Siemens G130 List Manual page 358

2 Parameters
2.2 List of parameters
p1249[0...n] Vdc_max controller speed threshold / Vdc_max n_thresh
VECTOR_G (n/M) Can be changed: U, T
Data type: FloatingPoint32
P-Group: Functions
Not for motor type: REL
Min
0.00 [rpm]
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.
p1250[0...n] Vdc controller proportional gain / Vdc_ctrl Kp
VECTOR_G (n/M) Can be changed: U, T
Data type: FloatingPoint32
P-Group: Functions
Not for motor type: REL
Min
0.00
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).
Note: The gain factor is proportional to the capacitance of the DC link. The parameter is pre-set to a value that is optimally
adapted to the capacitance of the individual Motor Module. The capacitances of the other power units, which are
connected to the DC link, can be taken into account using the dynamic factor (p1247 or p1243).
p1251[0...n] Vdc controller integral time / Vdc_ctrl Tn
VECTOR_G (n/M) Can be changed: U, T
Data type: FloatingPoint32
P-Group: Functions
Not for motor type: REL
Min
0 [ms]
Description: Sets the integral time for the DC link voltage controller (Vdc_min controller, Vdc_max controller).
Dependency: The effective integral time is obtained taking into account p1243 (Vdc_max controller dynamic factor).
Note: An integral time is normally not required for single axis drives. For multi-axis drives on the other hand, it may be
possible to compensate for interference from other axes using the integral time (integral component) .
p1251 = 0: The integral component is deactivated.
p1252[0...n] Vdc controller rate time / Vdc_ctrl t_rate
VECTOR_G (n/M) Can be changed: U, T
Data type: FloatingPoint32
P-Group: Functions
Not for motor type: REL
Min
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).
358
Calculated: CALC_MOD_ALL
Dyn. index: DDS, p0180
Unit group: 3_1
Scaling: -
Max
210000.00 [rpm]
Calculated: -
Dyn. index: DDS, p0180
Unit group: -
Scaling: -
Max
100.00
Calculated: -
Dyn. index: DDS, p0180
Unit group: -
Scaling: -
Max
10000 [ms]
Calculated: -
Dyn. index: DDS, p0180
Unit group: -
Scaling: -
Max
1000 [ms]
List Manual (LH2), 07/2016, A5E03263479A
Access level: 3
Func. diagram: -
Unit selection: p0505
Expert list: 1
Factory setting
10.00 [rpm]
Access level: 3
Func. diagram: -
Unit selection: -
Expert list: 1
Factory setting
1.00
Access level: 3
Func. diagram: 6220
Unit selection: -
Expert list: 1
Factory setting
0 [ms]
Access level: 3
Func. diagram: 6220
Unit selection: -
Expert list: 1
Factory setting
0 [ms]
SINAMICS G130/G150