Operating Modes
Parameter manual b maXX BM3000
Document no.: 5.12001.07 Baumüller Nürnberg GmbH
564
of 820
4.8
m Sequence of events for an absolute positioning task (Target Mode = 0)
Figure 187: Sequence of events for absolute positioning
Description of the transitions:
5000_0151_rev02_int.cdr
t
v
2311253464
118.1
Function completed
Positioning status bit no. 1
108.3
Target position reached
Statusword . 10bit no
Speed profile of drive
Data
108.1
Start positioning
Controlword bit no. 11
Transition Meaning Comment
1 Start positioning L H Positioning data valid; start request transmitted to control word.
2 Function ended H L and
target position reached H L
Positioning is started. Start Positioning can be reset.
Between (1) and (2) there is a delay of up to 1 ms!
3 Function ended L H Set Value setting by the ramp generator ended.
Caution: Position set values may continue to be issued via the smoothing generator;
see Positioning Status Bit 1
4 Target position reached L H Is set correspondingly later than the function ends, depending on settings for Position-
ing Window and Positioning Window Time.
5 New target position valid Start bit is set; new target position transmitted or the positioning set has been changed
(a reversal of the direction of revolution takes place in the example for this reason).
6 New positioning speed valid Start bit is set; a new positioning speed has been transmitted to positioning set 0.
NOTE!
To alter the current positioning speed or the current acceleration values during the
procedure, Bit 11 of the control word must be set.
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