Vega KFD2-SR2-Ex2.W Manuale Utente Scaricare il pdf

103368_ENG.xml 2003-06-03

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

KFD2-SR2-Ex2.W

Isolated switch amplifiers

Input I EEx ia IIC Input II EEx ia IIC

green

red red

Output I

Output II

Power

Rail

LB/SC

collective

error message

Switch S3 in position I

Switch S3 in position II

Power

supply

only

KFD2-SR2-Ex2.W

Safe area

Hazardous area,

zone 0, zone 1

yellow yellow

without

LB, SC

without SC

1+ 3-

3-2+

3-1+

S1 S2

S3 S3

10 kΩ

14 15

400 Ω ≤ R ≤ 2 kΩ

4+ 6-

6-5+

6-4+

10 kΩ

400 Ω ≤ R ≤ 2 kΩ

789 101112

Composition

24 V DC

• 2-channel

• Control circuit EEx ia IIC

• Reversible mode of operation

• 1 signal output with 1 changeover

contact per channel

• EMC acc. to NAMUR NE 21

• LB/SC monitoring

• LB/SC collective error message via

Power Rail

• 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-

Ex2.W, an LB/SC collective error

message is in addition transferred

through the Power Rail to the power

feed module. The intrinsically safe

inputs per DIN EN 50020 are safely

isolated from the output and the power

supply. Relay outputs are galvanically

separated from the mains power in

accordance with IEC 61140. Relay

outputs are galvanically separated from

each other in accordance with

IEC 61140.

Function

Output: relay

1 2 3

Sommario

Pagina 1 - Composition

1103368_ENG.xml 2003-06-03Subject to reasonable modifications due to technical advances. Copyright Pepperl+Fuchs, Printed in GermanyPepperl+Fuchs Grou

Pagina 2 - Technical Data

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

Pagina 3 - Accessories

3103368_ENG.xml 2003-06-03Subject to reasonable modifications due to technical advances. Copyright Pepperl+Fuchs, Printed in GermanyPepperl+Fuchs Grou