How to wire SWG to Pentair VS

I have a 12,000gal IG plaster pool with a Pentair VS pump and SolarTouch controller. I am using the timer on the pump and not the Intermatic one (the Intermatic is always on).

I am installing an Intellichlor with the power center. My understanding is that you want the SWG to power on when the pump is running. But I don't understand how to make this work without using the Intermatic timer.

How can I wire this so the SWG only has power when the pump is running?

Thanks!