Whodgins
Senior Member
- Joined
- Sep 3, 2016
- Messages
- 139
- Location
- Canada
- Vessel Name
- mv Möbius
- Vessel Make
- XPM78 eXtreme eXploration Passage Maker, Naval Yachts
Hi Wayne,
If I'm following you correctly, I don't think the Multiplus devices operate the way you want them to. Or maybe I don't understand them either...
But my understanding is that they are always either inverting OR charging, but never both. They can be set up to only charge, but in that case they will not invert.
I think you want them to invert at 60hz on the output side, while simultaneously accepting 50hz on the input side and using that to charge. But I believe they can only do one of those things at a time.
Thanks so much for getting back so fast Peter and with your typically insightful questions and comments. I've parked myself in front of the computer here today and am doing my best to not get called away to the shop floor too much so I can get a bit more caught up. Much as I am loving the whole build process, it is a real treat to be able to do get away from it a bit and get caught up with you and others here.
Re the inverter/charger situation, my understanding is the same as yours, they can only be in one mode at a time, not doing both charging and inverting. That is workable in our case because the only time we would be using the charger side of the MultiPlus units is when we are on shore power which in our case is very infrequent. And when we are on shore power, we are most often leaving the boat somewhere for awhile to go get some Gramma and Grampa time and see some shore side friends and family so we don't need the inverter function when not aboard the boat.
In our setup and use case, when we are aboard we are charging the batteries either by solar/MPPT at anchor or by the alternators when underway and neither of these affect the MultiPlus units. Therefore we mostly only use the MultiPlus as inverters and as per another question earlier, we might be better off separating charging from inverting but there are so many shared parts within each of these individual chargers and inverters, and given how infrequently we will use the charger function, that going with combination inverter/chargers was the better choice for us. Also less units, less external complexity and perhaps less maintenance over time.
Make sense?