Pepperl+Fuchs KFD0-SD2-Ex1.1180, KFD0-SD2-Ex2.1045, KFD0-SD2-1.1180, KFD0-SD2-2.1045, KFD0-SD2-Ex1.1065 Safety Manual
...
ISO9001
2
3
SAFETY MANUAL SIL
SOLENOID DRIVER
KFD0-SD2-(Ex)*.*****,
KCD0-SD-(Ex)1.****(.SP),
HiC2871
PROCESS AUTOMATION
SAFETY MANUAL SIL K*D0-SD*-(EX)*.****(.SP), HIC2871
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"
SAFETY MANUAL SIL K*D0-SD*-(EX)*.****(.SP), HIC2871
Contents
1 Introduction......................................................................... 4
1.1 General Information.......................................................................................4
1.2 Intended Use ................................................................................................5
1.3 Manufacturer Information..............................................................................5
1.4 Relevant Standards and Directives ...............................................................5
2 Planning .............................................................................. 6
2.1 System Structure...........................................................................................6
2.1.1 Low Demand Mode..................................................................................6
2.1.2 High Demand Mode .................................................................................6
2.1.3 Safe Failure Fraction.................................................................................6
2.2 Assumptions ................................................................................................7
2.3 Safety Function and Safe State .....................................................................8
2.4 Characteristic Safety Values .........................................................................9
3 Safety Recommendation.................................................. 10
3.1 Interfaces....................................................................................................10
3.2 Configuration ..............................................................................................10
3.3 Useful Life Time ..........................................................................................10
3.4 Installation and Commissioning ..................................................................11
4 Proof Test .......................................................................... 12
4.1 Proof Test Procedure ..................................................................................12
4.1.1 Proof Test Procedure KFD0-SD2-(Ex)*.*****...........................................13
4.1.2 Proof Test Procedure KCD0-SD-(Ex)1.****(.SP) .....................................14
4.1.3 Proof Test Procedure HiC2871...............................................................15
5 Abbreviations.................................................................... 16
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SAFETY MANUAL SIL K*D0-SD*-(EX)*.****(.SP), HIC2871
Introduction
1Introduction
1.1 General Information
This manual contains information for application of the device in functional safety
related loops.
The corresponding data sheets, the operating instructions, the system
description, the Declaration of Conformity, the EC-Type-Examination Certificate,
the Functional Safety Assessment and applicable Certificates (see data sheet)
are integral parts of this document.
The documents mentioned are available from www.pepperl-fuchs.com or by
contacting your local Pepperl+Fuchs representative.
Mounting, installation, commissioning, operation, maintenance and disassembly
of any devices may only be carried out by trained, qualified personnel. The
instruction manual must be read and understood.
When it is not possible to correct faults, the devices must be taken out of service
and action taken to protect against accidental use. Devices should only be
repaired directly by the manufacturer. De-activating or bypassing safety functions
or failure to follow the advice given in this manual (causing disturbances or
impairment of safety functions) may cause damage to property, environment or
persons for which Pepperl+Fuchs GmbH will not be liable.
The devices are developed, manufactured and tested according to the relevant
safety standards. They must only be used for the applications described in the
instructions and with specified environmental conditions, and only in connection
with approved external devices.
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SAFETY MANUAL SIL K*D0-SD*-(EX)*.****(.SP), HIC2871
Introduction
1.2 Intended Use
The devices are available as safe area version (KFD0-SD2-*.*****,
KCD0-SD-1.****(.SP)) where they can be used as a signal conditioner providing
isolation for non-intrinsically safe applications. The devices are also available as
hazardous area version (KFD0-SD2-(Ex)*.*****, KCD0-SD-(Ex)1.****(.SP),
HiC2871) allowing use as isolated barriers for intrinsic safety applications.
The safe area versions supply power to solenoids, LEDs, and audible alarms
located in a safe area. The hazardous area versions supply power to solenoids,
LEDs, and audible alarms located in a hazardous area.
The devices are loop powered, so the available energy at the output is received
from the input signal. The output signal has a resistive characteristic. As a result
the output voltage and current are dependent on the load and the input voltage.
The KC devices are available with screw terminals or spring terminals. The type
code of the versions of the KC-devices with spring terminals has the
extension ".SP".
The KFD0-SD2-(Ex)*.***** and KCD0-SD-(Ex)1.****(.SP) are single devices with
DIN rail mounting while the HiC2871 is a plug-in device to be inserted into a
specific Termination Board.
1.3 Manufacturer Information
Pepperl+Fuchs GmbH
Lilienthalstrasse 200, 68307 Mannheim, Germany
KFD0-SD2-(Ex)*.*****
KCD0-SD-(Ex)1.****(.SP)
HiC2871
Up to SIL3
The stars replace a combination of characters, depending on the product.
1.4 Relevant Standards and Directives
Device specific standards and directives
Functional safety IEC 61508 part 1 – 7, edition 2000:
Standard of functional safety of electrical/electronic/programmable electronic
safety-related systems (product manufacturer)
Electromagnetic compatibility:
- EN 61326-1:2006
- NE 21:2006
System specific standards and directives
Functional safety IEC 61511 part 1 – 3, edition 2003:
Standard of functional safety: safety instrumented systems for the process
industry sector (user)
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SAFETY MANUAL SIL K*D0-SD*-(EX)*.****(.SP), HIC2871
Planning
2 Planning
2.1 System Structure
2.1.1 Low Demand Mode
If there are two 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 PFD
T
proof
the SFF value (Safe Failure Fraction)
the HFT architecture (Hardware Fault Tolerance architecture)
2.1.2 High Demand Mode
If there is only one loop, which combines the standard operation and safety
related operation, then usually the demand rate for this loop is assumed to be
higher than once per year.
The relevant safety parameters to be verified are:
PFH (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 architecture)
2.1.3 Safe Failure Fraction
The safe failure fraction describes the ratio of all safe failures and dangerous
detected failures to the total failure rate.
SFF = (λ
A safe failure fraction as defined in 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.
Nevertheless the SFF of the device is given in this document for reference.
value (average Probability of Failure on Demand) and
avg
(proof test interval that has a direct impact on the PFD
+ λdd) / (λs + λdd + λdu)
s
avg
)
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