Power supplies and voltage concept
5981_en_06
PHOENIX CONTACT
27
4
Power supplies and voltage concept
4.1
Power supplies
To operate a field multiplexer station you must provide the supply voltage for the field
multiplexer, for the logic of the terminals and for the sensors and actuators.
The power supplies are connected using unshielded cables.
4.1.1
Supply at the field multiplexer
In the simplest case, the required 24 V supply voltages can be supplied at the field
multiplexer. The entire station is supplied with power from the field multiplexer.
In this case you must provide the following supply voltages:
U
MUX
24 V field multiplexer supply
The following voltages are generated from the field multiplexer supply:
–
Internal communications power of the field multiplexer
–
Communications power for the field multiplexer station I/O terminals, supplied through
potential jumpers U
L
;
–
Analog terminal supply provided through the potential jumper U
ANA
.
U
M
24 V main circuit supply
The main voltage U
M
supplies all of the devices connected to the main circuit.
U
S
24 V segment circuit supply
The segment voltage U
S
can be supplied separately to the field multiplexer or tapped from
the main circuit. Install a jumper or create a segment circuit using a switch to tap the voltage
U
S
from the main circuit U
M
.
Please refer to Figure 3-3 on page 18 for the connector assignment in order to connect the
power supplies to the field multiplexer.
If you use additional power or segment terminals, please refer to the terminal-specific data
sheets for the connector assignment.
WARNUNG:
Before removing a terminal from or inserting a terminal in the station, disconnect the power
to the entire station. Make sure the entire station is reassembled before switching the
power back on.
If the U
MUX
power supply is switched off, the bus stops since the U
L
communication power
fails as well.
Summary of Contents for 2861205
Page 1: ...User manual Configuring and installing the Inline field multiplexer...
Page 6: ...IB IL 24 MUX MA PAC 6 PHOENIX CONTACT 5981_en_06...
Page 26: ...IB IL 24 MUX MA PAC 26 PHOENIX CONTACT 5981_en_06...
Page 64: ...IB IL 24 MUX MA PAC 64 PHOENIX CONTACT 5981_en_06...
Page 86: ...IB IL 24 MUX MA PAC 86 PHOENIX CONTACT 5981_en_06...
