2726188 Phoenix Contact, 2726188 Datasheet - Page 73

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

Function
Voltage
Current carrying capacity
Provision of U
6452_en_02
M
7.1.4
The main circuit with the main voltage U
is led through subsequent terminals until it reaches the next power terminal.
A new circuit starts at the next power terminal. This circuit is electrically isolated from the
previous one if electrically isolated power supply units are used.
Several power terminals can be used within one station.
The segment voltage U
terminals. Several independent segments can thus be created within the main circuit. The
main circuit provides the supply voltage for these segments.
Some terminals access the main circuit directly. 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 voltage in this circuit must not exceed 30 V DC.
The maximum current carrying capacity for the main circuit is 8 A (total current with the
segment circuit).
If the limit value of the potential jumpers U
a new power terminal must be used.
In the simplest case, the main voltage U
The main voltage U
used if:
1
2
3
4
Please note the special requirements of Inline terminals with relay outputs. 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.
A bus coupler that cannot supply the main voltage is used.
Different voltage areas (e.g., 24 V DC and 120 V AC) are to be created.
Electrical isolation between different I/O areas is to be created.
The maximum current carrying capacity of the potential jumpers U
(total current of U
Main circuit
M
can also be supplied via a power terminal. A power terminal must be
S
S
and U
can be tapped from the main voltage U
M
Electrical potential and data routing (Inline Modular IO)
) is reached.
M
M
M
starts at the bus coupler or a power terminal and
can be supplied at the bus coupler.
M
and U
and U
S
S
is reached (total current of U
.
M
using different segment
PHOENIX CONTACT
M
, U
S
, and GND
S
and U
M
7-3
),