Pepperl+Fuchs SJ2-SN Bedienungsanleitung
ISO9001
2
3
Functional Safety
Inductive Slot Sensor
SJ2-SN, SJ3,5-S(1)N
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: +49 621 776 - 0
E-mail: info@de.pepperl-fuchs.com
North American Headquarters
Pepperl+Fuchs Inc.
1600 Enterprise Parkway
Twinsburg, Ohio 44087
USA
Phone: +1 330 425-3555
E-mail: [email protected].com
Asia Headquarters
Pepperl+Fuchs Pte. Ltd.
P+F Building
18 Ayer Rajah Crescent
Singapore 139942
Phone: +65 6779-9091
E-mail: [email protected]
https://www.pepperl-fuchs.com
3
Functional Safety SJ2-SN, SJ3,5-S(1)N
Contents
2019-12
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 Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.2 Interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.3 Marking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.4 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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3.5 Useful Lifetime . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
4 Mounting and Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4.1 Mounting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4.2 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4.3 Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
5 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
5.1 Proof Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
6 Maintenance and Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
7 List of Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Functional Safety SJ2-SN, SJ3,5-S(1)N
Contents
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2019-12
Functional Safety SJ2-SN, SJ3,5-S(1)N
Introduction
2019-12
5
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
The documentation consists of the following parts:
•Present document
•Instruction 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.
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.
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Functional Safety SJ2-SN, SJ3,5-S(1)N
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.
Functional Safety SJ2-SN, SJ3,5-S(1)N
Introduction
2019-12
7
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:
Informative Symbols
Action
This symbol indicates a paragraph with instructions. You are prompted to perform an action
or a sequence of actions.
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.
Note
This symbol brings important information to your attention.
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Functional Safety SJ2-SN, SJ3,5-S(1)N
Product Description
2 Product Description
2.1 Function
General
The device is an inductive slot sensor. Inductive slot sensors consist of a two coil system
sensing across the slot opening.
The device is a NAMUR safety sensor in 2-wire technology. The device transmits the analog
signal according to NAMUR to a connected control unit. A control unit can,
e. g., be a switch amplifier or an I/O card in a PLC.
In safety applications up to SIL 2, the device must be operated on a control unit according
to EN 60947-5-6 (NAMUR). Observe the limitations, see chapter 3.2.
In safety applications up to SIL 3, the device must be operated on a control unit
for SIL 3 safety applications. Pepperl+Fuchs offers control units for SIL 3 safety applications,
i. e. switch amplifier KFD2-SH-Ex1. Observe the limitations, see chapter 3.2.
SJ2-SN
The sensor has NC function (normally-closed). The device is in high impedance state
when the measuring plate is inside of the slot.
The sensor is qualified for safety functions in a temperature range from -40 °C to +100 °C.
The sensor has a slot width of 2 mm.
SJ3,5-SN
The sensor has NC function (normally-closed). The device is in high impedance state
when the measuring plate is inside of the slot.
The sensor is qualified for safety functions in a temperature range from -40 °C to +100 °C.
The sensor has a slot width of 3.5 mm.
SJ3,5-S1N
The sensor has NO function (normally-open). The device is in high impedance state
when the measuring plate is outside of the slot.
The sensor is qualified for safety functions in a temperature range from -25 °C to +100 °C.
The sensor has a slot width of 3.5 mm.
Note
See corresponding datasheets for further information.
Functional Safety SJ2-SN, SJ3,5-S(1)N
Product Description
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9
2.2 Interfaces
The device has the following interfaces.
•Safety relevant interface: device output
•Non-safety relevant interface: none
2.3 Marking
2.4 Standards and Directives for Functional Safety
Device-specific standards and directives
Note
For corresponding connections see datasheet.
Pepperl+Fuchs Group
Lilienthalstraße 200, 68307 Mannheim, Germany
Internet: www.pepperl-fuchs.com
SJ2-SN
SJ2-SN-Y89620
SJ2-SN-Y272219
SJ3,5-SN
SJ3,5-SN-Y89604
SJ3,5-SN-Y303204
SJ3,5-S1N
SJ3,5-S1N-Y303205
273025
282583
272219
273026
282586
303204
273027
303205
Allowed for SIL 2 applications
SJ2-SN
SJ2-SN-Y89620
SJ2-SN-Y272219
SJ3,5-SN
SJ3,5-SN-Y89604
SJ3,5-S1N
273025
282583
272219
273026
282586
273027
Allowed for SIL 3 applications
Functional safety IEC/EN 61508, part 2, edition 2000:
Functional safety of electrical/electronic/programmable
electronic safety-related systems (manufacturer)
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Functional Safety SJ2-SN, SJ3,5-S(1)N
Planning
3 Planning
3.1 System Structure
3.1.1 Low Demand Mode of Operation
If there are two control loops, one for the standard operation and another one for the functional
safety, then usually the demand rate for the safety loop is assumed to be less
than once per year.
The relevant safety parameters to be verified are:
•the PFDavg value (average Probability of dangerous Failure on Demand)
and the T1value (proof test interval that has a direct impact on the PFDavg value)
•the SFF value (Safe Failure Fraction)
•the HFT architecture (Hardware Fault Tolerance)
3.1.2 High Demand or Continuous Mode of Operation
If there is only one safety loop, which combines the standard operation and safety-related
operation, then usually the demand rate for this safety loop is assumed to be higher
than once per year.
The relevant safety parameters to be verified are:
•the PFH value (Probability of dangerous Failure per Hour)
•Fault reaction time of the safety system
•the SFF value (Safe Failure Fraction)
•the HFT architecture (Hardware Fault Tolerance)
3.1.3 Safe Failure Fraction
The safe failure fraction describes the ratio of all safe failures and dangerous detected failures
to the total failure rate.
SFF = (s + dd) / (s + dd + du)
A safe failure fraction as defined in IEC/EN 61508 is only relevant for elements or (sub)systems
in a complete safety loop. The device under consideration is always part of a safety loop
but is not regarded as a complete element or subsystem.
For calculating the SIL of a safety loop it is necessary to evaluate the safe failure fraction
of elements, subsystems and the complete system, but not of a single device.
Dieses Handbuch passt für folgende Modelle
15
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