Mounting And Commissioning
3.1 Mounting And Connections
SIPROTEC, 7VU681, User Manual
C53000-G1176-C368-1, Release Date 07.2012
67
Note
For a direct connection to DIGSI with interface RS232 jumper X111 must be plugged in position 2-3.
If there are no external terminating resistors in the system, the last devices on a RS485 bus must be configured
via jumpers X103 and X104.
Table 3-7
Jumper settings of the Terminating Resistors of interface RS485 on the C-CPU-2 processor
Note
Both jumpers must always be plugged in the same way!
Jumper X90 has currently no function. The factory setting is 1-2.
The terminating resistors can also be connected externally (e.g. to the connection module). In this case, the
terminating resistors located on the RS485 or PROFIBUS interface module or directly on the PCB of the
processor board C-CPU-2 must be de-energized.
Figure 3-4
Termination of the RS485 interface (external)
Jumper
Terminating Resistor
Connected
Terminating Resistor Dis-
connected
Presetting
X103
2-3
1-2
1-2
X104
2-3
1-2
1-2
Summary of Contents for SIPROTEC 7VU681
Page 8: ...Preface SIPROTEC 7VU681 User Manual C53000 G1176 C368 1 Release Date 07 2012 8 ...
Page 12: ...Contents SIPROTEC 7VU681 User Manual C53000 G1176 C368 1 Release Date 07 2012 12 ...
Page 100: ...Literature SIPROTEC 7VU683 User Manual C53000 G1176 C368 1 Release Date 07 2012 100 ...
Page 112: ...Index SIPROTEC 7VU681 User Manual C53000 G1176 C368 1 Release Date 07 2012 112 ...