2
016-
04
16
FieldConnex® Basic Segment Coupler
Installation
Screw Terminals: Cable and Connection Information
■
Permissible wire core section:
Screw terminals with flexible or rigid wires: 0.2 ... 2.5 mm
²
■
Insulation stripping length: 7 mm
■
If you use stranded connectors: Crimp on wire end ferrules
■
Ensure that connectors are mechanically locked
■
Torque required for tightening terminal screws: 0.5. ... 0.6 Nm
Shielding/Grounding
For information on shielding and grounding the Segment Coupler, see chapter 3.4.
3.3.1
Power Supply without Power Rail
If devices with AC or universal power supplies are used, the advantages of Power Rail are not
available.
Conventional power supplies create complicated and expensive wiring systems. After all
devices are connected, there is a significant amount of wiring.
Figure 3.3
Conventional installation
3.3.2
Power Supply with Power Rail
For devices with a 24 V DC supply voltage, use of the Power Rail reduces wiring and
installation costs. The Power Rail almost completely eliminates the risk of wiring faults and
facilitates expansion.
Power is supplied to the Power Rail via a power feed module which provides a voltage of
24 V DC (max. 4 A).
The power feed module features a replaceable 5 A fuse at the front. This fuse ensures that the
Power Rail and connecting contacts are protected. It prevents damage caused by reverse
supply voltage or by installing too many isolators. The isolators on the Power Rail feature
integrated device fuses. Any faults in the isolator or in the signal leads do not affect the
Power Rail supply system. The 5 A fuse permits a rated current of up to 4 A across the entire
temperature range.
1
DIN mounting rail
1
3
4
6
2
5
1
3
4
6
2
5
1
3
4
6
2
5
1
3
4
6
2
5
13
12
9
10
7
14 15
11
8
13
12
9
10
7
14 15
11
8
13
12
9
10
7
14 15
11
8
13
12
9
10
7
14 15
11
8
24 V DC
1
