement

[@drsolar]

We have been following the manual and we are stumped. The only switch it says to touch is on the first master

[@e.gn.g1183]

Bonjour, avez vous trouver le probleme j'ai le MEME probleme sur les US3000C MERCIIIII

[@drsolar]

Le 3000C ne marche pas si vous n'avez des communication entre les deux. Inverter et bougie

[@ОлександрДергачов-ы3з]

Добрий день. З'єднання батареї PYLONTECH US5000 з інвертором deye по протоколу can або brs485? Якщо по can, то батарея постійно перезарускається, якщо brs485 індикація постійно горить. Можливо підключати 2 кабелями і по can і по brs485? Дякую.

[@drsolar]

You can]t do two protocols. It is one or the other. How old is your Deye inverter?The cable for the UP5000 C is different. Pay attention to your cable

[@offgridwanabe]

If it was me I would unplug it all and start with one battery then add the rest one at a time to see if they were accepted eventually you will find the battery which is configured wrong.

[@drsolar]

Did that many times. The A master battery can turn all the batteries on and off

[@adou7716]

Please can you help me ? I have exactly the same problèm. I can Connect the master to the lv hub. What was youre problem ? Thanks you

[@drsolar]

Please explain what you are lookin for help on

[@chandarasemi6227]

Please follow manual step by step

[@drsolar]

Thank you very much. We resolved it. Thanks for watching and commenting. Don't forget to subscribe.

[@e.gn.g1183]

@@drsolar quel était le probleme ?

[@drsolar]

@@e.gn.g1183 Salut. Dit moi votre problem. Type de Inverter, si vous avez de communication entre pylontech et l Inverter.

[@catalincomsa7832]

[@drsolar]

Thank you?