Lenze 8400 - S-Ramp Time for Jerk Limitation

Lenze · 8400 HighLine · Reference manual · DMS 12.0 EN · 06/2017 · TD23 591
8 Basic drive functions (MCK)
8.8 Positioning
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8.8.2.5 S-ramp time for jerk limitation
The maximum jerk is defined by the selection of an S-ramp time t
jerk_max
, after which the max.
acceleration (a
max
) only is reached.
•The actual jerk time t
jerk
is reduced according to the actual acceleration Acc:
 Without jerk limitation
 With jerk limitation
1Standstill
2. Acceleration with set jerk limitation 6. Deceleration with set jerk limitation
3. Acceleration according to acceleration profile (Acc) 6. Deceleration according to deceleration profile
(Dec)
4. Reduce acceleration (jerk limitation) 8 Reduce deceleration (jerk limitation)
5th Traversing with Vel according to speed profile 9 Standstill (position target reached)
V
t
t
a
t
Jerk
12 3 4 5 6 7 89
Vel
Acc
Dec
a
max
a
max
t


t
jerk_max
t
jerk_max
t
jerk_max
t
jerk_max
jerk
t
jerk jerk
tt
jerk

