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Table 3-1
Binary Input
>Set Group Bit 0
No
Yes
No
Yes
Figure 3-1
3.1.2
Hardware Modifications
3.1.2.1 General
Subsequent adaptation of hardware to the power system conditions may be necessary for example with regard
to the control voltage for binary inputs or termination of bus-capable interfaces. The hints given in this section
should be observed in all cases whenever hardware modifications are made.
Power Supply Voltage
There are different power supply voltage ranges for the auxiliary voltage (refer to the Ordering Information in
the Appendix). The power supplies with the ratings 60/110/125 VDC and 110/125/220/250 VDC / 115/230 VAC
are interconvertible. Jumper settings determine the rating. Jumper setting allocation to the rated voltage
ranges, and their location on the PCB are described in this Section under the margin title "Processor Board C-
CPU-2". When the device is delivered, these jumpers are set according to the name-plate sticker. Generally,
they need not be altered.
Life Contact
The life contact of the device is a changeover contact, from which either the opener or closer can be connected
to the device terminals F3 and F4 via a jumper (X40). Assignments of the jumpers to the contact type and the
spatial layout of the jumpers are described in Section at margin heading "Processor Board C-CPU-2".
Nominal Currents
The input transformers of the devices are set to a rated current of 1 A or 5 A by burden switching. Jumpers are
set according to the name-plate sticker. Location layout of these jumpers and their current rating allocation are
described in this Section under "C-I/O-11 Input/Output Board ",All the relevant jumpers of one side must be set
SIPROTEC, 7VU681, User Manual
C53000-G1176-C368-1, Release Date 07.2012
Changing setting groups using binary inputs
>Set Group Bit 1
No
No
Yes
Yes
Changing setting groups using binary inputs
>Active Group
Goup A
Goup B
Goup C
Goup D
Mounting And Commissioning
3.1 Mounting And Connections
61
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