Siemens siprotec 7SJ63 - Page 40

Hardware and Connections
2-12 7SJ63 Manual
C53000-G1140-C120-1
inside the 7SJ63. Each common group can, for example, be used for signal replication
or as a common point for a signal (independent of the signals on the pin “a” terminals).
Depending on the version of the terminal block, 18 or 12 common connections are
available.
Grouping of common connections within a terminal block is as follows:
12 Terminal Block: Group 1 Terminals 1 through 6
Group 2 Terminals 7 through 12
18 Terminal Block: Group 1 Terminals 1 through 9
Group 2 Terminals 10 through 18
All shielding pins are connected together as shown in Figure 2-12. The shielding pins
are also connected to the rear panel of the 7SJ63. Depending on the version of the
terminal block, 18 or 12 shielding connections are provided.
Figure 2-12 Schematic Diagram of the Plug-in Terminal Blocks
Connections to
Plug-In Terminals
Connections to plug-in terminals are made with pin connectors.
There are two versions of pin connectors:
Version 1: 2-pin connector
Version 2: 3-pin connector
Signal Connection
Common Connection
Shielding Connection
Common Connections, Group 1
Looped Together
Common Connections, Group 2
Looped Together
Shielding Connections
Looped Together
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12 Terminal 18 Terminal
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