Siemens SIRIUS M200D - Temperature Sensor

Functions
3.6 Motor protection
M200D PROFIBUS/PROFINET
46 Manual, 08/2014, A5E01577426A/RS-AA/004
3.6.2
Temperature sensor
Description
Temperature sensors are used to directly monitor the motor winding temperature. This
indicates whether the motor is overloaded or functioning normally. If temperature sensors
are installed in the motor stator winding (order option for the motor), the M200D motor starter
can use these to monitor the motor.
M200D motor starters can evaluate
one
temperature sensor circuit.
The temperature sensor evaluation electronics are galvanically isolated from the electronics
and the auxiliary voltage.
This is beneficial if insulation damage is caused to the motor or the motor supply line, as this
does not affect any further system components (see Technical Specifications).
Temperature sensor
You can activate or deactivate this parameter depending on whether or not a temperature
sensor is installed in the motor.
Two types of temperature sensor are supported:
● Thermoclick.
This is a switch that opens at a certain winding temperature.
● PTC type A
This is a PTC thermistor with a characteristic to IEC 60947-8.
Note
If you parameterize the temperature sensor as "deactivated", the following parameters are
ignored:
• Response to overload temperature sensor
• Temperature sensor monitoring (with PTC)