Siemens sinamics G120 Operating Instructions Manual page 258

Advanced commissioning
6.6 Protection functions
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.
Image 6-47
Table 6- 37
Parameter Description
r0068
p0610
p0344
p0604
p0605
p0612
p0627
p0625
r0632
Further information is provided in the function charts 8016 and 8017 of the List Manual.
258
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: No response, alarm only, no reduction of I
1: Messages, reduction of I
2: Messages, no reduction of I
12: Messages, no reduction of I
Motor weight (for thermal motor type) (factory setting: 0.0 kg)
Mot_temp_mod 2/KTY alarm threshold (factory setting: 130.0° C)
Motor temperature > p0604 ⇒ fault F07011.
Mot_temp_mod 1/2 threshold (factory setting: 145.0° C)
Motor temperature > p0605 ⇒ alarm A07012.
Mot_temp_mod activation
.01 1 signal: Activate motor temperature model 2 for induction
motors
.09 1 signal: Activate motor temperature model 2 expansions
The inverter sets bit 09 = 1 after commissioning. If you load
the parameter settings for firmware version ≤ V4.6 into the
inverter, bit 09 = 0 remains.
Motor overtemperature, stator winding (factory setting: 80 K)
Motor ambient temperature during commissioning (factory setting: 20° C)
Specification of the motor ambient temperature in °C at the instant of the motor data
identification.
Mot_temp_mod stator winding temperature [°C]
max
max
max
, temperature is saved
max
Operating Instructions, 01/2016, FW V4.7 SP6, A5E31759476B AE
After selecting an
induction motor
(p0300) or a listed
induction motor
(p0301) during the
commissioning,
the inverter sets
the parameters to
values appropriate
for the motor.
The parameters
are write-
protected for listed
motors
(p0301 ≥ 0).
Converter with CU250S-2 Control Unit