2726188 Phoenix Contact, 2726188 Datasheet - Page 77

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

Main circuit M1/
segment S1.1
Segment S1.2
Main circuit M2/
segment S2.1
Segment S2.2
6452_en_02
I
The supply voltage for the bus coupler U
the main voltage U
The communications power U
generated from the bus coupler supply and led through the entire station.
Electrical isolation between logic and I/O is created through the separate supply of the bus
coupler supply U
No terminals are used in segment S1.1.
In a segment terminal with fuse, the segment voltage U
tapped from the main voltage U
The supply voltage for the power-level terminals and the subsequent terminals should be
supplied separately. For this, a new power terminal (e.g., IB IL 24 PWR/IN-PAC) is used,
which supplies the supply voltage U
Using a jumper, the segment voltage U
U
The segment voltage U
switch. Output terminals installed here can therefore be switched externally.
Examples of errors and their effects:
1
2
Noiseless ground (functional earth ground, FE)
Protective earth ground
Indicates the interruption of a potential jumper
If these voltages are not supplied separately (e.g., only the voltage U
and U
This segment terminal has been specifically used to create a protected segment circuit
without the need for an additional external fuse. If this is not necessary, the terminal does
not have to be used. In this case, the connection between U
must be established using a jumper (as shown on the IB IL 24 PWR/IN-PAC terminal) or
a switch (as shown on the IB IL 24 SEG-PAC terminal).
M2
In this example structure, a short circuit in segment S1.2 would not affect the terminals
in other segments. The fuse in the IB IL 24 SEG/F-PAC segment terminal means that
only segment S1.2 is switched off.
If an error occurred in the system, the terminals in segment S2.2, for example, could be
switched on or off without affecting the terminals in other segments.
at this terminal.
ANA
are also generated), there is no electrical isolation between logic and I/O.
BK
M1
and the main voltage U
is supplied at the bus coupler or a subsequent power terminal.
S
is provided at the IB IL 24 SEG-PAC segment terminal via a
Electrical potential and data routing (Inline Modular IO)
L
M1
and the supply voltage for the analog terminals U
. This segment circuit is protected by the internal fuse.
M2
.
S
BK
for segment S2.1 is tapped from the main voltage
M1
is supplied at the bus coupler (BK). In addition,
.
S
for segment S1.2 is automatically
M
and U
PHOENIX CONTACT
S
M1
on the bus coupler
, from which U
ANA
are
L
7-7