UR28M phantom power question?

Hey,

I have my Blue Robbie Mic-Pre connected to Input 1 (XLR)
Standard cheapo condenser mic connected to Input 2 (XLR)

I want to use my cheapo mic for Talkback and record vocals with my Blue Mic-pre.
Will turning on the mic-pre on my UR28M damage Robbie?
Robbie’s phantom power is turned OFF.

Best,