IB IL 24 PWR IN/R-XC-PAC
8499_en_01 PHOENIX CONTACT 5
5 Electrical isolation/isolation of the voltage areas
Configuration and parameter data in a PROFIBUS system
Required parameter data 0 Byte
Need for configuration data 0 Byte
Electrical isolation/isolation of the voltage areas
Test section Test voltage
7.5 V logics supply, 24 V analog supply/functional earth ground 500 V AC , 50 Hz , 1 min
7.5 V logics supply, 24 V analog supply, 24 V main supply, 24 V segment
supply
500 V AC , 50 Hz , 1 min
24 V main supply, 24 V segment supply / functional earth ground 500 V AC , 50 Hz , 1 min
Error messages to the higher level control or computer system
None
Protective circuit
Surge protection (segment supply, main supply, 24 V supply) Input protective diodes (can be destroyed by permanent overload)
Pulse loads up to 1500W are short circuited by the input protective diode.
Polarity reversal (segment supply/main supply) Parallel diodes for protection against polarity reversal; in the event of an error the
high current flowing through the diodes causes the fuse connected upstream to
blow.
Polarity reversal (24 V supply) Serial diode in the lead path of the power supply unit; in the event of an error only
a low current flows. In the event of an error, no fuse trips within the external power
supply unit.
If you want to protect the 24 V supply, use a 2A medium-blow fuse.
Approvals
For the latest approvals, please visit phoenixcontact.net/products.
Common potentials
When providing the 24 V supply for generating U
L
and U
ANA
separately from the 24 V main supply/24 V segment supply
Main and segment supply have the same potential. From the
power terminal onwards, common ground is led through the
potential jumper to the devices as reference ground GND.
24 V supply for generating U
L
and U
ANA
, 24 V analog supply
U
ANA
, and 7.5 V communications power U
L
have the same
potential. From the bus coupler onwards, common ground is
led through the potential jumper to the devices as the refer-
ence ground "Logical GND" (U
L
-).
When providing the 24 V supply for generating U
L
and U
ANA
by jumpering the 24 V main supply/24 V segment supply
Main supply, segment supply, 24 V analog supply, and 7.5 V
communications power have the same potential. From the
power terminal onwards, common ground is led through the
potential jumper to the devices as the reference ground "Log-
ical GND" (U
L
-) for the communications power and analog
supply and separately as reference ground GND for the sup-
ply and segment level.
Separate potentials
When providing the 24 V supply for generating U
L
and U
ANA
separately from the 24 V main supply/24 V segment supply
The 24 V supply for generating U
L
and U
ANA
is physically and
therefore electrically
isolated from the main supply and the segment supply.
When providing the 24 V supply for generating U
L
and U
ANA
by jumpering the 24 V main supply/24 V segment supply
None
