Assembly and Installation
Operation Manual
Safety I/O Terminals
SI4000 / SO4000
Document no.: 5.08009.05
39
6
6.4.2
Wiring
Figure 6:
Wiring
Up to eight connections enable the connection of solid or finely stranded cables to the Bus
Terminals. The terminals are implemented in spring force technology. Connect the cables
as follows:
1
Open a spring-loaded terminal by slightly pushing with a screwdriver or a rod into the
square opening above the terminal.
2
The wire can now be inserted into the round terminal opening without any force.
3
The terminal closes automatically when the pressure is released, holding the wire se-
curely and permanently.
Wire cross-section
0.08 bis 2.5 mm²
Strip length
8 mm
6.5
Power supply
The supply connections V
k
for the module electronics (I/O bus) and supply connections
for the field devices (power contacts) of a terminal block are galvanically separated from
each other and can be supplied via separate 24 V
DC
voltage sources. If no electrical iso-
lation is required between I/O bus and field devices, the module electronics and the field
devices can be supplied from a single voltage source.
Summary of Contents for SI4000
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