List of Parameters
Parameters
1-197
© Siemens AG 2009 All Rights Reserved
SINAMICS G120 Control Units CU230P-2 Parameter Manual (LH9), 11/2009
Description: Sets a dynamic voltage reserve.
Note: In the field weakening range, it must be expected that the control dynamic performance is somewhat restricted due
to the limited possibilities of controlling/adjusting the voltage. This can be improved by increasing the voltage mar-
gin (reserve). Increasing the reserve reduces the steady-state maximum output voltage (r0071).
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.
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: 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.
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: Sets the smoothing time for the flux setpoint.
Description: Displays the smoothed flux setpoint. The value is referred to the rated motor flux.
p1574[0...n] Voltage reserve dynamic / V_reserve dyn
PM240
PM250, PM260
Access level: 3 Calculated: p0340 = 1,3,5 Data type: FloatingPoint32
Can be changed: U, T Scaling: - Data set: DDS, p0180
Min Max Factory setting
0.0 [Vrms] 150.0 [Vrms] 10.0 [Vrms]
p1580[0...n] Efficiency optimization / Efficiency opt.
PM230 Access level: 3 Calculated: - Data type: FloatingPoint32
Can be changed: U, T Scaling: - Data set: DDS, p0180
Min Max Factory setting
0 [%] 100 [%] 80 [%]
p1580[0...n] Efficiency optimization / Efficiency opt.
PM240
PM250, PM260
Access level: 3 Calculated: - Data type: FloatingPoint32
Can be changed: U, T Scaling: - Data set: DDS, p0180
Min Max Factory setting
0 [%] 100 [%] 0 [%]
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: - Data set: DDS, p0180
Min Max Factory setting
4 [ms] 5000 [ms] 15 [ms]
r1583 Flux setpoint smoothed / Flux setp smooth
Access level: 4 Calculated: - Data type: FloatingPoint32
Unit: [%] Scaling: PERCENT Data set: -
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