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Auxiliary Voltage
There are different power supply voltage ranges for the auxiliary voltage (refer to the
Ordering Information in Appendix). The versions for 60/110/125 VDC and
110/125/220/250 VDC, 115 VAC are interchangeable by altering jumper settings.
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 B-CPU". When
the relay is delivered, all jumpers are set according to the name-plate sticker. In
general 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 applied to the device connections F3 and F4 via a jumper (X40). Alloca-
tions of jumpers to the contact type and the spatial layout of the jumpers are described
in this section under the margin heading "Processor Board B-CPU".
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. Jumper allocation to
nominal current and their spatial arrangement are described in this section under the
margin heading "Input/Output Module C–I/O –2". All jumpers must be set for one
nominal current, i.e. one jumper (X61 to X64) for each input transformer and addition-
ally the common jumper X60.
If nominal current ratings are changed exceptionally, then the changes must be set in
parameters 212 CT SECONDARY in the Power System Data (see Section 2.3).
Note
The jumper settings must correspond to the secondary device currents configured at
address 212. Otherwise the device is blocked and issues an alarm.
Control Voltage for
When the device is delivered the binary inputs are set to operate with a voltage that
Binary Inputs
corresponds to the rated voltage of the power supply. If the rated values differ from the
power system control voltage, it may be necessary 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.
Note
If binary inputs are used for trip circuit monitoring, note that two binary inputs (or one
binary input and an equivalent resistor) are connected in series. The switching thresh-
old must be significantly less than one half of the rated control voltage.
Type of Contact for
Input and output boards can contain relays whose contact can be set as normally
Output Relays
closed or normally open. For this it is necessary to alter a jumper. For which relay on
which board this applies is described in this section under margin heading "Input/Out-
put Board C–I/O –2" and "Input/Output Board C–I/O -1".
7UM61 Manual
C53000-G1176-C127-3
3.1 Mounting and Connections
237
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