Description of the Software Modules and Parameters
Parameter manual
b maXX
BM3000
Document no.: 5.12001.07
687
4
122.21
Maximum jerk offset
The parameter value in Inc/ms
3
specifies the maximum jerk of the overlaid compensating
movement during the active operation by which the drive overlays the polynomial curve.
The resolution is 16 bit increments/revolution per ms
3
.
122.23
Curve name
The polynomial curve name that was specified in the polynomial curve file is shown here.
122.24
Number of segments
The curve segment count of the curve which is being processed currently.
122.25
Master speed
The parameter shows the current master axis speed in the coupled operation.
It corresponds to the change of the master axis position (
master axis positions
revolutions,
Master axis position angle) per ms. Its resolution is 32 bit-incre-
ments/revolution per ms.
Speeds of up to an half master revolution per
fieldbus task cycle can be dis-
played, only!
122.26
Smoothing time constant master position
Here the time constant for the PT
1
element to smooth the master axis position is set.
Smoothing is provided at a real master axis,
only
and it must be activated by
mode bit 17 = 1.
It is suitable for rotating master axes which are nearly constantly and not for permanent
reversing procedures!
The delay of the smoothed master axis position due to the PT
1
is automatically compen-
sated compared to the original position.
After acceleration procedures the compensation causes an increase of the master axis
speed compared with the original master axis speed with the compensation time. The fol-
lowing axis drive must be able to move continuously by an increased speed. It can be re-
duced by lower acceleration values when starting up.
The compensation time is dependent of the size of the time constant (low time constant
low smoothing effect
quick compensation).