Siemens SINUMERIK 808D Parameter Manual page 251

32402 AX_JERK_MODE
- Filter type for axial jerk limitation
CTEQ
- -
Description:
Filter type for axial jerk limitation:
1:
2:
3:
Type 2 requires more computing time, but causes smaller contour errors for the same
smoothing effect, or smoother movements at the same accuracy.
Type 2 is recommended; type 1 is set as a default value for reasons of compatibility.
The maximum jerk is set in the time constant MD32410 $MA_AX_JERK_TIME.
Recommended values for type 1:
Min. 0.03 s; max. 0.06s.
Recommended values for type 2:
Min. 1 position-control cycle; max. 16 position-control cycles
At a position-control cycle of 2ms, this corresponds to 0.002 to 0.032 seconds.
Type 3 requires the setting of
MD32410 $MA_AX_JERK_TIME
To parameterize a simple bandstop filter, we recommend setting MD32410
$MA_AX_JERK_TIME=0,
However, MD32410 $MA_AX_JERK_TIME > 0 is used to set a specific denominator frequency,
which makes it possible to implement a bandstop filter with amplitude increase for
frequencies beyond the blocking frequency.
MD32402 $MA_AX_JERK_MODE is only active if MD32400 $MA_AX_JERK_ENABLE has been set to
1.
Special cases, errors:
The machine data must be same for all axes of an axis container.
Related to:
MD32400 $MA_AX_JERK_ENABLE
MD32410 $MA_AX_JERK_TIME
and for type 3:
32410 AX_JERK_TIME
s Time constant for axial jerk filter
-
- -
Description:
Time constant of the axial jerk filter which causes a smoother axis setpoint
characteristic. The jerk filter will only be active, if the time constant is higher
than a position control cycle.
Not active in case of errors that cause a change in follow-up mode (for example
EMERGENCY STOP99:
Special cases:
Machine axes that are supposed to be interpolating with one another, must have the same
effective jerk filtering (for example the same time constant for tapping without
compensating chuck).
Related to:
MD32400 $MA_AX_JERK_ENABLE (axial jerk limitation)
Parameter Manual
List Manual, 01/2017
2
2nd order filter (as in SW 1 through 4)
Moving averaging (SW 5 and higher)
Bandstop filter (SW 6 and higher)
0.001
A07, A04
BYTE
2 2
A07, A04
DOUBLE
0.0 -
Machine data
3.4 Axis-specific machine data
B2, G2, B3
PowerOn
1/1 M
G1, TE1, S3, B2, G2
NEW CONF
1/1 M
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