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3.1.2
Hardware Modifications
3.1.2.1 General
General
A subsequent adaptation of the hardware to the power system conditions can, for example, become necessary
with regard to the control voltage for binary inputs or the termination of bus-capable interfaces. Follow the pro-
cedure described in this section, whenever hardware modifications are done.
Auxiliary Voltage
There are different power supply voltage ranges for the auxiliary voltage (see Ordering Information in the Ap-
pendix). 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 Status Contact
The life contact of the device is a changeover contact, from which either the NC or NO contact can be connect-
ed 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-2 Input/Output Board" for side 2 and „ C-I/O-6 Input/Output Board" for
side 1. All the relevant jumpers of one side must be set uniformly for a rated current, i.e. one jumper each (X61
through X63) for each of the input transformers and additionally the common jumper X60.
If nominal current ratings are to be changed exceptionally, then the device must be notified to change at ad-
dresses 203 IN-SEC I-SIDE1 or 212 IN-SEC I-SIDE2 in the Power System Data (see Section 2.5).
Note
The jumper settings must correspond to the secondary device currents configured at addresses 203, 212. Oth-
erwise the device is blocked and outputs an alarm.
Control Voltage for Binary Inputs
When the device is delivered, the binary inputs are set to operate with a voltage that corresponds to the rated
voltage of the power supply. If the rated values differ from the power system control voltage, it may be neces-
sary to change the switching threshold of the binary inputs.
To change the switching threshold of a binary input, one jumper must be changed for each input. The allocation
of the plug-in jumpers to the binary inputs and their actual positioning are described in this Section.
SIPROTEC, 7UM62, Manual
C53000-G1176-C149-7, Release date 03.2010
Mounting and Commissioning
3.1 Mounting and Connections
365
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