[beispiel-rmax-150502-kn, 1, en_US]
[beispiel-rmin-150502-kn, 1, en_US]
[beispiel-rmittelwert-150502-kn, 1, en_US]
The closest standard value of 39 kΩ is selected; the power is:
[beispiel-leistungvonr-150502-kn, 1, en_US]
Hardware Modifications
General
Hardware modifications concerning, for instance, the control voltage for binary inputs or termination of serial
interfaces might be necessary. Follow the procedure described in this section, whenever hardware modifica-
tions are carried out.
Since the construction of modules varies from device to device, detailed information concerning hardware
modifications on devices 7SJ62 and 7SJ64 is specified separately.
Auxiliary Voltage
There are different power supply voltage ranges for the auxiliary voltage (refer to the Ordering Information in
Appendix
A Ordering Information and Accessories
). The power supplies of the variants for DC 60/110/125 V
and DC 110/125/220 V, AC 115/230 V are largely interchangeable by modifying the position of the jumpers.
The assignment of these jumpers to the nominal voltage ranges and their spatial arrangement on the PCB for
devices 7SJ62 and 7SJ64 are described separately in the following sections. Location and ratings of the minia-
ture fuse and the buffer battery are also shown. When the devices are delivered, these jumpers are set
correctly according to the nameplate stickers and need not be altered. Depending on the modification, addi-
tional plug-in jumpers are required. These must be ordered (see Appendix
A Ordering Information and Acces-
)
Live Status Contact
The live contacts of devices 7SJ62/64 are changeover contacts. With device 7SJ64 either the normally closed
(NC) contact or the normally open (NO) contact can be connected to two device connections via a plug-in
jumper (X40). The assignment of the plug-in jumper to the contact type and the spatial arrangement of the
jumper are described in the following section for the device 7SJ64.
Nominal Currents
The input transformers of the device are set to a nominal current of 1 A or 5 A by means of burden switching.
The jumpers were positioned at the factory according to the specifications on the nameplate sticker. The
assignment of the plug-in jumpers to the nominal current and the spatial arrangement of the jumpers are
described separately for devices 7SJ62 and 7SJ64 in the following sections.
Jumpers X61, X62 and X63 must be set for the same nominal current, i.e. there must be one jumper for each
input transformer, and the common jumper X 60.
3.1.2
3.1.2.1
Mounting and Commissioning
3.1 Mounting and Connections
370
SIPROTEC 4, 7SJ62/64, Manual
C53000-G1140-C207-8, Edition 08.2016
Summary of Contents for SIPROTEC 4
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