Siemens SINAMICS G120 List Manual page 233

The moment of inertia estimator is active above this threshold.
The value is referred to the rated torque (r0333).
Dependency: Not visible with application class: "Standard Drive Control" (SDC, p0096 = 1)
Refer to: p1400, p1561, p1562
Note: The moment of inertia estimation is inaccurate at very low accelerating torques. As a consequence, below this
threshold, the estimator does not provide any new values.
p1561[0...n] Moment of inertia estimator change time moment of inertia / J_est t J
Access level: 3
Can be changed: U, T
Unit group: -
Min
10.00 [ms]
Description: Sets the change time for the moment of inertia for the moment of inertia estimator.
Lower values mean that faster changes are possible.
For a higher value, this estimated value is smoothed more significantly.
Dependency: Not visible with application class: "Standard Drive Control" (SDC, p0096 = 1)
Refer to: p1400, p1560, p1562
p1562[0...n] Moment of inertia estimator change time load / J_est t load
Access level: 3
Can be changed: U, T
Unit group: -
Min
5.00 [ms]
Description: Sets the change time for the load torque for the moment of inertia estimator.
Lower values mean that faster changes are possible.
For a higher value, this estimated value is smoothed more significantly.
Dependency: Not visible with application class: "Standard Drive Control" (SDC, p0096 = 1)
Refer to: p1400, p1560, p1561
p1563[0...n] CO: Mom. of inertia estimator load torque direction of rotation pos. / J_est M pos
Access level: 3
Can be changed: U, T
Unit group: -
Min
-340.28235E36 [Nm]
Description: Display and connector output for the monitored load torque in the positive direction of rotation.
The moment of inertia estimator estimates the load torque drawn while the speed is constant.
Dependency: Refer to: p1400, p1560, p1561
p1564[0...n] CO: Mom. of inertia estimator load torque direction of rotation neg. / J_est M neg
Access level: 3
Can be changed: U, T
Unit group: -
Min
-340.28235E36 [Nm]
Description: Display and connector output for the monitored load torque in the negative direction of rotation.
The moment of inertia estimator estimates the load torque drawn while the speed is constant.
Dependency: Refer to: p1400, p1560, p1561
SINAMICS G120 Control Units CU240B-2/CU240E-2
List Manual (LH11), 01/2016, A5E33839529
Calculated: p0340 = 1,3,4
Scaling: -
Unit selection: -
Max
5000.00 [ms]
Calculated: p0340 = 1,3,4
Scaling: -
Unit selection: -
Max
5000.00 [ms]
Calculated: -
Scaling: p2003
Unit selection: -
Max
340.28235E36 [Nm]
Calculated: -
Scaling: p2003
Unit selection: -
Max
340.28235E36 [Nm]
2 Parameters
2.2 List of parameters
Data type: FloatingPoint32
Dyn. index: DDS, p0180
Func. diagram: -
Factory setting
500.00 [ms]
Data type: FloatingPoint32
Dyn. index: DDS, p0180
Func. diagram: -
Factory setting
10.00 [ms]
Data type: FloatingPoint32
Dyn. index: DDS, p0180
Func. diagram: -
Factory setting
0.00 [Nm]
Data type: FloatingPoint32
Dyn. index: DDS, p0180
Func. diagram: -
Factory setting
0.00 [Nm]
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