Siemens 4AI I 4WIRE HART Informacion De Producto página 8

English
•
In wiring the submodule, you must strictly separate the
intrinsically safe lines from the non-intrinsically safe. They
must be laid in separate cable ducts.
•
Each of the intrinsically safe circuits in the electronic
submodule are to be laid separately and should not be laid
together with the ground wires. Observe the regulations in
EN 60 079-14.
•
Sensors from Zone 0, Zone 1, Zone 2 as well as Zone 20,
Zone 21, Zone 22 and the secured area may be connected
to the terminal submodule. The electronic submodule's
terminal assignment can be found in the ET 200iSP
Distributed I/O manual.
•
The safety data (maximum values) for the sensor/actuator
must be adjusted to the electronic submodule's
corresponding maximum values. The maximum values of
the sensor/actuator can be found in the associated ex
certificate. In accordance with EN 60 079-14, the following
are valid:
≤ U ≤ I
U ; I
0 i 0
•
If you connect up to 4 sensors on the electronic
submodule, then the negative measurement connections
must be connected to each other or, using equipotential
bonding, each one with a line. The lines must be laid out in
such a manner so they are not susceptible to interruptions.
•
If you connect up to 2 sensors on channel 0 and channel 2
(channels 1 and 3 are not switched), then no other further
measures are necessary.
A5E00308246-05
≤ P ≥ C
; P ; C
i 0 i 0
≥ L
+ C ; L
i Line 0
English
+ L
i Line