Real Master Axis - Baumuller b maXX BM3000 Operating Manual

Description of the Software Modules and Parameters
This requirement applies only if the segment is not skipped before the branching (in this
case 0) was made. This means that the polynomial for the 0 segment must be calculated
at least once for each cycle even at a peak master axis speed.
Effects when reloading curves
Supposed the original curve corresponds to the black curve in
loads a curve during the process, which is in accordance with the course of the red curve.
In contrast to the interlinking change mentioned above here the drive paths and segment
coefficients from 0 to 8 are changed. The interlinking data (successor, predecessor) re-
main identical and no other segment numbers are added to the interlinked curve.
Therefore, the segment 8 is accordant to the red curve in
it was reloaded and combined. The newly combined curve consists of 7 segments,
whereby the segments 1 to 6 were changed due to reloading.
The activating point of the curve is decisive. If the curve is activated in segment 0 then
the segments 5 to 7 and 0 to 3 of the original curves are in the interim buffering. Such as
presented by the interlinking change the active segment 0 is processed, then goes to seg-
ment 1 and during this change the three successors of the segment 1 in the interim buff-
ering are updated. Segment 1 is processed with the previous data before segment 2 of
the combined curve is activated. As the segments smoothly join next to each other the
segment 2 of the combined curved is added to the segment 1 of the original curve. An
offset occurs and therefore the required curve position is not achieved.
If the switching to the combined curve occurs in segment 7, the segments 4 to 7 and 0 to
2 are loaded in the intermediate buffer. Segment 0 follows segment 7. After segment 0
the segment 1 of the combined curve is loaded in the intermediate buffer and is pro-
cessed. In this case the required processing of the curve is achieved.
While reloading the curves the curve segment in which the combined curve is switched
and the following segment in both curves shall be identical in the original as well as in the
combined curve.

4.8.13.9 Real master axis

By the bit 12 of the
Therefore, the device must provide two encoder inputs!
The master axis position of the following axis is coupled to the actual position of the mas-
ter axis encoder at the second encoder input of the device. The parameter
ter axis position revolutions and
this mode by the actual value of the master axis encoder.
Options at the real master axis:
m Inverting the master axis position by bit 14 of the
m Smoothing of the master axis position and compensation of the resulting delay by
The following applies especially in regard to double axis units:
m Here the master encoder of the following axis is the motor encoder of the master axis.
Z122.2–
Z122.2– mode, details see Z122.26–.
bit 17 of the
mode the real master axis can be activated.
Z122.4–
master axis position angle are carried along in
Z122.2–
Parameter manual b maXX BM3000
Document no.: 5.12001.07
ZFig.
219–. The user re-
ZFig. 219–
on page 678 after
Z122.3–
mode.
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