Switching Elements on Printed Circuit Boards
C-CPU-2 processor board
The PCB layout of the processor board C–CPU-2 is illustrated in the following figure. The set nominal voltage of
the integrated power supply is checked according to Table 3-2, the quiescent state of the life contact
according to Table 3-3, the selected control voltages of the binary inputs BI1 to BI5 according to Table 3-4 and
the integrated RS232 / RS485 interface according to Table 3-5 to Table 3-7. The location and ratings of the
miniature fuse (F1) and of the buffer battery (G1) are shown in the following figure. Before checking the inte-
grated RS232/RS485 interface it may be necessary to remove the interface modules placed above.
[prozbgr-c-cpu-2-160502-wlk, 1, en_GB]
Figure 3-5
Processor printed circuit board C-CPU-2 with jumpers settings required for the board configura-
tion
Table 3-2 Jumper setting of the rated voltage of the integrated Power Supply on the C-CPU-2 processor
board
Jumper Nominal voltage
DC 24 V to 48 V DC 60 V to 125 V DC 110 V to 250 V, AC 115 V/230 V
X51 Not used 1-2 2-3
3.1.2.3
Mounting and Commissioning
3.1 Mounting and Connections
186 SIPROTEC 4, 7VK61, Manual
C53000-G1176-C159-5, Edition 05.2018
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