Matrix 5000 Battery Charger control question.
How can I control ( lower the voltage or disconnect) the battery charger?
I have a few of these Matrix units and I have played with them for years. Currently, I have one that is connected to my solar system and powers my home. I have managed to interface it quit successfully with all my auto control with the exception of one thing, the charger.
I really enjoy the engineering that went into this unit. It is practically RF nosy free!
Currently, I have to manage the input manually to charge my batteries (Powersafe 1500Ah) pack connected to a Smartcell manager board. This is so the solar panels can charge them instead of the UPS.
It would be much better if I could just lower the charge voltage on the UPS or if I could keep the inputs connected and just install a switch ore?? to shut down the charger manually.
I have the Matrix installed as if it were a Genset. I built the custom controls to manage the Auto switches and it all works very well.
In the past 20 or more years I have tried to get help from the engineering team at APC but for some reason APC does not want to give up any schematics so I could figure things out. Maybe someone on this blog has some ideas.
Unfortunately there isn't any supported way to lower the charge voltage. If you remove the electronics unit (top portion of the unit with the display) you should be able to disable the charger completely, though. Not sure if that helps. ?:|