Setting Notes - Siemens siprotec SJ62 User Manual

Figure 2-110 Logic diagram of the temperature processing for RTD-box 1

2.20.2 Setting Notes

General
Device Settings
SIPROTEC 4, 7SJ62/63/64 Handbuch
C53000-G1140-C147-A, Edition 07.2015
The temperature detection function is only effective and accessible if it has been as-
signed to an interface during the configuration of the protection functions (Section
2.1.1). At address 190 RTD-BOX INPUT the RTD-box(es) is allocated 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 276 TEMP. UNIT.
Operating the RDT boxes in half-duplex mode requires „/CTS controlled by /RTS" to
be enabled for CTS (Clear-To-Send) via plug-in jumper (see Section 3.1.2 in Chapter
„Mounting and Commissioning").
The settings are the same for each input and are here shown at the example of mea-
suring 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 Pt 100 Ω, Ni 120
Ω and Ni 100 Ω. If no temperature detector is available for RTD 1, set RTD 1 TYPE
= Not connected. This setting is only possible via DIGSI at "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. This
setting is only possible via DIGSI at Additional Settings.
Furthermore, you can set an alarm temperature and a tripping temperature. Depend-
ing on the temperature unit selected in the Power System Data (Section 2.1.1.2 in
address 276 TEMP. UNIT), the alarm temperature can be expressed in Celsius (°C)
(address 9013 RTD 1 STAGE 1) or Fahrenheit (°F) (address 9014 RTD 1 STAGE
2.20 Temperature Detection via RTD Boxes
302