I'm planning to control a VS-3050 with a Suntouch controller. I have a simple system with solar and a sweep. For a few reasons, I'd like to run the power for all through the Suntouch. One PB suggested running the power through the Pump relay, and controlling the VS-3050 speeds with the Suntouch via the com port. That would be the easiest and makes the most sense to me. Though, the manual and folks on this forum suggest the VS-3050 should have continuous power. Option 2, use Aux 1 to supply continuous power to the VS-3050, and control speeds via the com port. Aux 1 allows for manual on/off via the panel. Aux 2 would control the sweep.
OK, folks, point out the fatal flaws, you'll make my electrician happy!