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Functions, monitoring and protective functions
9.4 Extended functions
Figure 9-40
Jerk limitation can be used to achieve a ramp-like change of both variables, which ensures
"smooth" acceleration and braking as shown in the diagram below. Ideally, acceleration and
deceleration should be linear.
Figure 9-41
The maximum inclination (r
for both acceleration and braking. The resolution is 1000 LU/s
permanently, set parameter p2575 (Activate jerk limitation) to 1. In this case, limitation
cannot be activated or deactivated in traversing block mode by means of the command
"JERK" Switching the limitation on/off in the traversing block mode requires parameter p2575
(Activate jerk limitation) to be set to zero. The status signal r2684.6 (Jerk limitation active)
indicates whether or not jerk limitation is active.
The limitation is effective for:
● Jog mode
● Processing traversing blocks
● Direct setpoint specification/MDI for positioning and setting up
● Reference point approach
● Stop responses due to alarms
Jerk limitation is not active when messages are generated with stop responses OFF1 /
OFF2 / OFF3.
636
Jerk limitation deactivated
Jerk limitation activated
) can be set in parameter p2574 (Jerk limitation) in the unit LU/s
k
. To activate the limitation
3
Converter cabinet units
Operating Instructions, 11/2017, A5E36652151A
3
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