Siemens SINAMICS G120XA, Operating Instructions Manual

Page: 551 / 918

p1961 Saturation characteristic speed to determine / Sat_char n determ
Access level: 3 Calculated: - Data type: FloatingPoint32
Can be changed: T, U Scaling: - Dynamic index: -
Unit group: - Unit selection: - Function diagram: -
Min:
26 [%] Max:
75 [%] Factory setting:
40 [%]
Description: Sets the speed to determine the saturation characteristic.
The percentage value is referred to p0310 (rated motor frequency).
Dependency: See also: p0310, p1959
See also: F07983
Note
The saturation characteristics should be determined at an operating point with the lowest possible load.
p1961 Saturation characteristic speed to determine / Sat_char n determ
CUG120XA_USS
(PM330)
Access level: 3 Calculated: - Data type: FloatingPoint32
Can be changed: T, U Scaling: - Dynamic index: -
Unit group: - Unit selection: - Function diagram: -
Min:
26 [%] Max:
75 [%] Factory setting:
30 [%]
Description: Sets the speed to determine the saturation characteristic.
The percentage value is referred to p0310 (rated motor frequency).
Dependency: See also: p0310, p1959
See also: 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 Calculated: - Data type: FloatingPoint32
Can be changed: T, U Scaling: - Dynamic index: -
Unit group: - Unit selection: - Function diagram: -
Min:
10 [%] Max:
75 [%] Factory setting:
40 [%]
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: See also: p0310, p1959
See also: 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.
Parameters
7.3 Parameters
SINAMICS G120XA converter
Operating Instructions, 03/2019, FW V1.0, A5E44751205B AB
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