In this blog we describe the steps in order to run on or off the Digital Input Control for Hanyoung Nux VX series Controllers

If you want to turn off the DI1,

When the DI1 and COM is linked, the DI1 will come first.

There is a video about setting the DI1 up on Youtube, but it’s only in Korean. I’ll put down the link anyway for you to refer to.