VEGA TRENN548VEx User Manual

Operating Instruction

VEGATRENN 548 V Ex

Level and Pressure

on

VEGATRENN

548 V Ex

out

in

Inhaltsverzeichnis

Sicherheitshinweise...................................................................... 2

1 Produktbeschreibung

1.1 Funktion, Aufbau und Einbau............................................... 3

1.2 Technische Daten ................................................................. 5

1.3 Abmessungen ....................................................................... 7

1.4 Zulassungen ......................................................................... 7

1.5 Typschild ............................................................................... 7

2 Montage ....................................................................................... 8

3 Elektrischer Anschluß

3.1 Errichtungshinweise ............................................................. 9

3.2 Anschlußhinweise ............................................................... 10

3.3 Anschlußplan ...................................................................... 10

3.4 Anschlußbeispiele ............................................................... 11

4 Inbetriebnahme......................................................................... 14

Contents

5 Diagnose

5.1 Wartung ............................................................................... 14

5.2 Reparatur ............................................................................ 14

5.3 Störmeldung ........................................................................ 14

Safety information

The described module must only be installed
and operated as described in this operating
instruction. Please note that other action can
cause damage for which VEGA does not take
responsibility.

2 VEGATRENN 548 V Ex

Product description

1 Product description

1.1 Function, configuration and
mounting

Function

Ex-separator VEGATRENN 548 V Ex is used
for intrinsically safe, galvanically isolated
supply of up to 15 digital (VBUS) presure
transmitters. At the input side it is connected
to the tow-wire-VBUS-line of the signal
conditioning instruent and provides at the
output side 15 intrinsically safe ia-circuits.

The Ex-separator can be used in conjunction
with the following signal conditioning
instruments or sensors:

- VEGAMET 514 V and 515 V

- EV-card of VEGALOG 571

- pressure transmitter D80, D81, D84 or D86

in Ex-version with VBUS-electronics E23V

The ia-circuits are divided into 3 branches, up
to five sensors can be connected to each
branch. The ia-circuits are galvanically
connected and a fuse per branch is used for
safety reasons.

The intrinsically safe circuits are galvanically
isolated from the not intrinsically safe circuits.

Power supply

Intrinsically safe ia­circuits

Signal
conditioning
instrument
(VBUS)

Electronics

Branch 1

Branch 2

Branch 3

Configuration

The Ex-separator VEGATRENN 548 V Ex is
designed in 19“-technology with 5 TE (=
25,4 mm). The connection is made via a multi­ple plug acc. to DIN 41 612.

Mounting

There are the following mounting possibilities:

- in housing type 506 with VEGAMET

- in carrier BGT 596 Ex with VEGAMET

- in carrier BGT LOG 571 *

Example 1:
In housing type 506 with VEGAMET

Not-Ex-area

Supply

VEGAMET

VEGATRENN

515V

548VEx

VEGAMET
514 V
515 V

VEGATRENN
548 V Ex

)

with VEGALOG

Ex-area

VBUS ia IIC­circuits

Fig. 1.1: Block diagram of the Ex-separator

*) If several VEGATRENN 548 V Ex are used, it is

recommended to separate them into the cheaper
BGT 596 Ex.

VEGATRENN 548 V Ex 3

Example 2: In BGT 596 Ex M with VEGAMET

Supply

2

PC

–

–

–

+

–

+

OK

ESC

OK

ESC

BA

VEGAMET

VEGACOM

VEGASTAB

593

VEGAMET

515V

557

515V

–

+

+

–

ESC

VEGAMET

+

+

OK

ESC

OK

VEGAMET

515V

OK

ESC

OK

ESC

VEGAMET

VEGAMET

515V

515V

515V

548 V Ex

Product description

Not-Ex-area

2 x 2

2 x 2

2 x 2

2 x 2

VEGATRENNVEGATRENN

VEGATRENNVEGATRENN

VEGATRENN

548VEx

548 V Ex

VEGATRENN

548VEx

548 V Ex

548 V Ex

Ex-area

VBUS ia IIC­circuits

Power
supply unit

Blind cover

VEGACOM
557

VEGAMET 515 V VEGATRENN

Blind cover

Example 3: In BGT LOG 571 with VEGALOG

Supply

2

PC

PC

BA

BA

VEGACOM

VEGACOM

VEGALOG

VEGASTAB

Blind cover

Power
supply
unit

593

557

CPU

VEGACOM
557

VEGALOG

557

571EA

EA­cards

VEGALOG

VEGALOG

VEGALOG

571 EA

571 EV

571EV

EV­cards

571EV

VEGATRENN

548 V Ex

VEGATRENN
548 V Ex

Blind cover

548 V Ex

VEGATRENN

548VEx

VEGATRENN

VEGALOG

548 V Ex

Not-Ex-area

1

1

2

2

3

3

4

4

5

5

6

6

7

7

8

8

9

9

10

10

VEGALOG

VEGALOG

571 EA

571EA

Output
cards

Ex-area

15 x 2

15 x 2

15 x 2

1
2
3
4
5
6
7
8
9

10

571 EA

VBUS ia IIC­circuits

4 VEGATRENN 548 V Ex

Product description

1.2 T echnical data

Power supply

Operating voltage U

Power consumption approx. 4 W, approx. 6 VA
Fuse 1 A, slow-blow

Signal conditioning instrument circuit

For connection to signal conditioning instrument VEGAMET 514 V,

Input voltage U

The signal conditioning instrument circuit must only be connected to instruments with an
operating votlage less than 250 V.

Sensor circuit

Number 3 branches with 5 sensor current circuits each
Sensors hydrostatic pressure transmitter with

Voltage at 5 mA approx. 15 V DC, at 25 mA approx.

Current limitation at approx. 30 mA, shortcircuit proof
Fuse per circuit 1 fuse 40 mA, slow-blow
Connection line 2-wire (standard line) *
Resistance per conductor max. 15 Ω
Line length max. 1000 m

= 24 V AC (20 … 53 V), 50/60 Hz

nenn

= 24 V DC (20 … 72 V)

515 V or EV-card of VEGALOG 571

= 25 V DC with VEGAMET

nenn

= 24 V DC with EV-card VEGALOG

electronics type B (VBUS)

13,5 V DC

)

Sensor circuits, Ex-technical data

Classification [EEx ia] IIC, [EEx ia] IIB, [EEx ib] IIC, [EEx ib] IIB
Max. values (per branch)

- voltage U

- current I

- efficiency P
Characteristics linear

- 18,2 V

O

- 270 mA

O

- 926 mW

O

EEx ia IIC EEx ia IIB EEx ib IIC EEx ib IIB

Max. permissible outer inductance L

0,41 mH 1,8 mH 0,41 mH 1,8 mH

a

Max. permissible outer capacitance Ca83 nF 384 nF 290 nF 1300 nF

The intrinsically safe sensor current circuits are reliably galvanically isolated from the not
intrinsically safe circuits up to a peak value of the nominal voltage of 375 V.

Indicating elements

LED in front plate green on: operating voltage on

*)screened cable is recommended for electromagnetic interferences.

VEGATRENN 548 V Ex 5