Jeremy,
You need to run the qhy5 as an ascom camera.
1. You'll need to install Ascom Platform 6SP1 from here ->
http://ascom-standards.org/
2. You'll have to*install the QHY5 Driver from here ->
http://qhyccd.com/en/top/download/
3. Now install the qhy5 Ascom driver from here ->
http://qhyccd.com/en/top/download/
You have to do it in that order.
Now in phd you can use an ascom camera and select the qhy5.