Siemens SINAMICS G120 Manual page 176

Parameters
List of Parameters
p1285[0...n] Vdc_min controller switch-in level (kinetic buffering) (U/f) / Vdc_min on_level
PM240 Access level: 3
Can be changed: U, T
Units group: -
Min
65 [%]
Description: Sets the switch-in level for the Vdc-min controller (kinetic buffering).
The value is obtained as follows:
p1286[V] = p1285[%] * sqrt(2) * p0210
Warning: An excessively high value may adversely affect normal drive operation.
r1286 Vdc_min controller switch-in level (kinetic buffering) (U/f) / Vdc_min on_level
PM240 Access level: 3
Can be changed: -
Units group: -
Min
- [V]
Description: Displays the switch-in level for the Vdc_min controller (kinetic buffering).
Note: The Vdc_min controller is not switched back off until the DC-link voltage rises above the threshold 1.05 * p1286 and
the controller output is zero.
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.
1-176
Calculated: -
Scaling: -
Unit selection: -
Max
150 [%]
Calculated: -
Scaling: p2001
Unit selection: -
Max
- [V]
Calculated: p0340 = 1,3,4
Scaling: -
Unit selection: -
Max
10000 [%]
Calculated: -
Scaling: -
Unit selection: -
Max
100.000
SINAMICS G120 Control Units CU230P-2 Parameter Manual (LH9), 01/2011
Data type: FloatingPoint32
Data set: DDS, p0180
Factory setting
76 [%]
Data type: FloatingPoint32
Data set: -
Factory setting
- [V]
Data type: FloatingPoint32
Data set: DDS, p0180
Factory setting
100 [%]
Data type: FloatingPoint32
Data set: DDS, p0180
Factory setting
0.500
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