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Growatt SPF5000ES and Greenrich BMS communication problem


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Posted

Hi All

I'm new to solar. I have a Growatt SPF5000ES inverter with a Greenrich 3.68 kWh battery and a 3.2 kW PV array. The battery will only work in User mode in setting 5. If I follow the instructions on the Elleyhill website to the letter, selecting Li in setting 5 and LI01 in setting 36 with the comm cable connected between both RS485 ports (on inverter and battery) and dip switch on battery as 1000, it registers a fault 20 (BMS communication error) and disconnects the supply to the load. Any help would be appreciated. 

Posted (edited)

@GarethKRead page 6 of the Inverter User Manual. It may be that your cable pin connections don't match ? 
The cable is supposed to be connected to the BMS comms port. Have you tried that yet?

Edited by zsde

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