In an embodiment of the present invention, the control system comprises a load measuring device, a summing junction, {TAIL ~ a logic control unit} and a process controller that encompasses a motor controller and {HEAD ~ a brake controller} 
In an embodiment of the present invention , the control system comprises a load measuring device , a summing junction , { TAIL ~ a logic control unit } and a process controller that encompasses a motor controller and { HEAD ~ a brake controller }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD