Yaskawa MotionWorks IEC Hardware - Manual (Page 43)

MotionWorks IEC Hardware Configuration – 2013-03-26 40
Therefore, the number of pulses in one rev of the external encoder = 5000 x
256 = 1280000 pulses / rev.
The distance covered in one revolution of the fully closed encoder = 1.25” x
Pi x 25.4 = 99.7 mm.
99.7 mm --> 1280000 pulses.
1 mm --> 1280000/99.7 = 12833.36 pulses.
The configuration settings for this example are shown in the figure below.
Pn20A = The number of external encoder pitches per rev of the motor.
1 rev of motor = 50.265 mm.
Therefore, (99.7/50.265) revs of the motor = 99.7 mm (distance for one rev
of the fully closed encoder)
99.7/50.265 revs of the motor = 5000 pitches.