You can use 'moveDisabled' property:
var e = new DayPilot.Event({
start:new DayPilot.Date(),
end:(new DayPilot.Date()).addHours(5),
id: DayPilot.guid(),
text: "New Event",
resource:'E',
moveDisabled: true
});
See also:
http://api.daypilot.org/daypilot-event-data/