Siemens SINAMICS G120XA - VDC Controller Integral Time (U;F); Vdc_Ctrl Tn; VDC Controller Rate Time (U;F); Vdc_Ctrl T_Rate; Vdc_Min Controller Response (Kinetic Buffering) (U;F); Vdc_Min Controller Time Threshold (U;F); Vdc_Min T_Thresh

p1291[0...n] Vdc controller integral time (U/f) / Vdc_ctrl Tn
Access level: 3 Calculated: - Data type: FloatingPoint32
Can be changed: T, U Scaling: - Dynamic index: DDS, p0180
Unit group: - Unit selection: - Function diagram: 6320, 6854
Min:
0 [ms]
Max:
10000 [ms]
Factory setting:
40 [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
Access level: 3 Calculated: CALC_MOD_CON Data type: FloatingPoint32
Can be changed: T, U Scaling: - Dynamic index: DDS, p0180
Unit group: - Unit selection: - Function diagram: 6320, 6854
Min:
0 [ms]
Max:
1000 [ms]
Factory setting:
10 [ms]
Description: Sets the rate time constant for the Vdc controller (DC link voltage controller).
p1294 Vdc_max controller automatic detection ON signal level (U/f) / Vdc_max SenseOnLev
Access level: 3 Calculated: - Data type: Integer16
Can be changed: T, U Scaling: - Dynamic index: -
Unit group: - Unit selection: - Function diagram: 6320, 6854
Min:
0
Max:
1
Factory setting:
0
Description: Activates/deactivates the automatic sensing of the switch-in level for the Vdc_max controller. When the sensing
function is deactivated, the activation threshold r1282 for the Vdc_max controller is determined from the
parameterized connection voltage p0210.
Value: 0: Automatic detection inhibited
1: Automatic detection enabled
p1295[0...n] Vdc_min controller time threshold (U/f) / Vdc_min t_thresh
Access level: 3 Calculated: - Data type: FloatingPoint32
Can be changed: T, U Scaling: - Dynamic index: DDS, p0180
Unit group: - Unit selection: - Function diagram: -
Min:
0.000 [s]
Max:
10000.000 [s]
Factory setting:
0.000 [s]
Description: Sets the time threshold for the Vdc_min controller (kinetic buffering).
If this value is exceeded a fault is output; the required response can be parameterized.
Prerequisite: p1296 = 1
NOTICE
If a time threshold has been parameterized, the Vdc_max controller should also be activated (p1280 = 3) so that the
drive does not shut down with overvoltage when Vdc_min control is exited (due to the time violation) and in the event
of fault response OFF3. It is also possible to increase the OFF3 ramp-down time p1135.
p1296[0...n] Vdc_min controller response (kinetic buffering) (U/f) / Vdc_min response
Access level: 3 Calculated: - Data type: Integer16
Can be changed: T, U Scaling: - Dynamic index: DDS, p0180
Unit group: - Unit selection: - Function diagram: -
Min:
0
Max:
1
Factory setting:
0
Description: Sets the response for the Vdc_min controller (kinetic buffering).
Parameters
7.3 Parameters
SINAMICS G120XA converter
508 Operating Instructions, 03/2019, FW V1.0, A5E44751205B AB