Motor Temperature Monitoring Using A Temperature Sensor - Siemens Sinamics G120P Operating Instructions Manual

Inverter response
The inverter temperature is determined primarily by the feed-through and switching losses of
the IGBTs.
The inverter reacts to an excessive temperature by reducing the output current and the pulse
frequency (for vector control) or pulse frequency and the speed (for V/f control).
The temperature alarm threshold can be set using p0292[0] (heat sink, factory setting 5° C)
and p0292[1] (power semiconductor, factory setting 15° C).
7.6.2

Motor temperature monitoring using a temperature sensor

Connecting the temperature sensor
You can use one of the following sensors to protect the motor against overtemperature:
● Temperature switch (e.g. bimetallic switch)
● PTC sensor
● KTY84 sensor
Connect the temperature sensor of the motor to terminals
14 and 15 of the Control Unit.
Set response to excess motor temperature
If you use a temperature switch or PTC sensor, set the response to excess motor
temperature via P0610 as follows:
● p0610 = 0
– Warning A07910,
– No shutdown
● p0610 = 1, p0610 = 2, p0610 = 12
– Warning A07910
– Shutdown with fault F07011
If you use a KTY84 sensor, set the temperature for the warning or fault threshold via p0604
or p0605.
● Monitoring via p0604: Response as per the setting in p0610
● Monitoring via p0605: Shutdown with fault as soon as the set threshold is exceeded.
For details, please refer to the List Manual.
Inverter cabinet units
Operating Instructions, 12/2014, A5E32923362A
Functions
7.6 Protection functions
365