7-18
Operating Modes
MPH-02, MPB-02, MPD-02
DOK-INDRV*-MP*-02VRS**-FK01-EN-P
Command Value Processing in Position Control
Note:
The command value cyclically transmitted by the control unit is
displayed in parameter
P-0-0047, Position command value
control
.
The internal position command value at the position controller
is displayed in parameter
P-0-0434, Position command
value controller
.
The position command values preset by the control unit can be smoothed
via an average value filter that can be set (
P-0-0041, Position command
average value filter time constant
; moving average filter for a maximum
of 64 values). The resulting filter degree is displayed via
P-0-0042,
Current position command average value filter order
. This filter can
be used for jerk limitation.
Note:
The PT1 filter for jerk limitation that can be parameterized via
P-0-0099, Position command smoothing time constant
only takes effect for linear fine interpolation.
The position command value cyclically transmitted in the NC cycle time by
the control unit can be fine interpolated in the drive, if necessary.
Via
P-0-0187, Position command processing mode
it is possible to
switch between
•
cubic fine interpolator (according to contour),
•
linear fine interpolator or
•
cubic
approximator.
See also Parameter Description "P-0-0187, Position command
processing mode"
Note:
It is recommended to use the cubic fine interpolator according
to contour (default setting) because it provides clearly higher
quality of velocity and acceleration feedforward, particularly
with lagless position control.
Command Value Filtering (Jerk
Limitation)
Fine Interpolation of the Position
Command Value
Courtesy
of
CMA/Flodyne/Hydradyne
▪
Motion
Control
▪
Hydraulic
▪
Pneumatic
▪
Electrical
▪
Mechanical
▪
(800)
426-5480
▪
www.cmafh.com