3 Mounting and Commissioning
358
7UT613/63x Manual
C53000-G1176-C160-2
The input/output board C-I/O-2 carries the following measured current inputs:
• For 3-phase applications
and 1-phase transformers:
There are 3 measuring inputs for the three-phase measuring location M3: I
L1M3
,
I
L2M3
, I
L3M3
. The jumpers X61, X62, X63 belonging to this measuring location must
be plugged all to the rated secondary current of the connected current transformers:
„1A “or „5A“. Furthermore, the corresponding common jumpers (X51 and X60) have
to be plugged to the same rated current.
• For 1-phase
busbar protection:
There are 3 measuring inputs for 3 different measuring locations, i.e. the feeders 7
to 9: I
7
, I
8
, I
9
. Each input can be set individually (X61, X62, X63) to „1A“, „5A“ or
„0.1A“. Only if the measuring inputs I7 to I9 have the same rated current, the
common jumpers X60 are plugged to this rated current.
If different rated currents (X51 and X60) are reigning within the input group, the po-
sition of the common jumpers (X51 and X60) is irrelevant.
• For the additional single-phase measuring input
I
X2
:
Jumper X64 is set to the required rated current for this 1-phase current input: „1A“
or „5A“.
Table 3-14 Jumper setting for nominal current or measuring range
Jumper Nominal current 0.1 A
Measuring range
10 A
Nominal current 1 A
Measuring range
100 A
Nominal current 5 A
Measuring range
500 A
X51 2-3 1-2 1-2
X60 1-2 1-2 2-3
X61 1-5 3-5 4-5
X62 1-5 3-5 4-5
X63 1-5 3-5 4-5
X64 1-5 3-5 4-5
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