Siemens SINAMICS G110M - Motor Protection with Temperature Sensor

8.23 Motor protection with temperature sensor
Introduction
You can use one of the following temperature sensors to protect the motor against overheating:
• Temperature switch (e.g. bimetallic switch)
• PTC sensor
• KTY 84 sensor
• Pt1000 sensor
Connect the motor temperature sensor to the Power Module through the motor power cable.
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Figure 8-71 Connecting the motor temperature sensor to the Power Module
Function description
KTY84 sensor
NOTICE
Overheating of the motor due to KTY sensor connected with the incorrect polarity
If a KTY sensor is connected with incorrect polarity, the motor can become damaged due to
overheating, as the converter cannot detect a motor overtemperature condition.
• Connect the KTY sensor with the correct polarity.
Advanced commissioning
8.23 Motor protection with temperature sensor
Distributed converter for SIMOGEAR geared motors
Operating Instructions, 10/2020, FW V4.7 SP13, A5E31298649B AL 323