Siemens SINAMICS G120X - CO: Direct-Axis Voltage Setpoint; Direct U Set; Current Controller D Axis Integral Time; I_Ctrl D-Axis Tn; Isd Controller Combination Current Time Component; Isd Controller Integral Component Shutdown Threshold

p1722[0...n] Current controller d axis integral time / I_ctrl d-axis Tn
Access level: 4 Calculated: CALC_MOD_CON Data type: FloatingPoint32
Can be changed: T, U Scaling: - Dynamic index: DDS, p0180
Unit group: - Unit selection: - Function diagram: -
Min:
0.00 [ms]
Max:
1000.00 [ms]
Factory setting:
2.00 [ms]
Description: Sets the integral time of the d-current controller.
p1730[0...n] Isd controller integral component shutdown threshold / Isd ctrl Tn shutd
Access level: 4 Calculated: CALC_MOD_CON Data type: FloatingPoint32
Can be changed: T, U Scaling: - Dynamic index: DDS, p0180
Unit group: - Unit selection: - Function diagram: -
Min:
30 [%]
Max:
150 [%]
Factory setting:
30 [%]
Description: Sets the speed threshold for deactivating the integral component of the Isd controller.
The d current controller is only effective as P controller for speeds greater than the threshold value. Instead of the
integral component, the quadrature arm decoupling is effective.
WARNING
For settings above 80%, the d current controller is active up to the field weakening limit. When operated at the voltage
limit, this can result in an unstable behavior. In order to avoid this, the dynamic voltage reserve p1574 should be
increased.
Note
The parameter value is referred to the synchronous rated motor speed.
p1731[0...n] Isd controller combination current time component / Isd ctr I_combi T1
Access level: 4 Calculated: CALC_MOD_CON Data type: FloatingPoint32
Can be changed: T, U Scaling: - Dynamic index: DDS, p0180
Unit group: - Unit selection: - Function diagram: -
Min:
0.00 [ms]
Max:
10000.00 [ms]
Factory setting:
0.00 [ms]
Description: Sets the time constant to calculate the d current DC component difference (combination current) to add to the d current
controller actual value.
Note
It is not added for p1731 = 0.
r1732[0...1] CO: Direct-axis voltage setpoint / Direct U set
Access level: 4 Calculated: - Data type: FloatingPoint32
Can be changed: - Scaling: p2001 Dynamic index: -
Unit group: 5_1 Unit selection: p0505 Function diagram: 5700, 5714,
6714, 5718
Min:
- [Vrms]
Max:
- [Vrms]
Factory setting:
- [Vrms]
Description: Display and connector output for the direct axis voltage setpoint Ud.
Index: [0] = Unsmoothed
[1] = Smoothed with p0045
Parameters
7.2 Parameter list
SINAMICS G120X converter
700 Operating Instructions, 06/2019, FW V1.01, A5E44751209B AC