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diy solar

BMS communication Battery United Energy/Nimac and Growatt SPF 5000 ES

Proyectos Tiwave

New Member
Joined
Mar 3, 2025
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1
Location
Chile
Hi, I'm try to communicate the battery United Energy UE-R-5kWh (https://www.unitedpvsolar.com/rack-...12v-100ah-200ah-lifepo4-solar-storage-battery) to Growatt SPF 5000 ES inverter by CAN-BMS port.

I have 2 inverters, one has the firmare version: 113 03 4.01 114 03 4.01 and the other one has 113 00 9.07 114 00 9.07.
The battery has the firmare version: P15S100A-21058-3.10

In the manual of the inverter says that the pin configuration for the BMS port is:
1.RS485B 2.RS485A 3.- 4.CANH 5.CANL 6.- 7.- 8.-
and for battery:
1.- 2.- 3.- 4.CANL 5.CANH 6.- 7.GND 8.-

Can anyone help me with this problem? Today, I wrote to a contact at Growatt, and I will also write to United Energy. If I manage fix the problem I will post the solution here.
 

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