List of Parameters
Parameters
1-161
© Siemens AG 2009 All Rights Reserved
SINAMICS G120 Control Units CU230P-2 Parameter Manual (LH9), 11/2009
Description: Sets the switch-in level for the Vdc-min controller (kinetic buffering).
The value is obtained as follows:
r1246[V] = p1245[%] * sqrt(2) * p0210
Dependency: Refer to: p0210
Warning: An excessively high value may adversely affect normal drive operation.
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 * p1246 and
the controller output is zero.
Description: Sets the dynamic factor for the Vdc_min controller (kinetic buffering).
100% means that p1250, p1251, and p1252 (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 p1250, p1251,
p1252 are weighted with the dynamic factor p1247.
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.
Note: For fast braking where the ramp-function generator tracking was active, it is possible to prevent the drive rotating in
the opposite direction by increasing the speed threshold and setting a final rounding-off time in the ramp-function
generator (p1131). This is supported using a dynamic setting of the speed controller.
Description: Sets the proportional gain for the DC-link voltage controller (Vdc_min controller, Vdc_max controller).
Dependency: The effective proportional gain is obtained taking into account p1243 (Vdc_max controller dynamic factor) and the
DC link capacitance of the power unit.
p1245[0...n] Vdc_min controller switch-in level (kinetic buffering) / Vdc_min on_level
PM240 Access level: 3 Calculated: - Data type: FloatingPoint32
Can be changed: U, T Scaling: - Data set: DDS, p0180
Min Max Factory setting
65 [%] 150 [%] 76 [%]
r1246 Vdc_min controller switch-in level (kinetic buffering) / Vdc_min on_level
PM240 Access level: 3 Calculated: - Data type: FloatingPoint32
Unit: [V] Scaling: p2001 Data set: -
p1247[0...n] Vdc_min controller dynamic factor (kinetic buffering) / Vdc_min dyn_factor
PM240 Access level: 3 Calculated: p0340 = 1,3,4 Data type: FloatingPoint32
Can be changed: U, T Scaling: - Data set: DDS, p0180
Min Max Factory setting
1 [%] 10000 [%] 300 [%]
p1249[0...n] Vdc_max controller speed threshold / Vdc_max n_thresh
PM240 Access level: 3 Calculated: p0340 = 1 Data type: FloatingPoint32
Can be changed: U, T Scaling: - Data set: DDS, p0180
Min Max Factory setting
0.00 [rpm] 210000.00 [rpm] 10.00 [rpm]
p1250[0...n] Vdc controller proportional gain / Vdc_ctrl Kp
PM230
PM240
Access level: 3 Calculated: - Data type: FloatingPoint32
Can be changed: U, T Scaling: - Data set: DDS, p0180
Min Max Factory setting
0.00 100.00 1.00
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