Example 1
The user would like to stop rapidly in a particular situation. To achieve this, the user specifies a large jerk for the lrJerk input variable and removes the xStart start signal. As a result, the maximum deceleration with which the speed is reduced quickly accumulates with the large specified jerk.
Even before the speed has reached "0", the user decides to continue the movement anyway. To achieve this, the user specifies a significantly smaller jerk for the lrJerk input variable and reactivates the xStart start signal. As a result, the deceleration reduces relatively slowly with the small jerk now set such that even after the start signal is activated, negative acceleration is effective for a certain period. This means that the speed may be negative, i.e. the drive reverses.
The diagram below illustrates this scenario.
v(t) | Speed |
a(t) | Acceleration |
j(t) | Jerk |
