Siemens Sinumerik 840D Series Function Manual

10.03
4.3 Closed-loop velocity control
4-103
 Siemens AG, 2003. All rights reserved
SINUMERIK 840D/SIMODRIVE 611 digital, HLA Module (FBHLA) - 10.03 Edition
2000 Hz
1000 Hz
500 Hz
2000 Hz
1000 Hz
500 Hz
Absolute
value
[dB]
log f [Hz]
10
2
10
3
Phase frequency
curve
Phase angle
[degrees]
log f [Hz]
10
2
10
3
-20
-30
-10
-3
0
3
10
-90
-180
0
90
180
Amplitude log
frequency curve
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
100 Hz
500 Hz
1000 Hz
100 Hz
500 Hz
1000 Hz
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
-20
-30
-10
-3
0
3
10
-90
-180
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
02.99

Siemens Sinumerik 840D Series Specifications

General

Axes	Up to 31 axes
Power Supply	24 V DC
Control Type	CNC
Interface	Ethernet, PROFIBUS
Display	TFT color display
PLC	Integrated PLC (programmable logic controller)
Operating Temperature	0°C to 45°C
Relative Humidity	Up to 95% (non-condensing)
Max. Number of Channels	Up to 10 channels