Schneider Electric SW4048 fault and not recognized by ComBox
I'm solar systems installer, sold my first Conext SW 4048 and MPPT 60 150 last november to a client. It was installed with a ComBox and an SCP panels to remotely manage.
Xanbus connection was as follows:
MPPT -> SW4048 -> ComBox -> SCP
Since first day, it was working well, as expected. But on Dec 28th, during a warm day, the system has been shutting down because of AC overcharge, probably related to power decrease on high temperature conditions. After three times, SW inverter automatically turned off, and Fault light was turned on.
I went to client's home the day after to check the system, and found SCP turned off too, and it looks as die, tried to reconnect without lucky. No way to restart SCP.
Also, ComBox is only running using AC plug, it wasn't working with just Xanbox cable, as we tried during setup, where we found SW can supply energy for ComBox.
We have tried several times to reset SW, by pressing "clear fault" button, by turning all connections off and reconnect again, but it persists with fault light. Sometimes blinking, and sometimes static.
Since SCP is died, I went over ComBox to find out what is happening, but ComBox is not recognizing SW on devices list, it just recognizes MPPT, even when SW is in the middle between them.
MPPT is perfectly working, it keeps batteries charging, nothing happened to it. ComBox is only seeing it.
So, is there any "force reset" procedure to do?
Why ComBox is not connecting to SW?
What can I do with SCP?
The system was just working fo a month, and all was working fine.
Appreciate your help, Thank you.