Mitsubishi QD75P1N User Manual page 141

5 DATA USED FOR POSITIONING CONTROL
Pr.35 S-curve ratio
Set the S-curve ratio (1 to 100%) for carrying out the S-curve
acceleration/deceleration process.
The S-curve ratio indicates where to draw the acceleration/deceleration curve
using the sine curve as shown below.
A
B
B/2 B/2
sine curve
S-curve ratio = B/A × 100%
(Example)
Positioning
speed
Positioning
speed
5 - 37
MELSEC-Q
V
When S-curve ratio is 100%
V
b
b/a = 0.7
a
When S-curve ratio is 70%
t
t