what are the right settings are for the velocity, acceleration and steps per unit
You will need to calculate them based on the your specifc machine.
I am not familar with the 120 Turn.
Do you have a manual for the it? If so post it. If not have your company buy / purchase / find one for it.
You will find calculator's in Member's Members Doc's and there are instructions in the manual how to calculate the steps per unit.
Velocity and acceleration are done by trial and error.
RICH