Motor Protection By Calculating The Temperature - Siemens Sinamics G110M Operating Instructions Manual

Parameter
p0640
Additional information on the motor temperature monitoring can be found in function diagram
8016 of the List Manual.
6.22

Motor protection by calculating the temperature

The inverter calculates the motor temperature based on a thermal motor model.
The thermal motor model responds far faster to temperature increases than a temperature
sensor.
If you are using the thermal motor model together with a temperature sensor, e.g. a Pt1000,
then the inverter corrects the model based on the measured temperature.
Thermal motor model 2 for induction motors
The thermal motor model 2 for induction motors is a thermal 3-mass model, consisting of
stator core, stator winding and rotor. Thermal motor model 2 calculates the temperatures -
both in the rotor as well as in the stator winding.
Figure 6-60
Table 6- 44
Parameter Description
r0068
p0610
Distributed converter for SIMOGEAR geared motors
Operating Instructions, 09/2017, FW V4.7.9, A5E31298649B AH
Description
2, Alarm A07910 and fault F07011
12:
The inverter does not reduce the current limit.
Current limit [A]
Thermal motor model 2 for induction motors
Thermal motor model 2 for induction motors
CO: Absolute actual current value
Motor overtemperature response (factory setting: 12)
0: Alarm A07012
The inverter does not reduce the current limit.
1: Alarm A07012 and fault F07011
The inverter reduces the current limit.
2: Alarm A07012 and fault F07011
The inverter does not reduce the current limit.
6.22 Motor protection by calculating the temperature
Advanced commissioning
267