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07.97
7 Drive Machine Data (SIMODRIVE Drive MD)
7.3.2 Drive MD (data description)
Note:
The maximum block frequency input value is limited by the sampling frequency of the servo
control (MD 1001) (parameterization error).
a a a a a a a a a a a a a a a
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a a a a a a a a a a a a a a a
MD 1514 <
a a a a a a a a a a a a a a a a a a a a a a a a a a a a a
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a a a a a a a a a a a a a a a a a a a a a a a a a a a a a
2 x T
sampl. speed controller
a a
a a
a a
a a
a a
1
a a a a a a a a a a a a a a a a a a a a a a a a a a a
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a a a a a a a a a a a a a a a a a a a a a a a a a a a
T
sampl.
(MD 1001)
a a a a a a a a a a a
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a a a a a a a a a a a
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62.5
µ
s
125.0
µ
s
a a a a a a a a a a a a a a a a a a a
a a a a a a a a a a a a a a a a a a a
a a a a a a a a a a a a a a a a a a a
a a a a a a a a a a a a a a a a a a a
MD 1514
a a a a a a a a a a a
a a a a a a a a a a a
a a a a a a a a a a a
a a a a a a a a a a a
a a a a a a a a a a a
a a a a a a a a a a a
a a a a a a a a a a a
a a a a a a a a a a a
8000 Hz
4000 Hz
a a a a a a a a a a a a a a a a a a a a a
a a a a a a a a a a a a a a a a a a a a a
a a a a a a a a a a a a a a a a a a a a a
a a a a a a a a a a a a a a a a a a a a a
= MD 1001 [ s ]
Bandwidth speed setpoint filter 1
1515
Default value
Lower input limit
Upper input limit
Units
500.0
5.0
7 999.0
Hz
Active
at once
Input of -3dB bandwidth for speed setpoint filter 1 (band-stop). The filter is activated in
machine data MD 1500 (No. speed setpoint filters) and MD 1501 (Type speed setpoint filter).
Note:
When 0 is entered for the bandwidth, the filter is parameterized as a proportional element with
a gain of 1.
Numerator bandwidth speed setpoint filter 1
1516
Default value
Lower input limit
Upper input limit
Units
0.0
0.0
7 999.0
Hz
Active
at once
Input of numerator bandwidth for the damped band-stop.
The ratio of the bandwidth numerator to the bandwidth denominator determines the drop in the
amplitude response at the blocking frequency. If fbz < fbn, the amplitude drops and if fbz >
fbn the amplitude rises. The latter case is unrealistic because it would cause an excessive
frequency response and therefore overshooting in the controller.
If fbz=fbn, the amplitude remains constant over the entire frequency range.
Formula:
1+s · (2 ·
· fbz/(2 ·
· fz)
2
)+s
2
· (1/(2 ·
· fz)
2
)
1 + s · (2 · Dz/2 ·
· fz) + s
2
· 1/(2 ·
· fz)
2
–––––––––––––––––––––––––––––––––––––––––––––––––
––––––––––––––––––––––––––––––––––––––––––––
1+s · (2 ·
· fbn/(2 ·
· fz)
2
)+s
2
· (1/(2 ·
· fz)
2
)
1 + s · (2 · Dn/2 ·
· fz) + s
2
· 1/(2 ·
· fz)
2
Input:
fz
: Blocking frequency
MD 1514/1517
Dz
: Damping numerator
fbz = 2 · Dz · fz
: Bandwidth numerator
MD 1515/1518
Dn
: Damping denominator
fbz = 2 · Dn · fn
: Bandwidth denominator MD 1516/1519
fn=100%
: Band-stop filter natural
frequency
MD 1520/1521 (default value)
©
Siemens AG 1992 All Rights Reserved 6FC5197- AA50
7–129
SINUMERIK 840C (IA)
Summary of Contents for SIMODRIVE 611-D
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