Siemens SINAMICS G120 Manual page 78

Parameters
List of Parameters
p0612[0...n] Thermal motor model configuration / Therm Mot_mod conf
Access level: 3
Can be changed: U, T
Units group: -
Min
-
Description: Sets the configuration for the thermal motor model.
Bit field: Bit Signal name
00 Activate I2t motor model
01 Activate motor temperature model
Dependency: Refer to: r0034, p0611, p0615
Note: Re bit 00:
This bit is only used for permanent-magnet synchronous motors (p0300 = 2xx). It is only possible to switch in ther-
mal I2t monitoring with a time constant greater than zero (p0611 > 0).
Re bit 01:
This bit is used to activate/de-activate the thermal motor model for induction motors.
p0615[0...n] I2t motor model fault threshold / I2t mot_mod thresh
Access level: 3
Can be changed: C(3), U, T
Units group: 21_1
Min
0.0 [°C]
Description: Sets the fault threshold for monitoring using the thermal I2t motor model.
Dependency: The parameter is only used for permanent-magnet synchronous motors (p0300 = 2xx).
Refer to: r0034, p0611, p0612
Refer to: F07011, A07012
Caution: When selecting a catalog motor (p0301), this parameter is automatically pre-assigned and is write protected. Infor-
mation in p0300 should be carefully observed when removing write protection.
p0620[0...n] Thermal adaptation, stator and rotor resistance / Mot therm_adapt R
Access level: 4
Can be changed: C(3), U, T
Units group: -
Min
0
Description: Sets the thermal adaptation of the stator/primary section resistance and rotor/secondary section resistance accord-
ing to r0395 and r0396.
Value: 0:
1:
2:
Note: For p0620 = 1, the following applies:
The stator resistance is adapted using the temperature in r0035 and the rotor resistance together with the model
temperature in r0633.
For p0620 = 2, the following applies:
The stator resistance is adapted using the temperature in r0035. If applicable, the rotor temperature for adapting
the rotor resistance is calculated from the stator temperature (r0035) as follows:
theta_R = (r0628 + r0625) / (r0627 + r0625) * r0035
1-78
No thermal adaptation of stator and rotor resistances
Resistances adapted to the temperatures of the thermal model
Resistances adapted to the measured stator winding temperature
Calculated: p0340 = 1
Scaling: -
Unit selection: -
Max
-
1 signal
Yes
Yes
Calculated: -
Scaling: -
Unit selection: p0505
Max
220.0 [°C]
Calculated: p0340 = 1
Scaling: -
Unit selection: -
Max
2
SINAMICS G120 Control Units CU230P-2 Parameter Manual (LH9), 01/2011
Data type: Unsigned16
Data set: MDS
Factory setting
0010 bin
0 signal
No
No
Data type: FloatingPoint32
Data set: MDS
Factory setting
180.0 [°C]
Data type: Integer16
Data set: MDS
Factory setting
1
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