Rockwell Automation GMLC Reference Manual - Manual (Page 111)

Publication GMLC-5.2 - November 1999
74 Configuring Axis Use
Parabolic
You will most frequently use a parabolic velocity profile to optimize the
motor selection, because it conforms most closely to the torque/speed
curve for most motors. However, the parabolic velocity profile sacrifices
acceleration and deceleration time compared to the trapezoidal profile. In
addition, the speed (velocity) of parabolic motion cannot be changed once
the motion is started—except to zero—and the same acceleration and
deceleration rate must be used. (Any deceleration value is ignored in
subsequent Move or Jog Axis blocks.)
To configure the Positioning page, make entries in the following fields:
Move
Select the default motion profile for servo axis motion commanded by a
Move Axis block:
• Trapezoidal
• S-Curve
Velocity
Time
Jerk
Accel
Time
Time