Logic Monitoring Issue

I have a Steinberg UR44 and I do home recording using Logic 10 on my iMac (running High Sierra). I am able to successfully set input levels on a track in my DAW (Logic) but the mic is hot all the time and I cannot independently adjust the levels in that track. In fact, the mic is on all the time even when Logic is not open so I think it is an interface problem. The UR44 is recognized by my iMac as the I/O decvice (although I do get a message there that no input or out controls have beens selected for this device). I cannot find any controls in the UR44 control panel that will allow me to address this situation. Thoughts?