Measuring The Motor Temperature - Siemens SINAMICS DCM Operating Instructions Manual

10.18

Measuring the motor temperature

SINAMICS DCM provides the possibility of evaluating a temperature sensor integrated in the
motor. (see the SINAMICS DCM List Manual, function diagram 8030).
The following measuring sensors can be evaluated.
● KTY84
● PTC thermistor acc. to DIN 44081 / 44082
● PT100
SINAMICS DCM Control Module
Operating Instructions, 06.2010, C98130-A7067-A1-02-7619
approx. 350 Ω up to approx. 2600 Ω at -40 °C to +300 °C
positive temperature coefficient, almost a linear characteristic
Figure 10-49 Characteristic KTY84
600 Ω, 1200 Ω, 1330 Ω or 2660 Ω response temperature
positive temperature coefficient, the resistance changes suddenly at the response
temperature
Note:
It is not possible to determine the actual temperature, it is only possible to identify as to
whether the response temperature has been exceeded - or not.
approx. 80 Ω to approx. 280 Ω at -40 °C to +500 °C
positive temperature coefficient, almost a linear characteristic
Descriptions of functions
10.18 Measuring the motor temperature
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