Is it possible to switch Multiplus 800/35 inverting off when SOC reaches 50% via Cerbo GX?

Question

question

fede-h asked Aug 9, '22

Is it possible to switch Multiplus 800/35 inverting off when SOC reaches 50% via Cerbo GX?

I have just added a Cerbo GX to my current installation consisting of two 12V 190Ah AGM batteries, two Blue Solar MPPT 100/50 controllers, one Multiplus 800/35 inverter/ charger and a BMV-712.

Prior to adding the Cerbo, the original system protected the batteries by switching off the inverter when an alarm for 50% SOC was triggered via the BMV relay that was connected to the remote connection of the Multiplus.

I had to remove the remote connection (DS1 to "off") in order to allow the Cerbo to properly connect to the Multiplus via VE.Bus.

I now want to reproduce the same protection rule using the Cerbo. Is it possible?

Thanks in advance.

cerbo gx SOC multiplus ve.bus battery protect

2 |3000

Attachments: Up to 8 attachments (including images) can be used with a maximum of 190.8 MiB each and 286.6 MiB total.

Modifications Space

Node Red Space

Answer 1 · 2022-08-21T21:13:23Z

fede-h answered · Aug 21, 2022 at 09:13 PM

Just bumping it to ask for help....

2 |3000

Attachments: Up to 8 attachments (including images) can be used with a maximum of 190.8 MiB each and 286.6 MiB total.

Answer 2 · 2022-08-22T00:52:42Z

Rob Fijn answered · Aug 22, 2022 at 12:52 AM

Hello @fede_h , I think that when you load the 2-wire BMS assistant you can use a Sense V or T for remotely switch OFF inverting.

Hope this helps.

Best regards, Rob

1

2 |3000

Attachments: Up to 8 attachments (including images) can be used with a maximum of 190.8 MiB each and 286.6 MiB total.

fede-h commented · Aug 22, 2022 at 01:11 PM

Hi @Rob Fijn , thanks for your answer. My installation is now 1600 km away and I had to disconnect my multiplus from the network but I will try that when at the site. Thanks again.

0 ·

question