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