Siemens SINAMICS G120X - VDC Controller Rate Time; Vdc_Ctrl T_Rate; Vdc_Max Controller Automatic on Level Detection; Vdc_Max Senseonlev; Vdc_Min Controller Response (Kinetic Buffering); Vdc_Min Response; Vdc_Min Controller Time Threshold; Vdc_Min T_Thresh

p1252[0...n] Vdc controller rate time / Vdc_ctrl t_rate
Access level: 3 Calculated: - Data type: FloatingPoint32
Can be changed: T, U Scaling: - Dynamic index: DDS, p0180
Unit group: - Unit selection: - Function diagram: 6220
Min:
0 [ms]
Max:
1000 [ms]
Factory setting:
0 [ms]
Description: Sets the rate time constant for the DC link voltage controller (Vdc_min controller, Vdc_max controller).
Dependency: The effective rate time is obtained taking into account p1243 (Vdc_max controller dynamic factor).
p1254 Vdc_max controller automatic ON level detection / Vdc_max SenseOnLev
Access level: 3 Calculated: - Data type: Integer16
Can be changed: T, U Scaling: - Dynamic index: -
Unit group: - Unit selection: - Function diagram: -
Min:
0
Max:
1
Factory setting:
1
Description: Activates/deactivates the automatic sensing of the switch-in level for the Vdc_max controller.
Value: 0: Automatic detection inhibited
1: Automatic detection enabled
p1255[0...n] Vdc_min controller time threshold / Vdc_min t_thresh
G120X_DP (Vdc_min),
G120X_PN (Vdc_min),
G120X_USS
(Vdc_min)
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:
1800.000 [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: p1256 = 1
Dependency: See also: F07406
NOTICE
If a time threshold has been parameterized, the Vdc_max controller should also be activated (p1240 = 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.
p1256[0...n] Vdc_min controller response (kinetic buffering) / Vdc_min response
G120X_DP (Vdc_min),
G120X_PN (Vdc_min),
G120X_USS
(Vdc_min)
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).
Value: 0: Buffer Vdc until undervoltage, n<p1257 -> F07405
1: Buff. Vdc until undervolt., n<p1257 -> F07405, t>p1255 -> F07406
Dependency: See also: F07405, F07406
Parameters
7.2 Parameter list
SINAMICS G120X converter
658 Operating Instructions, 06/2019, FW V1.01, A5E44751209B AC