{TAIL ~ The flux sensors} generate {HEAD ~ signals} to indicate step movement and direction, and a digital comparator compares the contents of an up/down counter with the contents of a step command counter 
{ TAIL ~ The flux sensors } generate { HEAD ~ signals } to indicate step movement and direction , and a digital comparator compares the contents of an up / down counter with the contents of a step command counter
TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD 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 OTH OTH