Siemens Sinumerik 840D Series Function Manual page 101

02.99
10.03
5506
SPEED_FILTER_1_FREQUENCY [n]
PT2 natural frequency for velocity filter 1
Default:
Unit:
2000.0
Hz
5507
SPEED_FILTER_1_DAMPING [n]
PT2 damping for velocity filter 1
Unit: Default:
- 0.7
 Siemens AG, 2003. All rights reserved
SINUMERIK 840D/SIMODRIVE 611 digital, HLA Module (FBHLA) - 10.03 Edition
0...7 index of the parameter set
Minimum: Maximum:
10.0 8000.0
0...7 index of the parameter set
Minimum: Maximum:
0.2 1.0
Setting the machine data to a value of < 10 Hz as the low-pass natural fre-
quency deactivates the filter.
Note
For interpolating axes, please read Subsection 3.9.7.
Amplitude log
10
frequency curve
3
0
-3
Absolute
value
-10
[dB]
-20
-30
Phase frequency
curve
180
Phase angle
[degrees]
90
0
-90
-180
Fig. 4-5 Low-pass filter (PT2) operation at natural frequency (MD 5506) of 1000 Hz and
variations in damping (MD 5507) of 0.2, 0.5 and 1.0
4 Firmware Drive Functions
4.3 Closed-loop velocity control
Related to:
HLA
Data type:
FLOAT
Related to:
HLA
Data type:
FLOAT
2
10
2
10
Cross reference: -
Protection level:
3/3
Active:
Immediately
Cross reference: -
Protection level:
3/3
Active:
Immediately
0.2
0.5
1.0
3
log f [Hz]
10
Natural frequency
1.0
0.5
0.2
3 log f [Hz]
10
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