Siemens SINUMERIK 840C Installation Instructions Manual page 543

7 Drive Machine Data (SIMODRIVE Drive MD)
7.3.2 Drive MD (data description)
1514
Default value
3 500.0
Input of block frequency for speed setpoint filter 1 and parameterization as simple band-stop
filter. The filter is activated via machine data MD 1500 (number of setpoint filters) and MD
1501 (type speed setpoint filter). The machine data MD 1516/MD 1519 (bandwidth numerator
speed setpoint filter) and MD 1520/MD 1521 (band-stop filter natural frequency speed setpoint
filter) keep their default values.
Formula:
1+s · (2 · · fbz/(2 · · fz)
H(s) = ––––––––––––––––––––––––––––––––––––––––––––––––
1+s · (2 · · fbn/(2 · · fn)
Input:
fz = MD 1514/1517
fbn = MD 1515/1518
fbz = MD 1516/1519
fn = MD 1520/1521
MD 1520 (MD 1521)
fn = ––––––––––––––––––– · MD 1514 (MD 1517) [%]
100
Example:
SYNTHESIS
20.0
dB
-60.0
5
SYNTHESIS
180
Phase
Deg
-180
5
7–128
Block frequency speed setpoint filter 1
Lower input limit
1.0
2 2 2
)+s · 1/(2 · · fz)
2 2 2
)+s · 1/(2 · · fn)
Blocking frequency speed setpoint 1/ speed setpoint 2 [Hz], (point
of resonance)
Bandwidth denominator filter 1/filter 2 [Hz]
Bandwidth numerator filter 1/filter 2 [Hz]
Band-stop filter natural frequency filter 1/filter 2 [%] percentage with
reference to MD 1514 or MD 1517
Polynomial
Log Hz
Polynomial
Log Hz
©
Siemens AG 1992 All Rights Reserved
Upper input limit
7 999.0
fz = 900 Hz MD 1514/1517
fbn = 600 Hz MD 1515/1518
fbz = 0 Hz
fn = 100 % MD 1520/1521
4 k
4 k
SINUMERIK 840C (IA)
04.96
Active
at once
Units
Hz
MD 1516/1519
(Default value)
(Default value)
6FC5197- AA50