Mitsubishi Electric Q173DSCPU Programming Manual page 135

6 CAM FUNCTION
Create cam data for two-way cam operation as shown below.
(a) Stroke ratio data format
Create cam data so that the stroke ratio is 0% at the last point.
(b) Coordinate data format
Create cam data with the same output value for the point where the input
value is 0 and the input value is equal to the cam axis length per cycle.
Cam axis current
value per cycle
Current feed value
(4) Cam data starting point
This setting is only valid for cam data using the stroke ratio data format.
The cam data point corresponding to "Cam axis current value per cycle = 0" can
be set as the cam data starting point.
The default value of the cam data starting point is 0. (The cam axis is controlled
with cam data starting from the 0th point (stroke ratio 0%).)
When a value other than 0 is set for the cam data starting point, cam control is
started from the point where the stroke ratio is not 0%.
The cam data starting point is set for each cam data. The setting range is from 0
to (cam resolution - 1).
Cam axis current
value per cycle
Current feed value
Cam reference
position
(At 1st cycle)
Cam reference
position
(At 2nd cycle)
Cam data
starting point
At 0th point At last point
6 - 6
t
t
Cam reference position
(Does not change because of the
stroke ratio 0% and output value = 0.)
Cam reference
position
(At 3rd cycle)
t
t