VEGA F2D0-FB-Ex4.* for FF and PA User Manual

F2d0-fb-ex4.* fieldbarrier, Composition

_EN

003

-04-

Subject to reasonable modifications due to technical advances.

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F2D0-FB-Ex4.*

FieldBarrier

green

red

Main cable

Output 1

Output 2

Output 3

Output 4

Connections for the non-intrinsically safe
fieldbus segment

Connections for the
intrinsically safe
fieldbus segments

Trunk IN Trunk OUT

S1: Fieldbus termination, switchable

12S

11-

10+

U, I

15S

14-

13+

U, I

18S

17-

16+

U, I

21S

20-

19+

U, I

Composition

FieldBarrier for IEC 61158-2 fieldbusses

• High power in the field due to Ex e /

Ex i power feed concept

• Connects up to 4 intrinsically safe

output lines to a non-intrinsically
save fieldbus trunk

• Connection of fieldbus trunk in

increased safety EEx e

• Trunk protection due to short-circuit

current limitation for each output

• Cascadable
• 4 intrinsically safe EEx ia IIC outputs

in accordance to FISCO and Entity

• Installation in zone 1
• Housing IP67 for mounting in the

field

• Switchable integrated fieldbus

termination resistor

• Efficient shielding concept due to

electrical isolation between the
fieldbus trunk and the intrinsically
safe outputs

• Variants with different cable glands

The FieldBarrier connects a non-intrin-
sically safe fieldbus main line to 4 intrin-
sically safe output lines. Due to the
'increased safety' Ex e power feed con-
cept, sufficient power is available to
feed a multitude of field devices. Each
output provides 40 mA. Up to 120 m of
cable can be connected to an output
and operated without a termination
resistor. The FieldBarrier is connected
to a fieldbus according to IEC 61158-2
(MBP) on the trunk side by means of Ex
e connection terminals. The trunk can
be fed to another FieldBarrier of other
fieldbus stations by means of the trunk-
out terminals (cascading). Faults on the
output lines have no negative influence
on the trunk due to the individual short-
circuit monitoring of each output. In
terms of plant reliability it is recommen-
dable to connect one field device to
each output only.

Function

FieldBarrier for IEC 61158-2 fieldbusses