At the bottom right corner of the screen in the TestWorks software are the stops indicators.
Click on the Motor Reset button to enable it after an emergency stop. The indicator should look like this:
<fc #4682b4>Then use the manual command to move the crosshead away from the danger.</fc>
If the stop indicator does not turn to green, check that the stop button is released and that the crosshead is not pushing the position limit again. Check the whole set up.
If it still does not turn to green, call MTS helpline. Check MTS contacts on the wiki and make sure you assemble all necessary informations.