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