H-System – Isolated Barriers and Termination Boards for HIMA
Product Specifications
20
16-11
13
2.3
Connection Options
A variety of termination boards is available with different methods of connecting to
the field and control side. Please refer to the documentation for the respective
device for the specific connection layout.
Connecting the Field Side
The field devices can be connected to the termination board via spring terminals:
Figure 2.8
Connection via spring terminals
Connecting the Power Supply and Fault Indication Output
Isolated Barriers
The isolated barriers are supplied via the termination board. The isolated barriers
are therefore attached to the termination board.
Termination Boards
The termination boards are supplied with power via spring terminals in
accordance with their design.
The supply voltage range depends on
• The values used for the isolated barriers
• The voltage drop of the decoupling diodes on the termination board
Figure 2.9
Connections of power supply and fault indication output via spring terminals
1
2
4
5
M1
Fault
5 6
Power
Supply
1+ 2- 3+ 4-
