Functions
2.46 Temperature Detection by Thermoboxes
SIPROTEC, 7UM62, Manual
C53000-G1176-C149-7, Release date 03.2010
317
Figure 2-144 Logic Diagram for Temperature Processing
2.46.2 Setting Notes
General
The temperature detection is only active and accessible if it has been assigned to a port during configuration
of the protection functions (Section 2.4). At address 190 RTD-BOX INPUT the RTD box(es) is allocated to the
port at which it will be operated (e.g. port C). The number of sensor inputs and the communication mode were
set at address 191 RTD CONNECTION. The temperature unit (°C or °F) was set in the Power System Data 1
at address 276 TEMP. UNIT.
If the RTD boxes are operated in half-duplex mode, „/CTS controlled by /RTS“ must be selected for flow control
(CTS). This is done using a jumper (see Section 3.1.2 in the Chapter „Installation and Commissioning“)
Device Settings
The settings are the same for each input and are here shown at the example of measuring input 1.
Set the type of temperature detector for RTD 1 (temperature sensor for measuring point 1) at address 9011
RTD 1 TYPE. You can choose between , Ni 120 Ω and Ni 100 Ω. If no temperature detector is available
for RTD 1, set RTD 1 TYPE = Not connected. This parameter can only be changed in DIGSI at „Display
Additional Settings“.
Address 9012 RTD 1 LOCATION informs the device on the mounting location of RTD 1. You can choose
between Oil, Ambient, Winding, Bearing and Other. The selected location is not evaluated in the device;
it merely informs about the medium in which the temperature measurement is performed. This parameter can
only be changed in DIGSI at „Display Additional Settings“.
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