After installation it worked fine.
But some day display turned 0V and 0A.
I think wireless connection between Display module and Main module had been disconnected.
I tried to search main module using “SFH” functionality, I set SFH value to 0 and changed it 1,2,…125, but display was still 0V.
I think my procedure is something wrong.
Could you show me how to reconnect to Main module from Display module.