2726188 Phoenix Contact, 2726188 Datasheet - Page 74

• Manufacturer Part Number: 2726188
• Description: INTERBUS Bus Coupler
• Manufacturer: Phoenix Contact

IL SYS INST UM E
Function
Voltage
Current carrying capacity
Provision of U
7-4
PHOENIX CONTACT
S
7.1.5
The segment circuit with segment voltage U
segment terminal and is led through the subsequent terminals until it reaches the next
power or segment terminal.
You can use several segment terminals within a main circuit and therefore segment the
main circuit.
Almost all the terminals in the Inline station except the analog terminals are supplied from
the segment circuit (e.g., digital input terminals, digital output terminals).
The segment circuit also provides the auxiliary voltage for controlling circuit breakers and
contactors.
Some terminals access both the segment circuit and the main circuit. For example, the
encoder supply for positioning terminals is tapped from the main circuit, while the I/O is
supplied from the segment circuit.
The segment circuit can be switched off or fused using the safety or segment terminals. It
has the same reference ground as the main circuit. This means that circuits with different
fuses can be created within the station without external cross-wiring.
The voltage in this circuit must not exceed 30 V DC.
The maximum current carrying capacity for the segment circuit is 8 A (total current with the
main circuit).
If the limit value of the potential jumpers U
a new power terminal must be used.
There are various ways of providing the segment voltage U
1
2
3
4
Please note the special requirements of Inline terminals with relay output. These terminals
interrupt the potential jumpers U
This maximum current carrying capacity can be limited by certain terminals. Please refer
to the information in the terminal-specific data sheets.
The creation of segments is not possible for the 120 V AC and 230 V AC voltage levels.
Here, only one circuit is used, which corresponds to the main circuit.
The segment voltage can be supplied at the bus coupler or a power terminal.
The segment voltage can be tapped from the main voltage at the bus coupler or a power
terminal using a jumper or a switch.
An IB IL 24 PWR IN/2-F...-PAC power terminal with fuse for the main and segment
circuit or a segment terminal with fuse for the segment circuit can be used. In these
terminals the segment voltage is automatically tapped from the main voltage.
A segment terminal can be used without a fuse and the segment voltage can be tapped
from the main voltage using a jumper or a switch.
Segment circuit
M
and U
S
M
.
and U
S
starts at the bus coupler or a power or
S
is reached (total current of U
S
:
S
6452_en_02
and U
M
),