I have a scenario where I need to disable charging functionality within a quattro inverter/charger based on certain conditions but maintain all other AC functionality like passthru, power assist sustain etc. Is this possible?
Hi Daniel,
Presumably you want to automate this?
In the Quattro take a look at one of the Assistants there called âCharge Current Controlâ. It requires input from the Quattroâs Aux (or similar) port, but for full disable the port could be just shorted, then the Assistant set to disable charge on that condition.
You didnât explain the conditions you want to switch with, but this port could be wired across to a GX relay, or even the output port of another Assistant. Or something completely external.
No Voltage need be applied, but if you really want to delve, it can also work charging proportionally to an applied (low) V.
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Thanks for your reply John.
The setup we have is three Pramac OFF GRID LX 60/125 Li battery units that are all connected to a single backup generator on the same input bus and the ac output side is connected to an electrically isolated section of the building site.
The site loads on each section of the site vary at different times of the day. The problem we are having is that not every battery needs charging at the same time and when one battery calls for the generator to start as a result of the SOC setpoint or high AC load generator request, all the other batteries start to take charge as well. if the the battery that is not calling for the generator is at 92% and the one that is calling for the generator is at 30% SOC then the one that is higher starts charging and ends up at 100% and sits there for possibly most of the day.
I wrote some node red code to switch the inverter from inverter only to on when the generator is called for based on a low SOC request which works great but when the inverters are in inverter only and the generator is called for due to high AC load, if I dont switch the inverters back to âonâ then I dont get any AC connection and the ac not detected alarm comes up.
If the battery has charged up to 100% overnight and then the load comes up in the morning with the SOC at say 90%, then ideally i want the generator to connect to the load through the inverter and the battery just to sit there and either have its SOC slowly decrease or stay as is and then when the high AC load condition passes, it goes back to normal operation discharging the battery.
