Vdc_Min Controller Dynamic Factor (Kinetic Buffering) (U/F); Vdc_Max Controller Feedback Coupling Factor Ramp-Fct. Gen. (U/F); Vdc_Max Controller Speed Threshold (U/F) / Vdc_Max N_Thresh; Vdc Controller Proportional Gain (U/F) / Vdc_Ctrl Kp - Siemens SINAMICS G150 Manual

p1287[0...n] Vdc_min controller dynamic factor (kinetic buffering) (U/f) / Vdc_min dyn_factor
VECTOR_G Can be changed: U, T
Data type: FloatingPoint32
P-Group: Functions
Not for motor type: -
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.
If several modules are connected to the DC link, then the dynamic factor must be increased corresponding to the
ratio of the additional capacitances to the capacitance of the module involved.
Note: The pre-setting of the dynamic factor is based on the power units connected to DRIVE-CLiQ. It is assumed that the
power units connected via DRIVE-CLiQ are also electrically connected to the DC link. If this is not the case, then the
dynamic factor must be optimized manually.
p1288[0...n]

Vdc_max controller feedback coupling factor ramp-fct. gen. (U/f) /

Vdc_max factor RFG
VECTOR_G Can be changed: U, T
Data type: FloatingPoint32
P-Group: Functions
Not for motor type: -
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.
p1289[0...n]

Vdc_max controller speed threshold (U/f) / Vdc_max n_thresh

VECTOR_G Can be changed: U, T
Data type: FloatingPoint32
P-Group: Functions
Not for motor type: -
Min
0.00 [rpm]
Description: Sets the lower speed threshold for the Vdc_max controller.
When this speed threshold is undershot, the Vdc_max control is switched out and the speed is controlled using the
ramp-function generator.
p1290[0...n]

Vdc controller proportional gain (U/f) / Vdc_ctrl Kp

VECTOR_G Can be changed: U, T
Data type: FloatingPoint32
P-Group: Functions
Not for motor type: -
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 individual Motor Module. The capacitances of the other power units which are
connected to the DC link can be taken into account using the dynamic factor (p1287 or p1283).
SINAMICS G130/G150
List Manual (LH2), 04/2014, A5E03263479A
Calculated: CALC_MOD_CON
Dyn. index: DDS, p0180
Units group: -
Scaling: -
Max
10000 [%]
Calculated: -
Dyn. index: DDS, p0180
Units group: -
Scaling: -
Max
100.000
Calculated: CALC_MOD_ALL
Dyn. index: DDS, p0180
Units group: 3_1
Scaling: -
Max
210000.00 [rpm]
Calculated: CALC_MOD_CON
Dyn. index: DDS, p0180
Units group: -
Scaling: -
Max
100.00
2 Parameters
2.2 List of parameters
Access level: 3
Func. diagram: 6320
Unit selection: -
Expert list: 1
Factory setting
100 [%]
Access level: 4
Func. diagram: -
Unit selection: -
Expert list: 1
Factory setting
0.500
Access level: 3
Func. diagram: -
Unit selection: p0505
Expert list: 1
Factory setting
10.00 [rpm]
Access level: 3
Func. diagram: 6320
Unit selection: -
Expert list: 1
Factory setting
1.00
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