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Sunsynk inverter not communicating with Freedom Lite 10/8


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Posted

I need some help with a communication failure between a Sunsynk 5K SG01LP1 and a Freedom Lite 10/8 battery. I used the standard cable supplied with the inverter. I also checked the cable. The inverter is working 100% but there is no BMS communication. What should I check?

Posted

I got this sorted out with some help from Freedom won batteries. It turns out a normal ethernet cable as supplied with the Sunsynk inverter doesn’t work. So whats needed is the following. The normal ethernet plugs (RJ45) Pin 7 of battery goes to pin 4 of inverter and Pin 8 of battery goes to pin 5 of inverter. You don’t need the other wires. 

Posted (edited)

Yip, the Ethernet cable supplied with the inverter is not for batteries. 👍

Great to hear you are sorted out.

Edited by TimCam
  • 7 months later...
Posted
On 2022/03/26 at 4:43 PM, Benji said:

I got this sorted out with some help from Freedom won batteries. It turns out a normal ethernet cable as supplied with the Sunsynk inverter doesn’t work. So whats needed is the following. The normal ethernet plugs (RJ45) Pin 7 of battery goes to pin 4 of inverter and Pin 8 of battery goes to pin 5 of inverter. You don’t need the other wires. 

Hi Benji, did you have to change any settings on the Inverter ? 
Thanks for the info btw 

Posted
On 2022/03/26 at 4:43 PM, Benji said:

I got this sorted out with some help from Freedom won batteries. It turns out a normal ethernet cable as supplied with the Sunsynk inverter doesn’t work. So whats needed is the following. The normal ethernet plugs (RJ45) Pin 7 of battery goes to pin 4 of inverter and Pin 8 of battery goes to pin 5 of inverter. You don’t need the other wires. 

Hi Benji, did you have to change any settings on the Inverter ? 
Also does the ethernet cable need to be grounded (GND). 
 

Thanks 

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