| 摘要 |
<p>PURPOSE:To eliminate the displacement of a stopping position due to a variation in the diameter of a wheel by counting pulses from a pulse encoder while a predetermined length range of a correcting member to be detected is being detected to correct a set value. CONSTITUTION:When a traveling distance value L to a destination A is input, LX(number-of-pulse conversion coefficient K) is calculated, and converted to the number of pulses (Px). When a moving device 1 passes the set position of a plate 2 to be detected, a photoelectric switch 3 rises at the starting position of the plate 2, and falls at the ending position. While the switch 3 is ON, i.e., while the device 1 travels at a length l of the plate 2, the number of pulses from a pulse encoder 5 is counted to obtain the normal number of pulses (Py) per predetermined distance l at that time. If Py-f.R exceeds an allowable error range, the number of set pulses Px is corrected.</p> |
