Siemens SINUMERIK 840C Installation Instructions Manual page 474

04.96
1208
Input of natural frequency for current setpoint filter 4 (PT2 low-pass). An entry of < 10 Hz as
the natural frequency of the low-pass filter initializes the filter as a proportional element with a
gain of 1 independently of the associated damping. The filter is activated via machine data MD
1200 and MD 1201.
1209
Input of damping for current setpoint filter 4 (PT2 low-pass). The filter is activated via machine
data MD 1200 (selection current setpoint filter) and MD (type current setpoint filter) 1201.
1210
Input of block frequency for current setpoint filter 1 (band-stop). When block frequencies of <
10 Hz are input, the filter is deactivated (proportional element with a gain of 1). The filter is
activated via machine data MD 1200 and MD 1201.
Note:
The maximum block frequency input value is limited by the sampling frequency of the control
(MD 1000) (parameterization error).
MD 1210 <
MD 1000 = T
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Siemens AG 1992 All Rights Reserved
SINUMERIK 840C (IA)
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Natural frequency current setpoint filter 4
Default value Lower input limit
0
Damping current setpoint filter 4
Default value Lower input limit
1.0
Block frequency current setpoint filter 1
Default value Lower input limit
3 500.0
1
–––––––– = –––––––––
2 x MD 1000
62.5 µs
=
sampl.
125.0 µs
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7 Drive Machine Data (SIMODRIVE Drive MD)
Upper input limit
0 8 000
Upper input limit
0.05 5
Upper input limit
1 7 999.0
1
2 x T
sampl.
8000 Hz
=> MD 1210 <
4000 Hz
6FC5197- AA50
7.2.2 FDD MD (data description - SW 3)
Active
at once
Units
Hz
Active
at once
Units
–
Active
at once
Units
Hz
7–59