Siemens SINUMERIK 840C Installation Instructions Manual page 457

7 Drive Machine Data (SIMODRIVE Drive MD)
7.1.2 MSD MD (data description - SW 3)
275
Default value
50
Input of hysteresis for the cut-in speed set in machine data MD 274.
276
Default value
300
Input of filter frequency. The 3dB transition frequency for the low-pass filter or the mid-
frequency for the bandstop is specified here (see MD 280) for the digital filter in the torque
setpoint channel.
277
Default value
1.00
Input of filter quality for the bandstop in the torque setpoint channel (see MD 280).
1.00: Basis quality=1
278
Correction P-gain current controller motor 2
Default value
0
The current controller P-gain, which is calculated according to the motor, converter and
converter switching frequency, can be corrected by an offset in this machine data. A positive
value in MD 278 results in a higher gain and a negative value in a lower gain than the gain
value calculated. The total gain obtained by adding the calculated value and the correction in
MD 278 is displayed in MD 316.
280
Default value
0000
The digital filter is activated and deactivated in this machine data. A digital filter can be
implemented in the torque setpoint channel with machine data MD 276, MD 277 and MD 280.
0: Digital filter deactivated
1: Digital filter activated
7–42
Hysteresis MD 274 motor 2
Lower input limit
0
Frequency torque setpoint filter motor 2
Lower input limit
50
Grading torque setpoint filter motor 2
Lower input limit
0.10
Lower input limit
-255
Selection torque setpoint filter motor 2
Lower input limit
0000
©
Siemens AG 1992 All Rights Reserved
Upper input limit
Rated speed
Upper input limit
450
Upper input limit
10.00
Upper input limit
255
Upper input limit
0001
SINUMERIK 840C (IA)
12.93
Active
at once
Units
rev/min
Active
at once
Units
Hz
Active
at once
Units
–
Active
at once
Units
–
Active
at once
Units
Hex
6FC5197- AA50