Hardware and Connections
2-43
7SA6 Manual
C53000-G1176-C156-2
The system of numbers and letters used to designate the plug-in terminals is illustrat-
ed in Figure 2-15.
Figure 2-41
Correlation between plug-in terminals and connection numbers/letters
Each plug-in terminal forms a complete set of connections that consists of three pins
arranged as follows:
Pin a:
Signal connection
Pin b:
Common connection
Pin c:
Shielding connection
The signal pins are the only terminal pins that are directly connected to the internal
printed circuit boards of the 7SA6. Depending on the version of the terminal block, 18
or 12 signal connections are provided. Refer to Figure 2-16.
There are two isolated groups of common pins. Within a group the pins are inter-con-
nected as shown in Figure 2-16. The common pins “b” are not connected to the boards
inside the 7SA6. Each common group can, for example, be used for signal multiplica-
tion or as a common point for a signal (independent of the signals on the pin “a” termi-
nals). 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 2-16. The shielding pins
are also connected to the housing. Depending on the version of the terminal block, 18
or 12 shielding connections are provided.
1
a
b
c
2
12
a
b
c
Plug-in terminal 2
Plug-in terminal 1
Содержание siprotec 7SA6
Страница 2: ...Siemens Aktiengesellschaft Book No C53000 G1176 C156 2 ...
Страница 18: ...xviii 7SA6 Manual C53000 G1176 C156 2 ...
Страница 32: ...Introduction 1 14 7SA6 Manual C53000 G1176 C156 2 ...
Страница 82: ...Hardware and Connections 2 50 7SA6 Manual C53000 G1176 C156 2 ...
Страница 119: ...SIPROTEC 4 Devices 4 25 7SA6 Manual C53000 G1176 C156 2 Figure 4 20 CFC Logic example ...
Страница 190: ...Configuration 5 62 7SA6 Manual C53000 G1176 C156 2 ...
Страница 559: ...Control During Operation 7 45 7SA6 Manual C53000 G1176 C156 2 Figure 7 45 Circuit breaker trip test in DIGSI 4 ...
Страница 652: ...Installation and Commissioning 8 78 7SA6 Manual C53000 G1176 C156 2 ...
Страница 724: ...Technical Data 10 56 7SA6 Manual C53000 G1176 C156 ...
Страница 800: ...Appendix A 76 7SA6 Manual C53000 G1176 C156 2 ...
Страница 866: ...Appendix B 66 7SA6 Manual C53000 G1176 C156 2 ...