User Manual

List of parameters
Parameters
1-225
© Siemens AG 2009 - 2013 All Rights Reserved
SINAMICS G120 CU240B/E-2 Control Units List Manual (LH11), 01/2013
Note: This parameter is ineffective for sensorless vector control. In this case, p1727 is always used. If p1726 is set to 0,
then the quadrature de-coupling is de-activated. The integral component of the Isd current controller remains effec-
tive in the complete speed control range.
For the closed-loop control of synchronous motors, this parameter is used to scale the current controller de-cou-
pling.
Description: Sets the scaling of quadrature arm decoupling when the voltage limit is reached.
Description: Displays the actual output of the quadrature channel de-coupling for the d axis.
Description: Displays the actual output of the quadrature channel de-coupling for the q axis.
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 volt-
age 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.
Description: Sets the time constant to calculate the d current DC component difference (combination current) to add to the d cur-
rent controller actual value. The additional input is de-activated with p1731 = 0.
p1727[0...n] Quadrature arm decoupling at voltage limit scaling / TrnsvDecplVmaxScal
Access level: 4 Calculated: - Data type: FloatingPoint32
Can be changed: U, T Scaling: - Dyn. index: DDS, p0180
Units group: - Unit selection: - Func. diagram: 6714
Min Max Factory setting
0.0 [%] 200.0 [%] 50.0 [%]
r1728 De-coupling voltage in-line axis / U_dir-axis_decoupl
Access level: 4 Calculated: - Data type: FloatingPoint32
Can be changed: - Scaling: p2001 Dyn. index: -
Units group: 5_1 Unit selection: p0505 Func. diagram: -
Min Max Factory setting
- [Vrms] - [Vrms] - [Vrms]
r1729 De-coupling voltage quadrature axis / U_quad_decoupl
Access level: 4 Calculated: - Data type: FloatingPoint32
Can be changed: - Scaling: p2001 Dyn. index: -
Units group: 5_1 Unit selection: p0505 Func. diagram: -
Min Max Factory setting
- [Vrms] - [Vrms] - [Vrms]
p1730[0...n] Isd controller integral component shutdown threshold / Isd_ctr I_compDeac
Access level: 4 Calculated: p0340 = 1,3,4 Data type: FloatingPoint32
Can be changed: U, T Scaling: - Dyn. index: DDS, p0180
Units group: - Unit selection: - Func. diagram: -
Min Max Factory setting
30 [%] 150 [%] 30 [%]
p1731[0...n] Isd controller combination current time component / Isd ctrl iCombi T1
Access level: 4 Calculated: p0340 = 1,3,4 Data type: FloatingPoint32
Can be changed: U, T Scaling: - Dyn. index: DDS, p0180
Units group: - Unit selection: - Func. diagram: -
Min Max Factory setting
0.00 [ms] 10000.00 [ms] 0.00 [ms]