Siemens SINAMICS G120 - p1243[0...n] Vdc_max controller dynamic factor; Vdc_max dyn_factor; p1245[0...n] Vdc_min controller switch-in level (kinetic buffering); Vdc_min on_level; r1246 Vdc_min controller switch-in level (kinetic buffering); Vdc_min on_level

2 Parameters
2.2 List of parameters
SINAMICS G120 Control Units CU240B-2/CU240E-2
190 List Manual (LH11), 01/2016, A5E33839529
Description: Sets the dynamic factor for the DC link voltage controller (Vdc_max controller).
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 p1243.
Dependency: Not visible with application class: "Standard Drive Control" (SDC, p0096 = 1)
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: Not visible with application class: "Standard Drive Control" (SDC, p0096 = 1)
Refer to: p0210
Warning: An excessively high value possibly negatively influences normal drive operation, and can mean that after the line
supply returns, the Vdc minimum control can no longer be exited.
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: Not visible with application class: "Standard Drive Control" (SDC, p0096 = 1)
Refer to: p0210
Warning: An excessively high value possibly negatively influences normal drive operation, and can mean that after the line
supply returns, the Vdc minimum control can no longer be exited.
Description: Displays the switch-in level for the Vdc_min controller (kinetic buffering).
Dependency: Not visible with application class: "Standard Drive Control" (SDC, p0096 = 1)
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.
p1243[0...n] Vdc_max controller dynamic factor / Vdc_max dyn_factor
PM230
PM230_STO
PM240
Access level: 3 Calculated: p0340 = 1,3,4 Data type: FloatingPoint32
Can be changed: U, T Scaling: - Dyn. index: DDS, p0180
Unit group: - Unit selection: - Func. diagram: 6220
Min Max Factory setting
1 [%] 10000 [%] 100 [%]
p1245[0...n] Vdc_min controller switch-in level (kinetic buffering) / Vdc_min on_level
PM230
PM230_STO
Access level: 3 Calculated: - Data type: FloatingPoint32
Can be changed: U, T Scaling: - Dyn. index: DDS, p0180
Unit group: - Unit selection: - Func. diagram: -
Min Max Factory setting
65 [%] 150 [%] 73 [%]
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: - Dyn. index: DDS, p0180
Unit group: - Unit selection: - Func. diagram: -
Min Max Factory setting
65 [%] 150 [%] 76 [%]
r1246 Vdc_min controller switch-in level (kinetic buffering) / Vdc_min on_level
PM230
PM230_STO
PM240
Access level: 3 Calculated: - Data type: FloatingPoint32
Can be changed: - Scaling: p2001 Dyn. index: -
Unit group: - Unit selection: - Func. diagram: 6220
Min Max Factory setting
- [V] - [V] - [V]