I have four multiplus in parallel and I want to change which one is the master. How do I do this?
At the risk of being blunt, if you have to ask then you really shouldn’t be attempting to do it.
Read the parallel config doc on the victron site, and follow the free training. It has all you need to know.
Getting the config wrong can cause real issues so please skill up or get someone experienced to help you.
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Many thank for the lack of info. For the last 10 years I have had 2x 24/3000 easysolar and 4x 24/3000 Multiplus running in parallel fitted and programed by myself. I now have just upgraded to 4x 48/5000 all running with no problems in parallel, again fitted and programed by myself. I simply just wanted to change which one was the master. Its owned by me and all runs off grid and if I blow it up it’s my problem. So perhaps instead of down talking to people, give some useful advice or say nothing victron is out there as a semi-diy Install with many many people wishing to help others unlike you.
Changing the master in a parallel config requires “unmarrying” the inverters, then reconfiguring using VE Configure and a MK3 VE Direct to USB interface.
If you have done it before it is the same thing again. With one added step as mentioned by @RaySun
If you haven’t done it recently a firmware update with the mk3 will reset it to factory.
Or just reset to factory with the mk3.
You will probably need to remove all the connecting ve bus cables to do so.
Reconnect them and then reset it up as if it was a fresh install and assign it with the blinking lights.
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