User Manual

2 Parameters
2.2 List of parameters
SINAMICS G120 CU230P-2 Control Units
228 List Manual, 04/2018, A5E33838102
Description: Sets the efficiency optimization.
When optimizing the efficiency, the flux setpoint of the closed-loop control is adapted as a function of the load.
For p1580 = 100 %, under no-load operating conditions, the flux setpoint is reduced to 50 % of the rated motor flux.
Dependency: Not visible with application class: "Standard Drive Control" (SDC, p0096 = 1)
Refer to: p0500
Note: It only makes sense to activate this function if the dynamic response requirements of the speed controller are low.
In order to avoid oscillations, if required, the speed controller parameters should be adapted (increase Tn, reduce
Kp).
Further, the smoothing time of the flux setpoint filter (p1582) should be increased.
Description: The following applies for a synchronous reluctance motor:
Sets the lower limit of the flux setpoint to evaluate the optimum flux characteristic.
The value is referred to the rated motor flux (p0357 * r0331).
Dependency: Not visible with application class: "Standard Drive Control" (SDC, p0096 = 1)
Description: Sets the smoothing time for the flux setpoint.
Dependency: Not visible with application class: "Standard Drive Control" (SDC, p0096 = 1)
Description: Sets the smoothing time for the flux setpoint in the field-weakening range
Recommendation: Smoothing should be especially used if there is no regenerative feedback into the line supply. This means that the
DC link voltage can quickly increase in regenerative operation
Dependency: Not visible with application class: "Standard Drive Control" (SDC, p0096 = 1), "Dynamic Drive Control" (DDC, p0096
= 2)
Note: Only the flux setpoint rise is smoothed
p1580[0...n] Efficiency optimization / Efficiency opt.
PM330 Access level: 3 Calculated: p0340 = 1,3,5 Data type: FloatingPoint32
Can be changed: U, T Scaling: - Dyn. index: DDS, p0180
Unit group: - Unit selection: - Func. diagram: 6722
Min Max Factory setting
0 [%] 100 [%] 100 [%]
p1581[0...n] Flux reduction factor / Flux red factor
Access level: 3 Calculated: - Data type: FloatingPoint32
Can be changed: U, T Scaling: - Dyn. index: DDS, p0180
Unit group: - Unit selection: - Func. diagram: -
Min Max Factory setting
0 [%] 100 [%] 100 [%]
p1582[0...n] Flux setpoint smoothing time / Flux setp T_smth
Access level: 3 Calculated: p0340 = 1,3 Data type: FloatingPoint32
Can be changed: U, T Scaling: - Dyn. index: DDS, p0180
Unit group: - Unit selection: - Func. diagram: 6722, 6724
Min Max Factory setting
4 [ms] 5000 [ms] 15 [ms]
p1584[0...n] Field weakening operation flux setpoint smoothing time / Field weak T_smth
Access level: 4 Calculated: p0340 = 1,3 Data type: FloatingPoint32
Can be changed: U, T Scaling: - Dyn. index: DDS, p0180
Unit group: - Unit selection: - Func. diagram: 6722
Min Max Factory setting
0 [ms] 20000 [ms] 0 [ms]