Siemens SINAMICS G120D CU240D-2 DP Manual page 262

2 Parameters
2.2 List of parameters
Note: When the rotating measurement is activated, it is not possible to save the parameters (p0971).
Parameter changes are automatically made for the rotating measurement (e.g. p1120); this is the reason that up to
the end of the measurement, and if no faults are present, no manual changes should be made.
The ramp-up and ramp-down times (p1120, p1121) are limited, for the rotating measurement, to 900 s.
For speed controller optimization with encoder (p1960 = 2, 4), the speed controller for encoderless operation is also
pre-assigned (p1470, p1472).
Depending on whether the speed controller optimization is carried out with or without encoder, different Kp/Tn
adaptations of the speed controller are set (p1464, p1465). If the drive should be controlled with as well as without
speed encoder, then we recommend the use of two drive data sets (p0180). These can then be executed with
different speed controller adaptations.
p1961 Saturation characteristic speed to determine / Sat_char n determ
Access level: 3
Can be changed: U, T
Unit group: -
Min
26 [%]
Description: Sets the speed to determine the saturation characteristic.
The percentage value is referred to p0310 (rated motor frequency).
Dependency: Refer to: p0310, p1959
Refer to: F07983
Note: The saturation characteristics should be determined at an operating point with the lowest possible load.
p1965 Speed_ctrl_opt speed / n_opt speed
Access level: 3
Can be changed: U, T
Unit group: -
Min
10 [%]
Description: Sets the speed for the identification of the moment of inertia and the vibration test.
Induction motor:
The percentage value is referred to p0310 (rated motor frequency).
Synchronous motor:
The percentage value is referred to the minimum from p0310 (rated motor frequency) and p1082 (maximum speed).
Dependency: Refer to: p0310, p1959
Refer to: F07984, F07985
Note: In order to calculate the inertia, sudden speed changes are carried out - the specified value corresponds to the lower
speed setpoint. This value is increased by 20 % for the upper speed value.
The q leakage inductance (refer to p1959.5) is determined at zero speed and at 50 % of p1965 - however, with a
maximum output frequency of 15 Hz and at a minimum of 10% of the rated motor speed.
p1967 Speed_ctrl_opt dynamic factor / n_opt dyn_factor
Access level: 3
Can be changed: U, T
Unit group: -
Min
1 [%]
Description: Sets the dynamic response factor for speed controller optimization.
After optimization, the dynamic response achieved is displayed in r1968.
Dependency: Refer to: p1959, r1968
Refer to: F07985
262
Calculated: -
Scaling: -
Unit selection: -
Max
75 [%]
Calculated: -
Scaling: -
Unit selection: -
Max
75 [%]
Calculated: p0340 = 1
Scaling: -
Unit selection: -
Max
400 [%]
Data type: FloatingPoint32
Dyn. index: -
Func. diagram: -
Factory setting
40 [%]
Data type: FloatingPoint32
Dyn. index: -
Func. diagram: -
Factory setting
40 [%]
Data type: FloatingPoint32
Dyn. index: -
Func. diagram: -
Factory setting
100 [%]
SINAMICS G120D
List Manual (LH14), 01/2016, A5E33842313