Siemens Sinumerik 840D Series - Page 101

10.03
4.3 Closed-loop velocity control
4-101
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SINUMERIK 840D/SIMODRIVE 611 digital, HLA Module (FBHLA) - 10.03 Edition
5506
SPEED_FILTER_1_FREQUENCY [n] 0...7 index of the parameter set
Cross reference: -
PT2 natural frequency for velocity filter 1
Related to:
HLA
Protection level:
3/3
Unit:
Hz
Default:
2000.0
Minimum:
10.0
Maximum:
8000.0
Data type:
FLOAT
Active:
Immediately
5507
SPEED_FILTER_1_DAMPING [n] 0...7 index of the parameter set
Cross reference: -
PT2 damping for velocity filter 1
Related to:
HLA
Protection level:
3/3
Unit:
-
Default:
0.7
Minimum:
0.2
Maximum:
1.0
Data type:
FLOAT
Active:
Immediately
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
frequency curve
Absolute
value
[dB]
log f [Hz]
10
2
10
3
Phase frequency
curve
Phase angle
[degrees]
log f [Hz]
10
2
10
3
0.2
1.0
0.5
1.0
0.5
0.2
Natural frequency
-20
-30
-10
-3
0
3
10
-90
-180
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
02.99