3.1 Mounting and Connections
461
7SD5 Manual
C53000-G1176-C169-1
The set nominal current of the current input transformers are checked on the input/out-
put board 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 additionally the common jumper X60. But:
In the version with sensitive earth fault current input (input transformer T8) there is no
jumper X64.
Jumpers X71, X72 and X73 on the input/output board C-I/O-2 are used to set the bus
address and must not be changed. The following table lists the jumper presettings.
Mounting location:
with housing size
1
/
2
: No. 3 in Figure 3-3, slot 33,
with housing size
1
/
1
: No. 3 in Figure 3-4, slot 33 right.
Table 3-9 Jumper settings of Board Address of the input/output board C-I/O-2
Jumper Factory Setting
X71 1-2 (H)
X72 1-2 (H)
X73 2-3 (L)
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