Siemens G130 List Manual page 450

2 Parameters
2.2 List of parameters
p1753[0...n] Motor model changeover speed hysteresis operation with encoder /
MotMod n_chgovHysE
VECTOR_G (n/M) Can be changed: U, T
Data type: FloatingPoint32
P-Group: Closed-loop control
Not for motor type: REL
Min
0.0 [%]
Description: Sets the hysteresis for the changeover speed of the motor model for operation with speed encoder.
Dependency: Refer to: p1752
Note: The value refers to p1752.
In the case of separately excited synchronous motors, the lower hysteresis value is calculated with p1752 * p1753; in
the case of all other types of motor, p1752 * (1 - p1753) is used.
p1754[0...n] Flux angle difference smoothing time / Angle diff T_smth
VECTOR_G (n/M) Can be changed: U, T
Data type: FloatingPoint32
P-Group: Closed-loop control
Not for motor type: ASM, REL
Min
0.1 [ms]
Description: Sets the smoothing time constant to filter the main flux angle difference from the voltage and current models.
The filtered value is included in the calculation of the total flux angle.
PMSM:
Sets the smoothing time constant to display the angular difference between the motor model an encoder.
Note: In the case of a separately excited synchronous motor (SESM) and sensorless vector control, the parameter must be
set to the minimum value to improve motor model changeover.
PMSM: permanent-magnet synchronous motor
SESM: separately excited synchronous motor
p1755[0...n] Motor model changeover speed encoderless operation / MotMod n_chgSnsorl
VECTOR_G Can be changed: U, T
Data type: FloatingPoint32
P-Group: Closed-loop control
Not for motor type: REL
Min
0.00 [rpm]
Description: Sets the speed to change over the motor model to encoderless operation.
Dependency: In U/f characteristic mode the parameter is of no significance.
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.
Note: The changeover speed applies for the changeover between open-loop and closed-loop control mode.
450
Calculated: CALC_MOD_REG
Dyn. index: DDS, p0180
Unit group: -
Scaling: -
Max
90.0 [%]
Calculated: -
Dyn. index: DDS, p0180
Unit group: -
Scaling: -
Max
10000.0 [ms]
Calculated: CALC_MOD_REG
Dyn. index: DDS, p0180
Unit group: 3_1
Scaling: -
Max
210000.00 [rpm]
List Manual (LH2), 07/2016, A5E03263479A
Access level: 3
Func. diagram: -
Unit selection: -
Expert list: 1
Factory setting
0.0 [%]
Access level: 3
Func. diagram: 6733
Unit selection: -
Expert list: 1
Factory setting
5.0 [ms]
Access level: 3
Func. diagram: -
Unit selection: p0505
Expert list: 1
Factory setting
210000.00 [rpm]
SINAMICS G130/G150