Program a velocity profile and jerk rate and tune an S-Curve Profile 
 
552  Rockwell Automation Publication MOTION-RM002H-EN-P-February 2018 
If you want  Choose This Profile  Considerations 
•  Fastest acceleration and 
deceleration times 
•  More flexibility in programming 
subsequent motion 
Trapezoidal 
 
{bmct Trapezoidal.bmp} 
Jerk does not limit the acceleration 
and deceleration time. 
•  The Acceleration and Deceleration 
rates control the maximum change 
in Velocity. 
•  Your equipment and load get more 
stress than with an S-curve profile. 
•  Jerk is considered infinite and is 
shown as a vertical line. 
Smoother acceleration and 
deceleration that reduces the stress 
on the equipment and load 
 
S-curve 
Jerk limits the acceleration and 
deceleration time. 
•  It takes longer to accelerate and 
decelerate than a trapezoidal 
profile. 
•  If the instruction uses an S-curve 
profile, the controller calculates 
acceleration, deceleration, and jerk 
when you start the instruction. 
•  The controller calculates triangular 
acceleration and deceleration 
profiles.