Vega KFA6-SR2-Ex1.W Bedienungsanleitung PDF herunterladen

103374_ENG.xml 2003-03-25

Subject to reasonable modifications due to technical advances. Copyright Pepperl+Fuchs, Printed in Germany

Pepperl+Fuchs Group • Tel.: Germany +49 621 776-0 • USA +1 330 4253555 • Singapore +65 67799091 • Internet http://www.pepperl-fuchs.com

KFA6-SR2-Ex1.W

Isolated switch amplifiers

yellow

green

Output Power

supply

Safe area

Input I EEx ia IIC

Switch S3 in position I

Switch S3 in position II

Hazardous area

red

Power

Rail

LB/SC

collective

error message

only

KFD2-SR2-Ex1.W

without LB, SC

without SC

789

14 15

1+ 3-

3-2+

3-1+

10 kΩ

400 Ω ≤ R ≤ 2 kΩ

Composition

230 V AC

• 1-channel

• Control circuit EEx ia IIC

• Reversible mode of operation

• 1 relay output with 1 changeover

contact

• EMC acc. to NAMUR NE 21

• LB/SC monitoring

• Usable up to SIL 2 acc. to IEC 61508

The transformer isolated barrier

transfers digital signals from the

hazardous area. Sensors per

DIN EN 60947-5-6 (NAMUR) and

mechanical contacts may be used as

alarms. Control circuits are monitored

for lead breakage (LB) and short circuit

(SC). The external faults are indicated

according to NAMUR NE44 by a red

flashing LED. For type KFD2-SR2-

Ex1.W, an LB/SC collective error

message is in addition transferred

through the Power Rail to the power

feed module. The intrinsically safe input

is per DIN EN 50020 safely isolated

from the output and the power supply.

The relay output is in accordance with

IEC 61140 safely isolated from the

power supply.

Function

Output: relay

1 2 3

Inhaltsverzeichnis

Seite 1 - Composition

1103374_ENG.xml 2003-03-25Subject to reasonable modifications due to technical advances. Copyright Pepperl+Fuchs, Printed in GermanyPepperl+Fuchs Grou

Seite 2 - Technical Data

2Subject to reasonable modifications due to technical advances. Copyright Pepperl+Fuchs, Printed in GermanyPepperl+Fuchs Group • Tel.: Germany +49 621

Seite 3 - Supplementary information

3103374_ENG.xml 2003-03-25Subject to reasonable modifications due to technical advances. Copyright Pepperl+Fuchs, Printed in GermanyPepperl+Fuchs Grou

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