Siemens CU240B-2 Parameter Manual page 184

Parameters
List of Parameters
p1287[0...n] Vdc_min controller dynamic factor (kinetic buffering) (U/f) / Vdc_min dyn_factor
PM240 Access level: 3
Can be changed: U, T
Units group: -
Min
1 [%]
Description: Sets the dynamic factor for the Vdc_min controller (kinetic buffering).
100% means that p1290, p1291, and p1292 (gain, integral time, and rate time) are used corresponding to their
basic settings and based on a theoretical controller optimization.
If subsequent optimization is required, this can be carried out using the dynamic factor. In this case, p1290, p1291,
and p1292 are weighted with the dynamic factor p1287.
p1288[0...n] Vdc_max controller feedback coupling factor ramp-fct. gen. (U/f) /
Vdc_max factor RFG
Access level: 4
Can be changed: U, T
Units group: -
Min
0.000
Description: Sets the feedback factor for the ramp-function generator. Its ramp times are decelerated relative to the output signal
of the Vdc_max controller.
Note: For values p1288 = 0.0 to 0.5, the controller dynamics are automatically adapted internally.
p1290[0...n] Vdc controller proportional gain (U/f) / Vdc_ctrl Kp
PM230 Access level: 3
PM240
Can be changed: U, T
Units group: -
Min
0.00
Description: Sets the proportional gain for the Vdc controller (DC link voltage controller).
Note: The gain factor is proportional to the capacitance of the DC link. The parameter is pre-set to a value that is optimally
adapted to the capacitance of the power unit.
p1291[0...n] Vdc controller integral time (U/f) / Vdc_ctrl Tn
PM230 Access level: 3
PM240
Can be changed: U, T
Units group: -
Min
0 [ms]
Description: Sets the integral time for the Vdc controller (DC link voltage controller).
p1292[0...n] Vdc controller rate time (U/f) / Vdc_ctrl t_rate
PM230 Access level: 3
PM240
Can be changed: U, T
Units group: -
Min
0 [ms]
Description: Sets the rate time constant for the Vdc controller (DC link voltage controller).
1-184
Calculated: p0340 = 1,3,4
Scaling: -
Unit selection: -
Max
10000 [%]
Calculated: -
Scaling: -
Unit selection: -
Max
100.000
Calculated: p0340 = 1,3,4
Scaling: -
Unit selection: -
Max
100.00
Calculated: -
Scaling: -
Unit selection: -
Max
10000 [ms]
Calculated: p0340 = 1,3,4
Scaling: -
Unit selection: -
Max
1000 [ms]
SINAMICS G120 / Control Units CU240B/E-2 Parameter Manual (LH11), 01/2011
Data type: FloatingPoint32
Data set: DDS, p0180
Factory setting
100 [%]
Data type: FloatingPoint32
Data set: DDS, p0180
Factory setting
0.500
Data type: FloatingPoint32
Data set: DDS, p0180
Factory setting
1.00
Data type: FloatingPoint32
Data set: DDS, p0180
Factory setting
40 [ms]
Data type: FloatingPoint32
Data set: DDS, p0180
Factory setting
10 [ms]
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