ADLINK HSL-4XMO - Manual (Page 51)

Operation Theory 41
Figure 4-8: Encoder Diagram
If this ratio is not set before issuing the start moving command, it
will cause problems when running in “Absolute Mode” because the
HSL-4XMO won’t recognize the actual absolute position during
motion.
X Relative Functions:
HSL_M_start_ta_move()
HSL_M_start_tr_move()
HSL_M_motion_done()
HSL_M_set_feedback_src()
HSL_M_set_move_ratio()
S-curve Profile Motion
This mode is used to move a single-axis motor to a specified posi-
tion (or distance) with a S-curve velocity profile. S-curve accelera-
tion profiles are useful for both stepper and servomotors. The
smooth transitions between the start of the acceleration ramp and
transition to constant velocity produce less wear and tear than a
trapezoidal profile motion. The smoother performance increases
the life of the motor and the mechanics of the system.