Temperature Measurement Via Tm150 (Option G51); Description - Siemens SINAMICS G150 Operating Instructions Manual

Functions, Monitoring, and Protective Functions
9.4 Monitoring and protective functions
9.4.6

Temperature measurement via TM150 (option G51)

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 3 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.
NOTICE
For PTC and bimetallic NC contact the following applies:
What is shown in r4105[0...11] does not correspond to the actual temperature value.
Table 9- 13
Value of p4100[0...11]
506
– 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 temperature actual value is below the rated response
temperature.
- r4105[0...11] = +250 °C: The temperature actual value is above the rated response
temperature.
Selecting the sensor types
Temperature sensor
0 Evaluation disabled
1 PTC thermistor
2 KTY84
4 Bimetallic NC contact
5 PT100
6 PT1000
Temperature display range r4105[0...11]
-
-50 °C or +250 °C
-99 °C to +250 °C
-50 °C or +250 °C
-99 °C to +250 °C
-99 °C to +250 °C
Converter cabinet units
Operating Instructions, 03/2012, A5E03263466A