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Siemens SINAMICS G120 List Manual page 291

Cu250s-2 control units
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For bit 12 (only for synchronous motors and bit 6 = 1):
The pole position identification is only carried out after power on and after the motor has coasted down. The switch-
off speed p1226 should be as low as possible. If the power unit is switched off when the motor is stationary, then the
next time that the power unit is switched on, the old angle is used as starting value. The precondition applies that
while the power unit is switched off the motor does not rotate.
The duration of the pole position identification is shortened using bit 13. As a consequence, the pole wheel angle
error can be slightly greater.
p1784[0...n]
Motor model feedback scaling / MotMod fdbk scal
Access level: 4
Can be changed: U, T
Unit group: -
Min
0.0 [%]
Description:
Sets the scaling for model fault feedback.
Dependency:
Not visible with application class: "Standard Drive Control" (SDC, p0096 = 1), "Dynamic Drive Control" (DDC, p0096
= 2)
Note:
Feeding back the measured model fault to the model states increases the control stability and makes the motor
model rugged against parameter errors.
When feedback is selected (p1784 > 0), Lh adaptation is not effective.
p1785[0...n]
Motor model Lh adaptation Kp / MotMod Lh Kp
Access level: 4
Can be changed: U, T
Unit group: -
Min
0.000
Description:
Sets the proportional gain for the Lh adaptation of the motor model for an induction motor (ASM).
Dependency:
Not visible with application class: "Standard Drive Control" (SDC, p0096 = 1), "Dynamic Drive Control" (DDC, p0096
= 2)
p1786[0...n]
Motor model Lh adaptation integral time / MotMod Lh Tn
Access level: 4
Can be changed: U, T
Unit group: -
Min
10 [ms]
Description:
Sets the integral time for the Lh adaptation of the motor model for an induction motor (ASM).
Dependency:
Not visible with application class: "Standard Drive Control" (SDC, p0096 = 1), "Dynamic Drive Control" (DDC, p0096
= 2)
r1787[0...n]
Motor model Lh adaptation corrective value / MotMod Lh corr
Access level: 4
Can be changed: -
Unit group: -
Min
- [mH]
Description:
Displays the corrective value for the Lh adaptation of the motor model for an induction motor (ASM).
Dependency:
Not visible with application class: "Standard Drive Control" (SDC, p0096 = 1), "Dynamic Drive Control" (DDC, p0096
= 2)
Refer to: p0826, p1780
Note:
The adaptation result is reset if the magnetizing inductance of the induction motor is changed (p0360, r0382). This
also happens when changing over the data set if a different motor is not being used (p0826).
The display of the inactive data sets is only updated when changing over the data set.
SINAMICS G120 CU250S-2 Control Units
List Manual, 09/2017, A5E33842890
Calculated: p0340 = 1,3,4
Scaling: -
Unit selection: -
Max
1000.0 [%]
Calculated: p0340 = 1,3,4
Scaling: -
Unit selection: -
Max
10.000
Calculated: p0340 = 1,3,4
Scaling: -
Unit selection: -
Max
10000 [ms]
Calculated: -
Scaling: -
Unit selection: -
Max
- [mH]
2 Parameters
2.2 List of parameters
Data type: FloatingPoint32
Dyn. index: DDS, p0180
Func. diagram: -
Factory setting
0.0 [%]
Data type: FloatingPoint32
Dyn. index: DDS, p0180
Func. diagram: -
Factory setting
0.100
Data type: FloatingPoint32
Dyn. index: DDS, p0180
Func. diagram: -
Factory setting
100 [ms]
Data type: FloatingPoint32
Dyn. index: DDS, p0180
Func. diagram: -
Factory setting
- [mH]
291

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