Function Diagrams And Parameters - Siemens SINAMICS S120 Function Manual

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Sensor monitoring for wire breakage/short-circuit

● A sensor monitoring function for a short-circuit in the sensor cable is possible for a PTC

● If an induction motor is connected, you can suppress fault F07016 by setting p0607 = 0.

● If the motor temperature sensor set in p0600 is not connected, alarm A07820

Function diagrams and parameters

Function diagrams (see SINAMICS S120/S150 List Manual)

Drive functions

Function Manual, (FH1), 01/2013, 6SL3097-4AB00-0BP3

and a KTY84 . Wire break monitoring is possible for a KTY84 sensor:

If the temperature value lies outside the specified range of -140 °C ... +250 °C, then it is

probable that the sensor cable either has a broken wire or short-circuit. The alarm

A07015 "Drive: Motor temperature sensor alarm" is initiated. After the wait time in p0607

has expired, fault F07016 "Drive: Motor temperature sensor fault" is output.

The drive then continues to operate with the data calculated in the thermal 3-mass model.

"Temperature sensor not connected" is triggered.

Signals and monitoring functions - Thermal monitoring motor

Signals and monitoring functions - Thermal motor models

Terminal Module 31 (TM31) - Temperature evaluation (KTY/PTC)

Terminal Module 120 (TM120) - Temperature evaluation, channels 0 and 1

(KTY/PTC/bimetallic switch)

Terminal Module 120 (TM120) - Temperature evaluation, channels 2 and 3

(KTY/PTC/bimetallic switch)

Terminal Module 150 (TM150) - Temperature evaluation structure

(channel 0 ... 11)

Terminal Module 150 (TM150) - Temperature evaluation 1x2-, 3-, 4-wire

(channel 0 ... 5)

Terminal Module 150 (TM150) - Temperature evaluation 2x2-wire

(channel 0 ... 11)

Monitoring and protective functions

8.5 Thermal motor protection