I am still experiencing the same persistent problem with my Quattro inverter: whenever I switch it off or perform a remote configuration change, the inverter only comes back on if I remove the VE-Bus cable. I am unsure if this is an isolated issue, but I have encountered it at a customer site as we…

I will make up cable tomorrow and test

Is this GX powered by AC or DC? Have you read this topic? [image] Multiplus-II inverter not switching On with VE.Bus cable to Cerbo GX Connected DIY @selwyn There is an old workaround if it persists. Q20 .

No but have now, I don’t think that is the solution, this started happening when I upgraded my Quattro 48/10000 to a Quattro 48/15000 - I am running from a single power source Freedom Won 60/40. I have industrial shielde cables. Could it be that perhaps I have a faulty control board in the inverte…

Hi, It sounds like you didn’t try yet? Please try the PIN7 workaround and then report back.

[image] Why isn’t my question getting answered? The inverter will only switch on once i disconnect the VEBUS cable. This is a known behaviour and mentioned in the docus. When you run a gx powered from ACOUT of the inverters, you have a chicken-egg-deadlock of both devices. See:

Isnt the VE.Bus BMS Mains detector doing the same thing, disconnecting Pin7 through a Relay when Mains is available? Or does it disconnect Pin6? 3. Installation

My Quattro is a 15KV. The cerbo is connected to my Lynx distrubutor. [image] . I got the following devices installed. Latest firmware installed on all devices. Previuously Quattro 10KVA - no issues. I will Reset the inverter using Ve Quick Flash -personally I dont think cutting any cables is g…

Apart from it being shipped with the VE.Bus BMS, the VE.Bus BMS Mains Detector is a separate device. Its just a small PCB with two 230VAC inputs that each activate a relay inside, to disconnect Pin 6 or 7. If it disconnects Pin 7 then im sure you could use it in your situation as well, regardless o…

I have now used VE.Bus Quick configure and reset the inverter. I have loaded setting without any assistants, I have changed the VE-Bus Cable with a new cable. Still the same issue. There can be probably 2 Issues - we have a faulty VE-BUS on the inverter - or something on the Cerbo though I think t…

Persistent Issue with Quattro Inverter not switching on

Q&A and troubleshooting

jvdspoel (Johan van der Spoel) 30 July 2025 19:06 4

I still have not got a answer with regard to my inverter not switching on after a change with VEConfig - this is a problem and I need some assistance plz

Why isn’t my question getting answered?

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Persistent Issue with Quattro Inverter not switching on

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