The DELTA system has a built in function which activates when the loco begins to move. If you wanted to connect this function to the control button for functions on the Digital Control Unit you would need to connect additional electronics to the decoder and do some minor rewiring.

The attached lighting schematic shows the DELTA 6603 decoder with solder pads and how it is normally wired.

The changes necessary on this schematic to activate the functions on the chip are shown in the attached conversion schematic.

If you want to control this function from the DELTA Controller (6604), rather than the Digital Control Unit, that is also possible. Simply connect momentary push button switches to pins 25 and 26 of the main chip as shown in the attached 6604 schematic.