question

jrrujano avatar image

Quattro 48/5000/70-100/100 120V Bulk and absorption LEDs flash synchronously and Vdc shown at VE Configure monitor is different to the battery actual voltage

Problem description:

After installation the equipment performed fine, completing the battery charging cycle. After the first grid AC power outage it switches to the inverter function and supplied energy from the batteries to the loads for about four (hours). When the grid AC power returns it switched to the charger function but showing continuous LED light in the mains on indicator and the bulk and absorption LEDs flash synchronously (simultaneously). Low battery is shown shortly on startup.

After switching off and on the equipment the error indication remains and the batteries are not charged. After recharging the batteries using an external charger and reconnecting them to the Quattro it doesn’t start using the manual switch.

Using VE Configure III the Quattro restarted and it shows that all default setting are OK. However the monitor shows DC voltage Vdc = 24.9V which is completely different to the 48 V measured using an external voltage meter. The SoC bar I the monitor also shows the battery charged . Bulk and absorption LEDs remains flashing synchronously.

Can anyone provide any orientation about this failure and its resolution procedure?


SOCvoltageVE.Buserrornot charging
leds.jpg (55.0 KiB)
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1 Answer
Paul B avatar image

First Down load a App to your phone its call victron toolkit. this app will tell you what the flashing LEDs mean.

Also check the voltage at the Quattros main battery connections connections and make sure its the same as the battery voltage. at the batteries

Then check the Voltage reference wires (Vsense) and all connections and the fuse associated with the voltage reference wire, also double check that the push in vsense connections are fully home

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