Cast
I dont remember what you were using to power it, (AC or DC) but I think you were running one leg of the 24V through a relay on the SECU-16 to the relay, if this is the case (and you are using DC) you will wire teh positive through the SECU-16 and from the other terminal of the SECU-16 to the WHT/Blue and the negative side of the power supply to the White/yellow. with the relay contact terminals on the Blue, Yellow, Orange (only using two of them (come in on Yellow and out on the switched lead which I believe is the Orange)