2 Parameters
2.2 List of parameters
SINAMICS G120 Control Units CU240B-2/CU240E-2
268 List Manual (LH11), 01/2016, A5E33839529
p1300 = 20, 22 (encoderless operation):
Only rotating measurement or speed controller optimization can be selected in the encoderless mode.
Value: 0: Inhibited
1: Rotating measurement in encoderless operation
3: Speed controller optimization in encoderless operation
Dependency: Before the rotating measurement is carried out, the motor data identification routine (p1900, p1910, r3925) should
have already been done.
When selecting the rotating measurement, the drive data set changeover is suppressed.
Refer to: p1300, p1900, p1959, p1967, r1968
Danger: For drives with a mechanical system that limits the distance moved, it must be ensured that this is not reached during
the rotating measurement. If this is not the case, then it is not permissible that the measurement is carried out.
Notice: If there is a motor holding brake, it must be open (p1215 = 2).
To permanently accept the determined settings they must be saved in a non-volatile fashion (p0971).
During the rotating measurement it is not possible to save the parameter (p0971).
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.
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.
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.
p1961 Saturation characteristic speed to determine / Sat_char n determ
Access level: 3 Calculated: - Data type: FloatingPoint32
Can be changed: U, T Scaling: - Dyn. index: -
Unit group: - Unit selection: - Func. diagram: -
Min Max Factory setting
26 [%] 75 [%] 40 [%]
p1965 Speed_ctrl_opt speed / n_opt speed
Access level: 3 Calculated: - Data type: FloatingPoint32
Can be changed: U, T Scaling: - Dyn. index: -
Unit group: - Unit selection: - Func. diagram: -
Min Max Factory setting
10 [%] 75 [%] 40 [%]
To Next Page
Loading...
Need help?
General