{HEAD ~ The current position} of {TAIL ~ a movable machine part} is detected and compared with the limit value and when it is detected by the processor that the current position of the movable machine part has reached the limit value, a trace feed is switched to a pick feed 
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{ HEAD ~ The current position } of { TAIL ~ a movable machine part } is detected and compared with the limit value and when it is detected by the processor that the current position of the movable machine part has reached the limit value , a trace feed is switched to a pick feed
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL 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 OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH