Siemens SINUMERIK 840C Installation Instructions Manual page 472

04.96
1201
Input of configuration of 4 current setpoint filters. Band-stop and low-pass filters are available.
The adjustable filter parameters are entered in the appropriate machine data.
1st filter
2nd filter
3rd filter
4th filter
Note:
Before the filter type is configured, the appropriate filter machine data must be input.
1202
Input of natural frequency for current setpoint filter 1 (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.
Note:
Current setpoint filter 1 is preset to the current controller sampling time MD 1000 = 125 µs for
damping of the encoder torsional natural frequency.
For a current controller sampling time of MD 1000 = 62.5 µs, we recommend that the natural
frequency be changed to f
controller.
1203
Input of damping for current setpoint filter 1 (PT2 low-pass). The filter is activated via machine
data MD 1200 and MD 1201. 0.7
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SINUMERIK 840C (IA)
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Type current setpoint filter
Default value Lower input limit
Low-pass Low-pass
Bit 0
Bit 1
Bit 2
Bit 3
Natural frequency current setpoint filter 1
Default value Lower input limit
2 000
= 3000 Hz to achieve an optimum dynamic response of the
o
Damping current setpoint filter 1
Default value Lower input limit
0.7
ˆ =
ManualsBase.com
7 Drive Machine Data (SIMODRIVE Drive MD)
Upper input limit
Band-stop
0 Low-pass (see MD 1202/1203)
1 Band-stop (see MD 1210/1211)
0 Low-pass (see MD 1204/1205)
1 Band-stop (see MD 1213/1214)
0 Low-pass (see MD 1206/1207)
1 Band-stop (see MD 1216/1217)
0 Low-pass (see MD 1208/1209)
1 Band-stop (see MD 1219/1220)
Upper input limit
0 8 000
Upper input limit
0.05 5
ˆ =
70 % 1 100 %
6FC5197- AA50
7.2.2 FDD MD (data description - SW 3)
Active
at once
Units
–
Active
at once
Units
Hz
Active
at once
Units
–
7–57