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Description of Functions
Jolt Filter
The jolt filter is effective in the case of a servo-controlled axis as well as for
open-loop controlled operation of the step drive. In both cases, however, it is
not effective in open-loop control mode due to the fact that in this operating
mode, setpoint input takes place in the actuating signal driver.
Without jolt limitation, the acceleration and deceleration act as abrupt vari-
ables. Jolt limitation allows the break points of a ramp-like speed curve to be
smoothed out for both acceleration and deceleration. This yields particularly
"soft" (jolt-free) acceleration and braking for certain positioning tasks, such
as conveying of fluids.
Jolt time can be set in MD42 as the parameter for jolt limitation.
42
9-74
Interpolator output signal
v
MD42
a
r
v – speed
a – acceleration
r – jolt
t – time
MD
Designation
Jolt time
0...10,000
Jolt filter output signal
Value/Meaning
[ms]
FM 453 Servo Drive / Step Drive Positioning Module
C79000-G7076-C453-01
t
t
t
Unit
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