Siemens SINAMICS G130 - Temperature Sensing Via TM150

Functions, monitoring, and protective functions
9.4 Monitoring and protective functions
Inverter chassis units
490 Operating Instructions, 07/2016, A5E00331449A
9.4.6
Temperature sensing via TM150
9.4.6.1
Description
The Terminal Module 150 (TM150) has 6x 4-pole terminals for temperature sensors.
Temperature sensors can be connected in a 1x2, 1x3 or 1x4-wire system. In a 2x2-wire
system, up to 12 input channels can be evaluated. 12 input channels can be evaluated in the
factory setting. The temperature channels can be combined into three groups and evaluated
together.
PTC, KTY84, bimetallic NC contact, PT100 and PT1000 temperature sensors can be
connected and evaluated. The fault and/or alarm thresholds of the temperature values can
be set from -99° C up to 251° C.
The temperature sensors are connected at terminal strips X531 to X536 according to the
following table.
The TM150 temperature inputs are not electrically isolated.
Selecting the sensor types
● p4100[0...11] sets the sensor type for the respective temperature channel.
● r4105[0...11] indicates the actual value of the temperature channel.
For switching temperature sensors, such as e.g. PTC and bimetallic NC contact,
symbolically two limit values are displayed:
– r4105[0...11] = -50 °C: The actual temperature value is below the rated response
temperature.
– r4105[0...11] = +250 °C: The actual temperature value is above the rated response
temperature.
Note
PTC and bimetallic NC contact
What is shown in r4105[0...11] does not correspond to the actual temperature value.
Table 9- 13 Selecting the sensor types
Value of p4100[0...11]
Temperature sensor
Temperature display range r4105[0...11]
0
Evaluation disabled
-
1
PTC thermistor
-50° C or +250° C
2
KTY84
-99° C to +250° C
4
Bimetallic NC contact
-50° C or +250° C
5
PT100
-99° C to +250° C
6
PT1000
-99° C to +250° C