User Manual

2 Parameters
2.2 List of parameters
SINAMICS G120 CU230P-2 Control Units
212 List Manual (LH9), 04/2014, A5E33838102B AA
Description: Sets the hysteresis for the changeover speed of the motor model for encoderless operation.
Dependency: 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.
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.
Refer to: p1755, p1756
Note: If p1758 is changed, commissioning must be selected in order to validate the value for the blocking monitoring.
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: Refer to: 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).
Description: Sets the proportional gain of the controller for speed adaptation without encoder.
Description: Sets the integral time of the controller for speed adaptation without encoder
p1756 Motor model changeover speed hysteresis encoderless operation /
MotMod n_chgov hys
Access level: 3 Calculated: p0340 = 1,3 Data type: FloatingPoint32
Can be changed: U, T Scaling: - Dyn. index: -
Units group: - Unit selection: - Func. diagram: 6730, 6731
Min Max Factory setting
0.0 [%] 95.0 [%] 50.0 [%]
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: U, T Scaling: - Dyn. index: DDS, p0180
Units group: - Unit selection: - Func. diagram: -
Min Max Factory setting
100 [ms] 10000 [ms] 500 [ms]
p1759[0...n] Motor model changeover delay time open/closed-loop control / MotMod t op_cl
Access level: 4 Calculated: - Data type: FloatingPoint32
Can be changed: U, T Scaling: - Dyn. index: DDS, p0180
Units group: - Unit selection: - Func. diagram: -
Min Max Factory setting
0 [ms] 2000 [ms] 0 [ms]
p1764[0...n] Motor model without encoder speed adaptation Kp / MotMod woE n_adaKp
Access level: 4 Calculated: p0340 = 1,3,4 Data type: FloatingPoint32
Can be changed: U, T Scaling: - Dyn. index: DDS, p0180
Units group: - Unit selection: - Func. diagram: 6730
Min Max Factory setting
0.000 100000.000 1000.000
p1767[0...n] Motor model without encoder speed adaptation Tn / MotMod woE n_adaTn
Access level: 4 Calculated: p0340 = 1,3,4 Data type: FloatingPoint32
Can be changed: U, T Scaling: - Dyn. index: DDS, p0180
Units group: - Unit selection: - Func. diagram: 6730
Min Max Factory setting
1 [ms] 200 [ms] 4 [ms]