2 Parameters
2.2 List of parameters
SINAMICS G130/G150
420 List Manual (LH2), 04/2014, A5E03263479A
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.
Description: Sets the hysteresis for the changeover speed of the motor model for encoderless operation. In the case of separately
excited synchronous motors, the lower hysteresis value is calculated with p1756 * p1755; in the case of all other
types of motor, p1755 * (1 - p1756) is used.
Dependency: In U/f characteristic mode the parameter is of no significance.
Refer to: p1755
Note: The parameter value refers to p1755.
In the case of separately excited synchronous motors, the lower hysteresis value is calculated with p1755 * p1756; in
the case of all other types of motor, p1755 * (1 - p1756) is used.
Description: Sets the gain of the transient response controller when the motor model changes over from open-loop controlled
operation to closed-loop controlled operation.
Note: Only for ASM and PSM in encoderless operation:
The settling range starts at 0.5 * p1755 * p1756.
For ASM it ends at p1755 * p1756 or at p1755, if p1759 is at the maximum value.
For PSM it always ends at p1755 * p1756.
p1755[0...n] Motor model changeover speed encoderless operation / MotMod n_chgSnsorl
VECTOR_G Can be changed: U, T Calculated: CALC_MOD_REG Access level: 3
Data type: FloatingPoint32 Dyn. index: DDS, p0180 Func. diagram: -
P-Group: Closed-loop control Units group: 3_1 Unit selection: p0505
Not for motor type: REL Scaling: - Expert list: 1
Min Max Factory setting
0.00 [rpm] 210000.00 [rpm] 210000.00 [rpm]
p1756 Motor model changeover speed hysteresis encoderless operation /
MotMod n_chgov hys
VECTOR_G Can be changed: U, T Calculated: CALC_MOD_REG Access level: 3
Data type: FloatingPoint32 Dyn. index: - Func. diagram: 6730, 6731,
6732, 6733
P-Group: Closed-loop control Units group: - Unit selection: -
Not for motor type: REL Scaling: - Expert list: 1
Min Max Factory setting
0.0 [%] 95.0 [%] 50.0 [%]
p1757[0...n] Motor model w/o enc. op./cl.-loop controlled stab. controller Kp / MotMod w/o enc Kp
VECTOR_G (n/M) Can be changed: U, T Calculated: CALC_MOD_CON Access level: 4
Data type: FloatingPoint32 Dyn. index: DDS, p0180 Func. diagram: -
P-Group: Closed-loop control Units group: - Unit selection: -
Not for motor type: REL, FEM Scaling: - Expert list: 1
Min Max Factory setting
0.01 10.00 0.70
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