Pepperl+Fuchs KFD2-SR2-Ex User Manual

ISO9001

2

Functional Safety

Switch Amplifier
KFD2-SR2-Ex*.W(.LB)

Manual

With regard to the supply of products, the current issue of the following document is applicable:
The General Terms of Delivery for Products and Services of the Electrical Industry, published by the Central
Association of the Electrical Industry (Zentralverband Elektrotechnik und Elektroindustrie (ZVEI) e.V.) in its most
recent version as well as the supplementary clause: "Expanded reservation of proprietorship"

Worldwide

Pepperl+Fuchs Group
Lilienthalstr. 200
68307 Mannheim
Germany
Phone: [phone] - 0
E-mail: [e-mail]

North American Headquarters

Pepperl+Fuchs Inc.
1600 Enterprise Parkway
Twinsburg, Ohio 44087
USA
Phone: [phone]
E-mail: [e-mail]

Asia Headquarters

Pepperl+Fuchs Pte. Ltd.
P+F Building
18 Ayer Rajah Crescent
Singapore 139942
Phone: [phone]
E-mail: [e-mail]
https://www.pepperl-fuchs.com

Functional Safety KFD2-SR2-Ex*.W(.LB)

Contents

1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

1.1 Content of this Document . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

1.2 Safety Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

1.3 Symbols Used . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2 Product Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2.1 Validity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2.2 Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2.3 Interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2.4 Marking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2.5 Standards and Directives for Functional Safety . . . . . . . . . . . . . . . . . . . 9

3 Planning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

3.1 System Structure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

3.2 Assumptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

3.3 Safety Function and Safe State . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

3.4 Characteristic Safety Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

3.5 Useful Lifetime . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

4 Mounting and Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

4.1 Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

5 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

5.1 Proof Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

6 Maintenance and Repair. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

7 List of Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

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Functional Safety KFD2-SR2-Ex*.W(.LB)

Contents

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Introduction

1 Introduction

1.1 Content of this Document

This document contains information for usage of the device in functional safety-related
applications. You need this information to use your product throughout the applicable stages
of the product life cycle. These can include the following:

• Product identification

• Delivery, transport, and storage

• Mounting and installation

• Commissioning and operation

• Maintenance and repair

• Troubleshooting

• Dismounting

• Disposal

Note

This document does not substitute the instruction manual.

Note

For full information on the product, refer to the instruction manual and further documentation
on the Internet at www.pepperl-fuchs.com.

The documentation consists of the following parts:

• Present document

• Instruction manual

• Manual

• Datasheet

Additionally, the following parts may belong to the documentation, if applicable:

• EU-type examination certificate

• EU declaration of conformity

• Attestation of conformity

• Certificates

• Control drawings

• FMEDA report

• Assessment report

• Additional documents

For more information about Pepperl+Fuchs products with functional safety,
see www.pepperl-fuchs.com/sil.

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Functional Safety KFD2-SR2-Ex*.W(.LB)

Introduction

1.2 Safety Information

Target Group, Personnel

Responsibility for planning, assembly, commissioning, operation, maintenance,
and dismounting lies with the plant operator.

Only appropriately trained and qualified personnel may carry out mounting, installation,
commissioning, operation, maintenance, and dismounting of the product. The personnel
must have read and understood the instruction manual and the further documentation.

Intended Use

The device is only approved for appropriate and intended use. Ignoring these instructions
will void any warranty and absolve the manufacturer from any liability.

The device is developed, manufactured and tested according to the relevant safety standards.
Use the device only

• for the application described

• with specified environmental conditions

• with devices that are suitable for this safety application

Improper Use

Protection of the personnel and the plant is not ensured if the device is not used according
to its intended use.

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Functional Safety KFD2-SR2-Ex*.W(.LB)

Introduction

1.3 Symbols Used

This document contains symbols for the identification of warning messages and
of informative messages.

Warning Messages

You will find warning messages, whenever dangers may arise from your actions.
It is mandatory that you observe these warning messages for your personal safety and in order
to avoid property damage.

Depending on the risk level, the warning messages are displayed in descending order
as follows:

Danger!

This symbol indicates an imminent danger.
Non-observance will result in personal injury or death.

Warning!

This symbol indicates a possible fault or danger.
Non-observance may cause personal injury or serious property damage.

Caution!

This symbol indicates a possible fault.
Non-observance could interrupt the device and any connected systems and plants,

or result in their complete failure.

Informative Symbols

Note

This symbol brings important information to your attention.

Action

This symbol indicates a paragraph with instructions. You are prompted to perform an action
or a sequence of actions.

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Functional Safety KFD2-SR2-Ex*.W(.LB)

Product Description

2 Product Description

2.1 Validity

This manual is only valid for devices with a part number greater than #203350.
Contact your Pepperl+Fuchs representative for information about older devices.

2.2 Function

KFD2-SR2-Ex1.W

This isolated barrier is used for intrinsic safety applications.
The device transfers digital signals from NAMUR sensors or dry contacts from

the hazardous area to the non-hazardous area.
The proximity sensor or switch controls a change-over relay contact for the load

in the non-explosion hazardous area. The output changes state when the input signal changes
state. The normal output state can be reversed using switch S1. Switch S3 is used to enable
or disable line fault detection of the field circuit.

During an error condition the outputs de-energize.
A fault is signalized by LEDs and a separate collective error message output.
The device is mounted on a 35 mm DIN mounting rail according to EN 60715.

KFD2-SR2-Ex2.W

This isolated barrier is used for intrinsic safety applications.
The device transfers digital signals from NAMUR sensors or dry contacts from

the hazardous area to the non-hazardous area.
The proximity sensor or switch controls a change-over relay contact for the load

in the non-explosion hazardous area. 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 outputs de-energize.
A fault is signalized by LEDs and a separate collective error message output.
The device is mounted on a 35 mm DIN mounting rail according to EN 60715.

KFD2-SR2-Ex1.W.LB

This isolated barrier is used for intrinsic safety applications.
The device transfers digital signals from NAMUR sensors or dry contacts from

the hazardous area to the non-hazardous area.
The proximity sensor or switch controls a change-over relay contact for the load

in the non-explosion hazardous area. The normal output state can be reversed using
switch S1. Switch S2 allows output II to be switched between the signal output or the fault
indication output. Switch S3 is used to enable or disable line fault detection of the field circuit.

During an error condition the outputs de-energize.
A fault is signalized by LEDs and a separate collective error message output.
The device is mounted on a 35 mm DIN mounting rail according to EN 60715.

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