Configuring and installing the field multiplexer systems with the help of an example project
5981_en_06
PHOENIX CONTACT
49
7.3
Selecting suitable power supply units
The selection of suitable power supplies always depends on the individual system. 24 V DC
power supplies should always meet the following criteria:
Electrical isolation
If electrical isolation is required between logic and I/O you must provide the field multiplexer
supply U
MUX
and the I/O supply U
M
/U
S
from separate power supplies.
If you want to set up various electrically isolated areas within a field multiplexer station, use
additional power terminals that draw their current from separate power supplies.
Example project
There is no electrical isolation required between logic and I/O in the example project.
The master and the slave stations are be supplied from separate voltage sources.
One voltage source provides both the field multiplexer supply (U
MUX
to generate U
L
and
U
ANA
) as well as the I/O supply (U
S
and U
M
) for a station.
See also Section “Power supplies and voltage concept” on page 27.
Nominal value:
24 V DC
Ripple:
5%
Permissible range:
19.2 V to 30 V (ripple included)
Notes on setting up electrically isolated areas can be found in Section “Voltage concept
within an field multiplexer station” on page 29.
A selection of suitable power supply units can be found in Section “Ordering data” on
page 65 or in the INTERFACE catalog from Phoenix Contact.
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...
