Good remark but we have taken this into account. We use limitswitches to make sure the motors are turned off once they go beyond their extremities. Because we use frequency invertors we can set the invertors to react to the limit switches and this response is within miliseconds. I have tested this with full speed and the system works perfectly.
Even without limitswitches there is no direct danger because beyond the extremities the motors will draw to much current and the frequency invertors will signal a fault (overcurrent) and the motors will shut down.
We still have to do some tweaking with X-sim but for the simulator itself everything is finished. Only the signals from X-sim and determining the maximum motorspeed is left. But since the students will have to do this and because it is vacation now it will take a while
. But by the 30th of may everything will be finished since we take part in an event. Should you be interested, you can find the site here:http://dag-van-de-technologie.be/peterheller.html