AMIS-30621 Datasheet, PDF (15/59 Pages) AMI SEMICONDUCTOR – LIN Microstepping Motordriver

AMIS−30621
Table 13. POSITION RELATED PARAMETERS
Parameter
Pmax – Pmin
Zero Speed Hold Current
Maximum Current
Acceleration and Deceleration
Vmin
Vmax
Reference
See Positioning
See Ihold
See Irun
See Acceleration and Deceleration
See Minimum Velocity
See Maximum Velocity
Different positioning examples are shown in the table below.
Table 14. POSITIONING EXAMPLES
Short motion.
Velocity
New positioning command in same dir-
ection, shorter or longer, while a motion
is running at maximum velocity.
Velocity
New positioning command in same dir-
ection while in deceleration phase
(Note 22)
Note: there is no wait time between the
deceleration phase and the new acceler-
ation phase.
New positioning command in reverse
direction while motion is running at max-
imum velocity.
Velocity
Velocity
time
time
time
time
New positioning command in reverse
direction while in deceleration phase.
Velocity
time
New velocity programming while motion
is running.
Velocity
time
22. Reaching the end position is always guaranteed, however velocity rounding errors might occur after consecutive accelerations during a
deceleration phase. The velocity rounding error will be removed at Vmin (e.g. at end of acceleration or when AccShape=1).
http://onsemi.com
15