Siemens SINAMICS G120X - Motor Model Changeover Delay Time Closed;Open-Loop Control; Motor Model Changeover Delay Time Open;Closed-Loop Control; Motor Model Without Encoder Speed Adaptation Kp; Motor Model Without Encoder Speed Adaptation Tn

Description: Sets the hysteresis for the changeover speed of the motor model for encoderless operation.
Dependency: See also: 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.
p1758[0...n] Motor model changeover delay time closed/open-loop control / MotMod t cl_op
Access level: 4 Calculated: - Data type: FloatingPoint32
Can be changed: T, U Scaling: - Dynamic index: DDS, p0180
Unit group: - Unit selection: - Function diagram: -
Min:
100 [ms]
Max:
10000 [ms]
Factory setting:
500 [ms]
Description: Sets the minimum time for falling below the changeover speed when changing from closed-loop controlled operation
to open-loop controlled operation.
Dependency: The wait time has no significance if the setpoint speed before the ramp-function generator lies in the open-loop speed
controlled operating range. In this case, the change is made without any delay.
See also: p1755, p1756
Note
If p1758 is changed, commissioning must be selected in order to validate the value for the blocking monitoring.
p1759[0...n] Motor model changeover delay time open/closed-loop control / MotMod t op_cl
Access level: 4 Calculated:
CALC_MOD_LIM_REF
Data type: FloatingPoint32
Can be changed: T, U Scaling: - Dynamic index: DDS, p0180
Unit group: - Unit selection: - Function diagram: -
Min:
0 [ms]
Max:
2000 [ms]
Factory setting:
0 [ms]
Description: Sets the minimum time for a transition from open-loop controlled to closed-loop controlled operation after the lower
changeover speed p1755 * (1 - p1756 / 100 %) has been exceeded.
Dependency: See also: p1755, p1756
Note
With p1759 = 2000 ms, the delay time becomes ineffective and the model changeover is determined by the output
frequency only (changeover for p1755).
p1764[0...n] Motor model without encoder speed adaptation Kp / MotMod woE n_adaKp
Access level: 4 Calculated: CALC_MOD_CON Data type: FloatingPoint32
Can be changed: T, U Scaling: - Dynamic index: DDS, p0180
Unit group: - Unit selection: - Function diagram: 6730
Min:
0.000
Max:
100000.000
Factory setting:
1000.000
Description: Sets the proportional gain of the controller for speed adaptation without encoder.
p1767[0...n] Motor model without encoder speed adaptation Tn / MotMod woE n_adaTn
Access level: 4 Calculated: CALC_MOD_CON Data type: FloatingPoint32
Can be changed: T, U Scaling: - Dynamic index: DDS, p0180
Unit group: - Unit selection: - Function diagram: 6730
Min:
1 [ms]
Max:
200 [ms]
Factory setting:
4 [ms]
Description: Sets the integral time of the controller for speed adaptation without encoder
Parameters
7.2 Parameter list
SINAMICS G120X converter
706 Operating Instructions, 06/2019, FW V1.01, A5E44751209B AC