Siemens 6MD85, Manual

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Function Description
Logic
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Figure 7-195 Logic Diagram for a Temperature Supervision Location
The Temperature supervision location function block (Location FB) receives a measured temperature value
in °C or °F as an input variable delivered from the temperature sensor function blocks of the Analog units
function group. The Sensor number parameter is used to select the temperature sensor.
2 threshold value decisions can be performed for each measuring point. If the measured temperature value is
greater than or equal to the set threshold values, the stages generate a pickup indication independent of one
another and, after a set tripping time delay, an operate indication.
The indications from the supervision locations remain available for further processing.
i
i
NOTE
The pickup of the stages does not result in fault logging. The operate indications of the stages do not go
into the trip logic of the device.
Application and Setting Notes
If you use an external RTD unit, connect the RTD unit via an interface (Ethernet or serial) to the SIPROTEC 5
device. Observe the setting notes for configuration of the interfaces in chapter Analog Transformer Function
Group Type under
5.7.7.3 Communication with an RTD Unit .
7.28.3
7.28.4
Protection and Automation Functions
7.28 Temperature Supervision
SIPROTEC 5, High-Voltage Bay Controller, Manual 903
C53000-G5040-C015-9, Edition 11.2017