Pepperl+Fuchs KF**-CRG2-Ex1.D, KFD2-CRG2-Ex1.D, KF**-CRG2-1.D Series, KFU8-CRG2-Ex1.D, KFU8-CRG2-1.D Series Manual
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PROCESS AUTOMATION
MANUAL
Functional Safety
Transmitter Power Supply
KF**-CRG2-(Ex)1.D
ISO9001
Functional Safety KF**-CRG2-(Ex)1.D
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"
Functional Safety KF**-CRG2-(Ex)1.D
Content
1 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.1 Content of this Document . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.2 Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.3 Symbols Used . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2 Product Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.1 Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.2 Interfaces. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.3 Marking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.4 Standards and Directives for Functional Safety. . . . . . . . . . . . 8
3 Planning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.1 System Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.2 Assumptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.3 Safety Function and Safe State . . . . . . . . . . . . . . . . . . . . . . . . 11
3.4 Characteristic Safety Values . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.5 Useful Lifetime . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3.6 Derating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
4 Mounting and Installation . . . . . . . . . . . . . . . . . . . . . . . . 15
4.1 Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
5 Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
5.1 Proof Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
6 Maintenance and Repair . . . . . . . . . . . . . . . . . . . . . . . . . 19
7 List of Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
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Functional Safety KF**-CRG2-(Ex)1.D
Introduction
1Introduction
1.1 Content of this Document
This document contains information for usage of the device in functional safetyrelated 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 functional safety products from Pepperl+Fuchs see
www.pepperl-fuchs.com/sil.
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Functional Safety KF**-CRG2-(Ex)1.D
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 KF**-CRG2-(Ex)1.D
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 KF**-CRG2-(Ex)1.D
Product Description
2 Product Description
2.1 Function
General
The device supplies 2-wire and 3-wire transmitters, and can also be used with
current sources.
Two relays and an active 0/4 mA to 20 mA current source are available as
outputs. The relay contacts and the current output can be integrated in securityrelevant circuits. The current output is easily scaled.
On the display the measured value can be indicated in various physical units.
The device is easily configured by the use of keypad or with the PACTware
configuration software.
The input has a line fault detection.
The device is mounted on a 35 mm DIN mounting rail according to EN 60715.
KFD2-CRG2-1.D
This signal conditioner provides the galvanic isolation between field circuits and
control circuits.
The device is supplied by a voltage of 20 V DC to 30 V DC via Power Rail or
terminals.
A fault is signalized by LEDs and a separate collective error message output.
KFD2-CRG2-Ex1.D
This isolated barrier is used for intrinsic safety applications.
The device is supplied by a voltage of 20 V DC to 30 V DC via Power Rail or
terminals.
A fault is signalized by LEDs and a separate collective error message output.
KFU8-CRG2-1.D
This signal conditioner provides the galvanic isolation between field circuits and
control circuits.
The device is supplied by a voltage of 20 V DC to 90 V DC or
48 V AC to 253 V AC via terminals.
A fault is signalized by LEDs.
KFU8-CRG2-Ex1.D
This isolated barrier is used for intrinsic safety applications.
The device is supplied by a voltage of 20 V DC to 90 V DC or
48 V AC to 253 V AC via terminals.
A fault is signalized by LEDs.
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Functional Safety KF**-CRG2-(Ex)1.D
Product Description
2.2 Interfaces
The device has the following interfaces.
• Safety relevant interfaces: input and output
• Non-safety relevant interfaces: collective error message output
(only KFD2-CRG2-(Ex)1.D)
Note!
For corresponding connections see datasheet.
2.3 Marking
Pepperl+Fuchs GmbH
Lilienthalstraße 200, 68307 Mannheim, Germany
Internet: www.pepperl-fuchs.com
KFD2-CRG2-1.D, KFD2-CRG2-Ex1.D, KFU8-CRG2-1.D, KFU8CRG2-Ex1.D
2.4 Standards and Directives for Functional Safety
Device-specific standards and directives
Functional safety IEC/EN 61508, part 2, edition 2010:
Functional safety of electrical/electronic/programmable
electronic safety-related systems (manufacturer)
System-specific standards and directives
Functional safety IEC/EN 61511, part 1 – 3, edition 2003:
Functional safety – Safety instrumented systems for the
process industry sector (user)
Up to SIL 2
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