Jump to content

BMS COMMUNICATION ERROR


Recommended Posts

Posted

Hi, Everyone. I am also new in solar energy. I have recently installed solar power kit in my house ( Growatt off Grid inverter SPF 5000TL HVM-WPV, with Dyness B3 Lithium battery). My problem is the communication problem between inverter and battery. Each time I switch on the battery the inverter shuts down power from grid and PV. I get error "20". I have connected the battery communication   via RS 485 port of the inverter. The Dip switch is set at #2 and #3 On. Please help.

 

regards 

Posted

I had the same issue with the exact same setup. Contact the people you got the inverter from and ask for a replacement comms cable.I know I had a orange cable supplied which didn't work. After installing the replacement cable and switching the inverter to Li mode everything was working fine.

Posted

Hi, Ianvn. Thinks very much for your advice. Did you replace your comms cable with the same orange one or did you get a different one because the one I have is also orange.

Posted

The one they supplied me with is a black one and have markings on to say which side is inverter and which side is battery. They might come in different colors though.

 

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
×
  • Create New...