Communication multi-groupes Pylontech US5000 avec Victron

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1

In english below

Bonjour tout le monde - communication 3x6 Pylontech et Victron

Je suis sur une installation de 3 groupes de 6 batteries pylontech US5000 connectées à un système Victron (3 multiplus, 2MPPT RS 450 200) et je n’arrive pas à avoir de communication entre les batteries et le cerbo GX.

Si je branche un seul groupe de batterie, aucun soucis j’ai toute la communication, dès que j’ai 2 ou 3 groupes qui sont communiquent entre eux correctement je n’ai pas la communication avec le cerbo gx.

Les 3 groupes de pylontech ont une master chacune, la master du 1er groupe a un cable type A connecté au cerbo GX.

Entre les groupes des batteries un cable batterie fourni par pylontech est branché entre la sortie B/RS485 de la 1ere master et le A/Can de la 2eme master, puis le B/RS485 de la 2master au A/Can de la 3ème master comme indiqué dans le manuel pylontech. Au démarrage la master du groupe 1 sonne bien 3 fois pour indiquer qu’elle est bien connecté à d’autres groupe.

Quelqu’un est déjà passé par là ?

Bonne journée!

Hello everyone - 3x6 Pylontech and Victron communication

I have a setup with 3 groups of 6 Pylontech US5000 batteries connected to a Victron system (3 MultiPlus, 2 MPPT RS 450 200) and I can’t get communication between the batteries and the Cerbo GX.

If I connect only one battery group, there’s no problem, I have full communication. However, as soon as I have 2 or 3 groups communicating correctly with each other, I lose communication with the Cerbo GX.

Each of the 3 Pylontech groups has a master. The master of all the batteries : the master of the first group has a Type A cable connected to the Cerbo GX.

Between the battery groups, a battery cable supplied by Pylontech is connected between the B/RS485 output of the first master unit and the A/Can output of the second master unit, then from the B/RS485 output of the second master unit to the A/Can output of the third master unit, as indicated in the Pylontech manual. Upon startup, the master unit of group 1 beeps three times to indicate that it is properly connected to the other groups.

Has anyone else encountered this issue?

Have a good day!
2

Hi sorry no french, 3x6 is 18 pylontechs, this not possible without a pylontech hub, 16 is the max and also there can only be one master in a system

3

Thanks for your answer,
I see to what you refer but in the pylontech manual it is said that there are 2 ways to connect together pylontech groups, and one is like that :

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image581×787 94.6 KB

In this case we don’t need the LV-hub.
Also, the limit of 16 that you say is within one group, here we have 6 by group.

4

Yes you are right, but i dont think the setup your are trying to use is possible with a victron inverter…

5

You mean without the LV Hub ?

If anyone has experienced multigroup pylonthech connection to GXdevice, I would take advices.

6

yes LV hub works with victron,

Multigroup i’m not sure..