Siemens Sinumerik 840D Series Function Manual page 104

4 Firmware Drive Functions
4.3 Closed-loop velocity control
4-104
Amplitude log
10
frequency curve
3
Absolute
0
value
-3
[dB]
-10
-20
-30
Phase frequency
curve
180
Phase angle
[degrees]
90
0
-90
-180
Fig. 4-8 Band-stop behavior with bandwidth of 500 Hz, blocking frequency of 1000 Hz
and variation in numerator bandwidth (MD 5516) of 0, 150 and 250 Hz.
Amplitude log
10
frequency curve
3
Absolute
0
value
-3
[dB]
-10
-20
-30
Phase frequency
curve
180
Phase angle
[degrees]
90
0
-90
-180
Fig. 4-9 Frequency response of general band-stop at a blocking frequency of fz=1000
Hz, bandwidth fBn=500 Hz, numerator bandwidth fBz=0 Hz and variation in
natural frequency of (MD 5520) fn=70.7%, 1000% and 141.4%
SINUMERIK 840D/SIMODRIVE 611 digital, HLA Module (FBHLA) - 10.03 Edition
2
10
2
10
2
10
1414
707
2
10
 Siemens AG, 2003. All rights reserved
02.99
10.03
250
150
0
3 log f [Hz]
10
150
250
0
3 log f [Hz]
10
1414
1000
707
3
log f [Hz]
10
1414
1000
707
3
log f [Hz]
10