KFD2-SR2-EX2.W PEPPERL & FUCHS, KFD2-SR2-EX2.W Datasheet

Isolator Switch

KFD2-SR2-EX2.W

Manufacturer Part Number
KFD2-SR2-EX2.W
Description
Isolator Switch
Manufacturer
PEPPERL & FUCHS
Datasheet
1.KFD2-SR2-EX2.W.pdf (4 pages)

Specifications of KFD2-SR2-EX2.W

Width
20mm
Isolation Input
Isolated
Supply Voltage
30VDC
Display Alarm Type
LED
Mounting
DIN Rail
Signal Output Type
Relay
Signal Conditioner Mounting
DIN Rail
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Subject to reasonable modifications due to technical advances.
Pepperl+Fuchs Group • Tel.: Germany +49-621-776-0 • USA +1-330-4253555 • Singapore +65-67-799091 • Internet www.pepperl-fuchs.com
Features
• 2-channel isolated barrier
• 24 V DC supply (Power Rail)
• Dry contact or NAMUR inputs
• Relay contact output
• Line fault detection (LFD)
• Reversible mode of operation
• Up to SIL2 acc. to IEC 61508
Function
This isolated barrier is used for intrinsic safety applications. It
transfers digital signals (NAMUR sensors/mechanical
contacts) from a hazardous area to a safe area.
The proximity sensor or switch controls a form C changeover
relay contact for the safe area load. The normal output state
can be reversed using switches S1 and S2. Switch S3 is used
to enable or disable line fault detection of the field circuit.
During an error condition, the relays revert to their de-
energized state and the LEDs indicate the fault according to
NAMUR NE44.
A unique collective error messaging feature is available when
used with the Power Rail system.
Connection
Switch Amplifier
II
I
Zone 0, 1, 2
Div. 1, 2
400 Ω ≤ R ≤ 2 kΩ
400 Ω ≤ R ≤ 2 kΩ
10 kΩ
10 kΩ
10 kΩ
10 kΩ
1+
2+
3-
4+
5+
6-
Power Rail
Front view
LED yellow:
Relay output Ι
LED red:
LB/SC channel Ι
LED yellow:
Relay output ΙΙ
LED red:
LB/SC channel ΙΙ
Assembly
KFD2-SR2-Ex2.W
ERR
24 V DC
Copyright Pepperl+Fuchs, Printed in Germany
S1
S2
S3
KFD2-SR2-Ex2.W
1
2
OUT CHK PWR
10
13
4
7
1
I
14
11
2
5
8
II
12
15
3
6
9
14+
15-
7
8
9
10
11
12
24 V DC
I
II
Zone 2
Removable terminals
blue
LED green:
Power supply
Switch S1
(Mode of operation channel Ι)
Switch S2
(Mode of operation channel ΙΙ)
Switch S3
(LB/SC-monitoring)
Removable terminals
green
2
Div. 2
KFD2-SR2-Ex2.W
1

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KFD2-SR2-EX2.W Summary of contents

Page 1

... Relay output ΙΙ LED red: LB/SC channel ΙΙ KFD2-SR2-Ex2 kΩ kΩ 6- ERR Power Rail KFD2-SR2-Ex2.W Removable terminals blue KFD2-SR2-Ex2.W LED green: 1 Power supply OUT CHK PWR 2 S1 Switch S1 S2 (Mode of operation channel Ι Switch S2 (Mode of operation channel ΙΙ ...

Page 2

... Statement of conformity TÜV 99 ATEX 1493 X , observe statement of conformity Subject to reasonable modifications due to technical advances. Pepperl+Fuchs Group • Tel.: Germany +49-621-776-0 • USA +1-330-4253555 • Singapore +65-67-799091 • Internet www.pepperl-fuchs.com switching cycles is no rated voltage.) m KFD2-SR2-Ex2.W eff eff Copyright Pepperl+Fuchs, Printed in Germany 2 ...

Page 3

... EC-Type Examination Certificate, Statement of Conformity, Declaration of Conformity, Attestation of Conformity and instructions have to be observed where applicable. For information see www.pepperl- fuchs.com. Subject to reasonable modifications due to technical advances. Pepperl+Fuchs Group • Tel.: Germany +49-621-776-0 • USA +1-330-4253555 • Singapore +65-67-799091 • Internet www.pepperl-fuchs.com KFD2-SR2-Ex2.W Copyright Pepperl+Fuchs, Printed in Germany 3 ...

Page 4

... I II Initiator high impedance/ contact opened Initiator low impedance/ contact closed Lead breakage, lead short-circuit Factory settings: switch 1, 2 and 3 in position I KFD2-SR2-Ex2.W Function Position with high input current I with low input current II with high input current I with low input current ...

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