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[7sj6x_temperaturverarbeitungthermobox-150502-kn, 1, en_US]
Figure 2-134
Setting Notes
2.22.2
General
Temperature detection is only effective and accessible if this protection function was allocated to an interface
during configuration (Section
cated to the interface at which it will be operated (e.g. port C). The number of sensor inputs and the commu-
nication mode were set at address 191 RTD CONNECTION. The temperature unit (°C or °F) was set in the
Power System Data 1 at address TEMP. UNIT.
If the RTD box is operated in half-duplex mode, the flow control (CTS) must be selected by means of a plug-in
jumper (see Section
enabled by /RTS".
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 sensor 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 measuring point is available for RTD 1,
set RTD 1 TYPE = Not connected. This setting is only possible 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 selection is not evaluated in the device but
only serves the purpose of providing information about the medium in which the temperature measurement
is carried out. This setting is only possible in DIGSI at "Display Additional Settings".
You can also set an alarm temperature and a tripping temperature. Depending on the temperature unit
selected in the Power System Data (Section
temperature can be expressed in degrees Celsius (°C) (address 9013 RTD 1 STAGE 1) or degrees Fahrenheit
(°F) (address 9014 RTD 1 STAGE 1). The tripping temperature is set to degrees Celsius (°C) in address 9015
RTD 1 STAGE 2 or to degrees Fahrenheit (°F) at address 9016 RTD 1 STAGE 2.
Accordingly, you can enter the settings for all connected temperature sensors of the RTD box.
SIPROTEC 4, 7SJ62/64, Manual
C53000-G1140-C207-8, Edition 08.2016
Logic diagram of temperature processing for the RTD box
2.1.1 Functional
3.1.2 Hardware Modifications
Scope). At address 190 RTD-BOX INPUT the RTD box is allo-
in the Chapter "Mounting and Commissioning") "/CTS
2.1.1.2 Setting Notes
in address 276 TEMP. UNIT), the alarm
2.22 Temperature Detection via RTD Boxes
Functions
307
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