Which country are you located in?
If you are in the US then use one leg of the 220v and the Neutral as you have done. The ground should be wired into the building as a separate thing.
In the US 220v we use two 110v legs which are out of phase to each other to produce 220 overall. You have a neutral line and from it to either of the legs will give 110v and between the two 110v legs you get 220v.