Siemens SINAMICS G120XA - Thermal Motor Model 1 for Synchronous Reluctance Motors

Thermal motor model 1 for synchronous reluctance motors
Thermal motor model 1 calculates the temperature of the stator winding from the motor current
and the thermal time constant of the motor model.
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Figure 6-71 Thermal motor model 1 for reluctance motors
Parameters
Table 6-68 Thermal motor model 1 for reluctance motors
Number Name Factory setting
r0034 CO: Thermal motor load - %
r0068[0 … 1] CO: Absolute actual current value - Arms
p0318[M] Motor stall current 0 Arms
p0610[M] Motor overtemperature response 12
p0611[M] I2t thermal motor model time constant 0 s
p0612[M] Mot_temp_mod activation 0000 0010 0000
0010 bin
p0613[M] Mot_temp_mod 1/3 ambient temperature 20 °C
p0625[M] Motor ambient temperature during commissioning 20 °C
p0627[M] Motor overtemperature, stator winding 80 K
r0632[M] Mot_temp_mod stator winding temperature - °C
p5390[M] Mot_temp_mod 1/3 alarm threshold 110 °C
p5391[M] Mot_temp_mod 1/3 fault threshold 120 °C
Further information is provided in the parameter list.
Advanced commissioning
6.7 Drive protection
SINAMICS G120XA converter
308 Operating Instructions, 03/2019, FW V1.0, A5E44751205B AB