What messages does the machine give you on startup? Does it require that you home all the axis (to some homing switches) before it says it is ready?
If you have a program in machine memory, it should be ready to run, but as a precaution, it is always a good idea to not have any tools in the spindle at this point, and have the knee lowered as far down out of harm's way, as you possibly can.
Somewhere on the operator panel, there should be a knob, with a "mem" setting. Perhaps another knob with "Single" and "Auto" etc. I have never seen one of these, so I don't know what the operator panel looks like.
Anyway, here is your thread bump
First you get good, then you get fast. Then grouchiness sets in.
(Note: The opinions expressed in this post are my own and are not necessarily those of CNCzone and its management)