Siemens SINAMICS DCM Manual page 546

10.20 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
approx. 350 Ω to approx. 2600 Ω at -40° C to +300° C
positive temperature coefficient, almost a linear characteristic
Figure 10-73 Characteristic KTY84
● PTC thermistor acc. to DIN 44081 / 44082
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.
● PT100
approx. 80 Ω to approx. 280 Ω at -40° C to +500° C
positive temperature coefficient, almost a linear characteristic
● PT1000
approx. 840 Ω to approx. 2980 Ω at -40° C to +550° C
positive temperature coefficient, almost a linear characteristic
SINAMICS DCM DC Converter
Operating Instructions, 02.2015, A5E34763375/RS-AA/001
ac.maher.co.ir
Descriptions of functions
10.20 Measuring the motor temperature
547