Siemens Sinumerik 840D Series Function Manual page 103

02.99
10.03
 Siemens AG, 2003. All rights reserved
SINUMERIK 840D/SIMODRIVE 611 digital, HLA Module (FBHLA) - 10.03 Edition
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. 4-6 Frequency response of undamped band-stop with a bandwidth of 500 Hz and
variations in blocking frequency (MD 5514) of 500 Hz, 1000 Hz, 2000 Hz
Amplitude log
10
frequency curve
3
Absolute 0
-3
value
[dB]
-10
-20
-30
Phase
frequency curve
180
Phase angle
[degrees]
90
0
-90
-180
Fig. 4-7 Frequency response of undamped band-stop at a blocking frequency of 1000
Hz and variations in bandwidth (MD 5515) of 100 Hz, 500 Hz, 1000 Hz.
The bandwidth is the difference between the two frequencies with 3 dB drop in
amplitude.
4 Firmware Drive Functions
4.3 Closed-loop velocity control
500 Hz
2
10
500 Hz
1000 Hz
2
10
1000 Hz
2
10
100 Hz
1000 Hz
500 Hz
2
10
1000 Hz
2000 Hz
3 log f [Hz]
10
2000 Hz
3 log f [Hz]
10
100 Hz
500 Hz
3
log f [Hz]
10
3 log f [Hz]
10
4-103