Siemens SINAMICS G120 List Manual page 285

p1752[0...n] Motor model changeover speed operation with encoder / MotMod n_chgov enc
Access level: 3
Can be changed: U, T
Unit group: 3_1
Min
0.00 [rpm]
Description: Sets the speed to change over the motor model for operation with encoder.
Dependency: Not visible with application class: "Standard Drive Control" (SDC, p0096 = 1)
Refer to: p1756
p1753[0...n] Motor model changeover speed hysteresis operation with encoder /
MotMod n_chgovHysE
Access level: 3
Can be changed: U, T
Unit group: -
Min
0.0 [%]
Description: Sets the hysteresis for the changeover speed of the motor model for operation with speed encoder.
Dependency: Not visible with application class: "Standard Drive Control" (SDC, p0096 = 1)
Refer to: p1752
Note: The value refers to p1752.
p1755[0...n] Motor model changeover speed encoderless operation / MotMod n_chgSnsorl
Access level: 3
Can be changed: U, T
Unit group: 3_1
Min
0.00 [rpm]
Description: Sets the speed to change over the motor model to encoderless operation.
Dependency: Not visible with application class: "Standard Drive Control" (SDC, p0096 = 1)
Refer to: p1749, p1756
Notice: The changeover speed represents the steady-state minimum speed up to which the motor model can be used in
sensorless steady-state operation.
If the stability is not adequate close to the changeover speed, it may make sense to increase the parameter value.
On the other hand, very low changeover speeds can negatively impact the stability.
Note: The changeover speed applies for the changeover between open-loop and closed-loop control mode.
p1756 Motor model changeover speed hysteresis encoderless operation /
MotMod n_chgov hys
Access level: 3
Can be changed: U, T
Unit group: -
Min
0.0 [%]
Description: Sets the hysteresis for the changeover speed of the motor model for encoderless operation.
Dependency: Not visible with application class: "Standard Drive Control" (SDC, p0096 = 1)
Refer to: p1755
Note: The parameter value refers to p1755.
Extremely small hystereses can have a negative impact on the stability in the changeover speed range, and very
high hystereses in the standstill range.
SINAMICS G120 CU250S-2 Control Units
List Manual, 09/2017, A5E33842890
Calculated: p0340 = 1,3
Scaling: -
Unit selection: p0505
Max
210000.00 [rpm]
Calculated: p0340 = 1,3
Scaling: -
Unit selection: -
Max
90.0 [%]
Calculated: p0340 = 1,3
Scaling: -
Unit selection: p0505
Max
210000.00 [rpm]
Calculated: p0340 = 1,3
Scaling: -
Unit selection: -
Max
95.0 [%]
2 Parameters
2.2 List of parameters
Data type: FloatingPoint32
Dyn. index: DDS, p0180
Func. diagram: -
Factory setting
210000.00 [rpm]
Data type: FloatingPoint32
Dyn. index: DDS, p0180
Func. diagram: -
Factory setting
0.0 [%]
Data type: FloatingPoint32
Dyn. index: DDS, p0180
Func. diagram: -
Factory setting
210000.00 [rpm]
Data type: FloatingPoint32
Dyn. index: -
Func. diagram: 6730, 6731
Factory setting
50.0 [%]
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