Motor Saturation Characteristic I_Mag 4 / Mot Sat. I_Mag 4 - Siemens SINAMICS G150 Manual

2 Parameters
2.2 List of parameters
Permanent-magnet synchronous motors (PESM):
The saturation characteristic describes the mapping of the stator quadrature axis current onto the stator quadrature
axis flux.
The parameter sets the third stator quadrature axis current as a [%] referred to the rated motor current (p0305).
Dependency: The following applies for the magnetizing currents:
p0366 < p0367 < p0368 < p0369
The following applies for the stator quadrature axis current values (PESM):
20 % < p0366 < p0367 < p0368 < p0369
Refer to: p0364
Notice: For permanent-magnet synchronous motors (PESM), the following applies:
If the parameters are not set as specified, i.e. not in ascending order and to more than 20 %, the unsaturated
quadrature inductance (p0356) is always used for quadrature axis flux calculation purposes.
Note: When quick commissioning is exited with p3900 > 0, then the parameter is reset if a catalog motor has not been
selected (p0300).
p0369[0...n]

Motor saturation characteristic I_mag 4 / Mot sat. I_mag 4

VECTOR_G Can be changed: C2(3), U, T
Data type: FloatingPoint32
P-Group: Motor
Not for motor type: -
Min
5.0 [%]
Description: The saturation characteristic (flux as mapping of current) is defined using 4 points.
This parameter specifies the x coordinate for the 4th value pair of the characteristic.
Induction motors (ASM) and separately-excited synchronous motors (SESM):
The saturation characteristic describes the mapping of the magnetizing current onto the motor flux.
The parameter sets the fourth magnetizing current as a [%] referred to the rated magnetizing current r0331 (ASM),
which in turn is referred to the no-load excitation current (SESM).
Permanent-magnet synchronous motors (PESM):
The saturation characteristic describes the mapping of the stator quadrature axis current onto the stator quadrature
axis flux.
The parameter sets the fourth stator quadrature axis current as a [%] referred to the rated motor current (p0305).
Dependency: The following applies for the magnetizing currents:
p0366 < p0367 < p0368 < p0369
The following applies for the stator quadrature axis current values (PESM):
20 % < p0366 < p0367 < p0368 < p0369
Refer to: p0365
Notice: For permanent-magnet synchronous motors (PESM), the following applies:
If the parameters are not set as specified, i.e. not in ascending order and to more than 20 %, the unsaturated
quadrature inductance (p0356) is always used for quadrature axis flux calculation purposes.
Note: When quick commissioning is exited with p3900 > 0, then the parameter is reset if a catalog motor has not been
selected (p0300).
r0370[0...n] Motor stator resistance cold / Mot R_stator cold
VECTOR_G Can be changed: -
Data type: FloatingPoint32
P-Group: Motor
Not for motor type: -
Min
- [ohm]
Description: Displays the motor stator resistance at an ambient temperature (p0625).
The value does not include the cable resistance.
Dependency: Refer to: p0625
142
Calculated: -
Dyn. index: MDS, p0130
Units group: -
Scaling: -
Max
800.0 [%]
Calculated: -
Dyn. index: MDS, p0130
Units group: 16_1
Scaling: -
Max
- [ohm]
List Manual (LH2), 04/2014, A5E03263479A
Access level: 3
Func. diagram: 6723, 6726
Unit selection: -
Expert list: 1
Factory setting
210.0 [%]
Access level: 4
Func. diagram: -
Unit selection: p0349
Expert list: 1
Factory setting
- [ohm]
SINAMICS G130/G150