I would not power that up, as by the looks of things, the drivers will release lots of smoke!

Do you have a link to the power supply?
By the looks of it, you've wired the drives up to what should be the AC input to the toroid. The two pair of wires will get connected in either parallel or series, depending on if you want 110VAC or 240VAC.
The main DC output I'd say is from the 4 terminal block at the bottom right, with the other two outputs to the left being for lower voltage/current outputs. 5 and 12VDC?