Phoenix Contact 2861205, User Manual

Page: 19 / 88

Description of the field multiplexer
5981_en_06 PHOENIX CONTACT
19
Connector 3 Floating alarm contact, field multiplexer supply (U
MUX
), master/slave configuration
1.1 Alarm_IN Alarm contact (floating, closed in the event of an error)
2.1 Alarm_OUT Alarm contact (floating, closed in the event of an error)
1.2, 2.2 U
MUX
field multiplexer supply (24 V DC)
1.3, 2.3 GND
MUX
GND for field multiplexer supply
The potential is reference ground for the field multiplexer electronics
1.4, 2.4 CONF
MA
Master/slave configuration
Connector 4 Power connector for main and segment supply (U
M
/ U
S
)
1.1, 2.1 U
S
24 V segment supply
The supplied voltage is directly routed to the potential jumper.
1.2, 2.2 U
M
24 V main supply
The supplied voltage is directly routed to the potential jumper.
1.3, 2.3 GND The reference potential is directly led to the potential jumper and is, at the same time, ref-
erence ground for the main and segment supply.
1.4, 2.4 FE Connection of the field multiplexer, i.e., of the field multiplexer station to functional earth
ground. The contacts are directly connected to the potential jumper and the FE spring on
the bottom of the housing.
Table 3-2 Terminal point assignment
Terminal
point
Assignment Remark
Functional earth ground is only used to discharge interference.
For information on the power supplies, please refer to the IL SYS INST UM E user manual.
ACHTUNG: Overload
The maximum permissible total current flowing through the potential jumpers U
M
and U
S
is 8 A.
ACHTUNG: Malfunction
Connect the field multiplexer to functional earth ground via the FE connection of
connector 4. For this, connect the corresponding contact with a grounding terminal (see
also Figure 3-6 on page 22).