I’ve got a “brand new” install of 2 Quattro 24/5000-12 units connected to a Cerbo GX in a motorhome. These are replacing 2 Magnum Inverter/Chargers of slightly smaller size but older technology, thus the brand new in quotes.
The connections, other than the network cable between the units and the Cerbo are the same from old to new. Relatively straight forward install. Disconnect the various AC and DC wires and reconnect them to the appropriate new points. Both Quattros are mounted on the factory hanger in a vertical orientation.
They’re charging 10 (ten) 4D agm batteries when connected to shore power, as it usually is. While it took a couple of days to get both new Quattros installed, I did have a small battery charger connected and going during this time. The initial DC output was 10A or less after the system was configured and running. I don’t exactly remember the amperage, but it wasn’t large.
I’ve been through the MK3 to set one Quattro up as a Master and one up as a Slave and had zero issues doing so.
The Cerbo reads both units and appears to be doing what it’s supposed to do, though this is my first Victron system, so I don’t know what I don’t know.
The firmware is up to date on the Quattros as of today (they already had the latest).
I can’t get the Cerbo to update, but it has version 2.91 so it’s not that old. I get the Cerbo on my wifi, but every time I tell it to “check for updates” I get an “Error during checking” message. I cannot get to the Cerbo from VRM, so it’s a wifi/network issue someplace.
To be honest, I’m not that concerned about that. I’ll get the Cerbo updated when I get to a location with much better wifi abilities.
My real issue that has just quit after 4 days of doing it is the Slave Quattro has been pulsing the charger for a split second every split second. This physically buzzes the Quattro chassis, which is audible from inside the motorhome. Very annoying, to say the least.
It did finally quit for a short period, though comes back. Apparently the Slave acts as the finish charger, pulsing the charge to fully top off the batteries.
Because I’m using agm’s and everything is very simple, I did not make many changes to the original setup. I left everything alone other than creating the Master/Slave relationship. There is a generator, but I haven’t tried it yet. There is no solar, so no issue there.
Is there a setting I’ve missed that would stop the pulsing of the Slave or do I need to rubber mount it to stop the buzzing?
Thank you for your help.