Connect script issues with ZSSC3281 kit

I wrote I connect script that does exactly what the script in log file created and initialization of the ZSSC3281.

The difference is the that the ZSSC3281 kit turn all the 4 LEDs on the ZSSCSRBV3 board (5V,12V,KS5V and KS12v) and my script turn on only 3 LEDs, and not the KS12V LED.

That is missing in the script? 

What the KS5V and KS12V LEDs  role in the board?

Elik