6. APPLICATION OF FUNCTIONS
6 - 11
2) Cam standard position
The cam standard position is calculated as follows:
Cam standard position = The preceding cam standard position + (Cam stroke amount × Stroke
ratio at the last point)
t
t
Cam standard
position
(First cycle)
Cam standard
position
(Second cycle)
Cam stroke amount × Stroke ratio at the last point
Feed current value
Cam axis
one cycle current value
Cam standard
position (Third cycle)
For to-and-fro control, create the cam data in which the stroke ratio at the last point is 0%.
t
t
Feed current value
Cam axis
one cycle current value
Cam standard position
(Does not change because the stroke ratio is 0%.)