Training new operators on servo presses is a different animal than mechanical presses. The biggest gap I see is understanding cause and effect — on a mechanical press the operator just loads parts and hits the button. On a servo they need to understand what the motion profile is doing and why.
Our training program for new hires (assuming they have basic press experience):
Week 1: HMI navigation and safety systems. They need to be able to read the force-displacement curve on screen and understand what a normal curve looks like vs an abnormal one. This is the single most important skill — if they can spot a bad curve they can catch problems before parts go bad.
Week 2: Die setup and shut height adjustment. Supervised die changes with sign-off. We do not let anyone run unsupervised until they have done 10 die changes with zero errors.
Week 3-4: Motion profile basics. They do not need to program profiles but they need to understand what dwell does, what approach speed vs working speed means, and why you cannot just crank SPM to max. We had an operator blow a nitrogen spring because he set approach speed too high and the die could not keep up.
The one thing I would add to what carlos_mx said: make them do troubleshooting scenarios. Give them a press with a deliberately wrong parameter and have them find it. That builds real understanding faster than any classroom session.