2726188 Phoenix Contact, 2726188 Datasheet - Page 80

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

IL SYS INST UM E
GND
(24 V DC area)
FE
(24 V DC area)
FE spring
(24 V DC area)
Data routing
(all areas)
Current carrying capacity
(all areas)
7-10
PHOENIX CONTACT
This potential jumper is ground for the main and segment circuits.
The FE potential jumper is connected to the grounded DIN rail via the FE spring at each bus
coupler, each 24 V power terminal, and each segment terminal and is led through all
subsequent 24 V terminals.
In addition, connect the FE connection to a grounding terminal at the bus coupler.
If the FE jumper is interrupted by a 120 V AC/230 V AC voltage level, reconnect the FE
connection to a grounding terminal at the subsequent 24 V DC power terminal.
This spring creates the FE contact between the bus coupler, a 24 V DC power terminal or a
segment terminal, and the grounded DIN rail.
The bus signal is also transmitted within the station using a connection that is created
automatically when the station devices are snapped on.
The maximum total current flowing through the potential jumpers is limited. The maximum
current carrying capacity for each circuit is specified in "Circuits and provision of supply
voltages" on page 7-1.
NOTE: Overload
Please note that the GND potential jumper carries the total current of the main and
segment circuits. The total current of the main and segment circuits must not exceed the
maximum current carrying capacity of the potential jumpers (8 A). The maximum current
carrying capacity is determined not only by the potential jumpers, but also by the
power/segment terminal used.
Calculate the current in the station. Refer to the data provided in the terminal-specific data
sheets for your particular application.
The AX SALES software provides support when calculating the currents (see "Software
support" on page B-1).
Please also observe the information in "Grounding concept" on page 9-8.
Please also observe the information about the current carrying capacity of the power and
segment terminals provided in the terminal-specific data sheets.
NOTE: Malfunctions
If the current carrying capacity of the potential jumpers U
must be boosted via a power terminal, or a new station must be created using a bus
coupler
If the current carrying capacity of the potential jumpers U
current of U
The AX SALES software provides support when calculating the currents (see "Software
support" on page B-1).
S
and U
M
), a new power terminal must be used.
L
M
or U
, U
S
, and GND is reached (total
ANA
is reached, the voltage
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